Standard Hydraulic Equipment

Transcription

1 Standard ydraulic quipment

2 Using the Standard ydraulic quipment atalog s a comprehensive manufacturer of a full range of hydraulic equipment, achi-ujikoshi manufactures, markets, and provides a wide range of other services for a full lineup of outstanding products. his general catalog introduces standard hydraulic equipment that has been carefully selected from the wide range of products manufactured by achi-ujikoshi. We hope that this catalog will be of assistance in planning your hydraulic system and for providing some guidelines for your inquiries about achi-ujikoshi products. nterpreting odel umbers odel numbers are assigned in accordance with achi-ujikoshi standards as described below. xample: VS Series Variable Volume iston ump VS (*) ype lassification ounting ethod/size unction lass uxiliary Symbol esign umber (ote)esign numbers are always two digits. change in the right digit of the design number indicates there is no component compatibility. owever, installation method compatibility still exists. his is subject to change without notice. Using the odel umber ndex he odel umber ndex at the back this catalog lists the model numbers for standard hydraulic equipment. Use the index when looking up equipment details.

3 ydraulic quipment and evice Safety recautions efore using any achi-ujikoshi hydraulic equipment or device, carefully read the precautions and the "andling" section for each of the standard hydraulic equipment products. recautions are classified according to the three types described below. ll three indicate important information that you need to know to ensure safety. e sure to read all precautions and carefully follow the advice that they provide. anger Warning aution his type of precaution indicates a condition in which incorrect handling creates the immediate risk of death or serious personal injury. his type of precaution indicates a condition in which incorrect handling creates the risk of death or serious personal injury. his type of precaution indicates a condition in which incorrect handling creates the risk of personal injury or material damage. *anger, Warning, and aution precautions are not comprehensive. ther risks may exist, even though they are not specifically mentioned. efore actually using any achi-ujikoshi product, be sure to read its user documentation. You should use the product or device only after you thoroughly understand its user documentation, always keeping safety first and foremost in your mind. *e sure that you always comply with the following laws in order to ensure safe operation of a product. igh ressure as Safety aw ndustrial Safety and ealth ct he ire aws ydraulic perating luid recautions Use of improper hydraulic fluid creates the risk of malfunction and breakdown. any hydraulic operating fluids are flammable, so do not use open flame and do not perform welding in the vicinity anger of hydraulic devices and equipment. ailure to follow this precaution creates the risk of fire. Use only anti-wear type hydraulic operating fluid that is S viscosity grade V to V. ever use any other type of hydraulic operating fluid or fluid that is contaminated with foreign matter. aution lways check your user documentation for information before using non-mineral type hydraulic operating fluid (water based, synthetic, etc.) Use the proper type of hydraulic operating fluid, ensuring that oil temperature, viscosity, contaminant level, and aution other factors are all within their prescribed ranges. Using hydraulic operating fluid outside of its prescribed ranges creates the risk of fire due to operational problems, mechanical damage, and fluid leaks. onfigure circuits and operate the system to ensure that the contamination level of the hydraulic operating fluid being used is always within the manufacturer's recommended values. heck the contamination level and the aution condition of the filter at regular intervals. lso periodically check hydraulic fluid for oxidation, deterioration, and moisture, and replace the hydraulic operating fluid whenever these levels exceed the recommended values of the fluid manufacturer. Whenever changing to another type of hydraulic operating fluid, be sure to thoroughly flush out the interior of the aution circuit. ever mix hydraulic operating fluids of different types. ontinued use creates the risk of malfunction of and damage to the equipment. ake sure to avoid splashing hydraulic operating fluid on you and others. Should fluid get on your skin, wash the aution area thoroughly with soap and water. llowing hydraulic operating fluid to remain on the skin creates the risk of rough skin. efore replacing the hydraulic operating fluid, allow the fluid in the system to cool sufficiently. ot fluid creates the aution risk of burn injury. llowing the hydraulic operating fluid level in the tank to become too low creates the risk of malfunction and aution breakdown. recautions when reparing for a est Run Warning lways leave product installation, removal, piping, wiring, and other work up to specialists. Warning ever attempt any unauthorized modification of the hydraulic system or control circuit. Warning aution aution ever attempt any unauthorized modification of the setting values of the pressure and flow rate with adjusting devices. lways check new hydraulic devices for looseness of internal components that may have occurred during shipment and check to make sure that all components are fitted securely. Whenever suspending a product, make sure that you use all of the attached eye plates or eye bolts. Using any other method (such a using a single eye plate) to suspend the product creates the risk of it falling.. hecking the roduct odel umber anger aution n any atmosphere where there is the danger of explosion or fire, be sure to use only products that are designed for operation in such atmospheres. Whenever installing a valve, pump, or motor, check its plate and engravings to confirm that it is the proper type. n many cases, you cannot tell the difference between different hydraulic equipment types by their outward appearance only.

4 . roduct andling aution aution ever climb onto, strike, drop down, or apply excessive force to a product. oing so creates the risk of malfunction, damage, fluid leaks, etc. Wipe up any hydraulic operating fluid that gets on the product or floor. ailure to do so creates the risk of personal injury due to the product slipping out of your hand and falling, and due to someone slipping on the fluid left on the floor.. xternal iping e sure to perform sufficient flushing. nchor pipe supports to a secure surface. aution Use pipe that has a sufficient pressure rating. (he rated pressure of the pipe should be quadruple the pressure that you plan to be using.) he finish of the seal surface should be within the equivalent of.s. ake sure there is no scratch, etc.. lectrical Warning Warning eave all electrical work up to a qualified professional. e sure to turn off power before performing electrical work. ailure to do so creates the risk of electric shock. ailure to check the condition of the gate valve and relief valve when checking the rotation direction of a hydraulic pump creates the risk of accident, malfunction, and breakdown.. oupling lignment hough motor and pump shaft alignment is checked at the factory prior to shipment, they may go out of alignment aution during shipping or due to installation conditions. ecause of this, you should always check for proper alignment during the test run.. Valve, ump, and otor nstallation aution aution aution aution aution. igh-pressure Restrictions Warning Warning. ccumulator Warning ake sure installation holes and surfaces are clean. nsufficient tightening torque for bolt can allow fluid to leak, creating the risk of fire. Whenever installing a product, always use bolts of the specified strength and specified number, and tighten them to the specified torque. ailure to observer proper specified values during installation creates the risk of fire due to malfunction, mechanical damage, and hydraulic fluid leaks. uring installation and removal, never strike the pump shaft or motor shaft with a hammer or otherwise subject them to impact. oing so can damage the product. n the case of a pump or motor that requires a drain pipe, the drain pipe that is used should not allow the pressure inside the casing to exceed the specified value. n the case of a pump or motor structure where operating fluid needs to be filled within the casing during operation, use a drain pipe that constantly replenishes operating fluid but does not allow air to collect inside of the casing. he drain pipe also should not let the level of operating fluid inside of the case to drop (does not allow fluid to return to the tank) during long periods of non-operation. heck to make sure the check valve is attached in the correct direction. ttaching the check valve in the incorrect direction may create abnormal pressure. When using a pump that does not have a pressure compensation function (with maximum pressure adjustment), be sure to install a hydraulic circuit maximum pressure regulating relief valve near the pump discharge side. When using a pump that has a pressure compensation function, piping capacity and additional conditions may delay the pump s response and cause pressure surges. nstall a surge-cutting relief valve to limit the maximum pressure in the circuit if the surge pressure could exceed the maximum pressure of the hydraulic piping and hydraulic equipment. When using an accumulator, use only nitrogen gas. e sure to read and understand all pertinent user documentation before using an accumulator. Warning ever attempt to modify an accumulator by mechanical processing or welding. 9. luid Supply Supply fluid up to the standard quantity through the prescribed oil supply port. ake care to ensure that no foreign aution matter or moisture contaminates the fluid. lso, check to make sure that the standard oil quantity is maintained even when the actuator is operated. recautions uring a trial operation Warning uthorized personnel only should be allowed in the vicinity of hydraulic devices during operation. ever touch devices during operation. Warning ever remove covers of rotating parts nor operate hydraulic devices with covers open. Warning efore turning on the power supply, first check to make sure that all operation switches are off. aution aution Start up a pump with no-load state, and check to make sure that the rotation direction is correct. Valves, pumps, and motor casings can become very hot during operation. o not touch them.

5 aution. ydraulic ump peration Warning aution aution. riming (ir leeding) Warning Warning aution Should you ever notice abnormal noise, abnormal heat, abnormal vibration, leaking oil, smoke, abnormal odor, or anyother abnormal operation in a valve, pump, or motor, immediately shut down operation and take the necessary steps to correct the condition. nstallation of sensors designed to detect abnormalities is recommended. ontinued use under the above conditions creates the risk of damage, fire, and personal injury. efore starting operation, check to make sure that all stop valves are correctly open or closed as required. articular attention is required in the case of the suction line and return line. hough there is some vibration during normal operation, extreme vibration may indicate a defective fitting. ontinued use creates the risk of accident or breakdown. Use a current meter to check for abnormally high loads on the motor. large load can indicate a defective fitting, sticking, etc. orrect the abnormality before operating the pump. Set the pressure to a value that does not operate the actuator (normally. to.a). erform operation carefully while monitoring the pressure with a pressure gauge. When bleeding air while the actuator is being operated, be careful about the movement of the machinery. Shut down the machinery immediately whenever there is the danger of accident. erforming work while operating fluid is below the prescribed level or using a mixture of different types of operating fluid creates the risk of malfunction or breakdown of the pump or other devices.. ctuator peration perate the actuator manually at low speed for initial operation. While carefully observing the operation of the Warning machinery, perform the sequence operation and automatic operation. rying to perform the sequence operation and automatic operation for the initial operation creates the risk of unexpected accident and breakdown.. leaning the ilter aution. Valve ontrol ll Valves he filter can become clogged right from the first test run. e sure to watch the filter indicator for signs of clogging. ontinued use of a clogged filter creates the risk of unexpected accident and breakdown. Warning Use valves within their prescribed maximum operating pressures (including surge pressure). Sudden operation of the handle (screw) is dangerous. e sure to unload the valve before gradually increasing Warning pressure. ever keep a valve at a pressure that is greater than its design specification pressure value. ake sure you understand the hydraulic circuit diagram and switching valve structure, and check the electrical operation circuit and solenoid valve before performing any operation. Warning n incorrect switching direction can cause reverse operation of the actuator and create the risk of unexpected accident and breakdown. ake sure you understand the hydraulic circuit diagram and flow control valve structure before performing any operation. Warning Sudden operation can change the operating speed of the actuator and create the risk of unexpected accident or breakdown. Solenoid Valves, roportional Valves, Servo Valves Warning Use valves within their prescribed maximum operating pressures (including surge pressure). Warning ever charge both coils of a double solenoid valve at the same time. aution aution he pump casing and solenoid coil surface can become very hot. ever touch them. e sure to use the appropriate model in environments that require water resistance. aintenance recautions uring ormal aily peration. perating luid aution aution aution aution n order to ensure proper performance of hydraulic devices, check the oil temperature, fluid level, and fluid color (for discoloration and deterioration) everyday. ny abnormalities create the risk of malfunction and breakdown. Whitish fluid indicates that water has contaminated the fluid, and blackish fluid indicates that the fluid has been subjected to high temperatures. Replace the operating fluid whenever these symptoms are noticed. perating fluid that is below the prescribed level can cause improper pump suction. eep fluid filled to prescribed level. s it is used for normal operations, operating fluid deteriorates and gradually loses its rust prevention, lubrication, and anti-forming tendency. eteriorated operating fluid creates the risk of malfunction and breakdown. s a general standard, replace operating fluid at least once a year. V

6 . ydraulic umps aution igh temperature on the surface of pump indicates the possibility of malfunction and breakdown. mmediately shut down the pump and investigate the causes.. luid eakage. ilters Warning aution. ressure auges. ank aution eakage from welding seam of piping, from a hydraulic pump, from hydraulic machinery, or from other sources creates the risk of serious accident. lways be cautious about the leakage strictly. ontinued use of a clogged filter creates the risk of unexpected accident and breakdown. Replace a filter as soon as possible after it shows signs of clogging. ever operate devices without filter elements. lways be sure to tighten the gauge cock whenever you do not need to check the pressure gauge. Vibration of the pointer can damage the pressure gauge. aution t depends on the contamination level of the hydraulic fluid to make an inspection inside the tank. s a general standard, the tank should be emptied and cleaned up once a year.. ydraulic evices aution ever allow cutting oil, grinding oil, clippings, water, or other similar matter to get on hydraulic devices.. oolers aution or a water cooler, adjust the temperature adjusting valve to keep the water temperature below. nstall a fan cooler to allow proper intake, outflow, and flow of cooling air. anding recautions uring on-use f the system will not be operated for long periods, be sure to take proper anti-rust measures. ot operating the system for long periods without taking anti-rust measures creates the risk of malfunction and aution breakdown due to rust. e sure to flush the system before using it again after a long period of non-use. ailure to flush out anti-rust oil creates the risk of malfunction and breakdown. isassembly and nspection Work recautions ever attempt to modify or reassemble valves, pumps, or motors. f not, it may cause the insufficient performance, Warning and creates the risk of malfunction and breakdown. ll disassembly and inspection should be left up to persons with required special knowledge for such work. Warning ttempting disassembly without the required knowledge creates the risk of unexpected accident. ncorrectly performed disassembly and inspection work creates the risk of malfunction and breakdown. efore starting disassembly or maintenance work, make sure that all electrical breakers are cut off, and use an Warning electroscope to check for the electricity. f not, it creates the risk of unexpected accident such as actuator runs out of control, electric shock, etc. Warning lectricity work while turning on the power creates the risk of unexpected accident due to electric shock. Warning aution lways make sure to release all residual pressure before starting disassembly work. erforming disassembly work without releasing residual pressure creates the risk of accident due to spurting fluid, the arbitrary movement of actuator, or dropping, and also creates the risk of malfunction and breakdown. lways place valves, pumps, and motors on a secure surface, and never place them on top of hydraulic machinery. f so, it creates the risk of damage to the hydraulic machinery. aution aution aution ever strike or drop valves, pumps, or motors, and never subject hydraulic equipment to strong external force. uring reassembly, failure to tighten to proper torque and contaminants getting into piping creates the risk of malfunction and breakdown. ake care to ensure that the tightening torque is at prescribed level and equal level. ake care that sealing materials, welding scales, and other contaminants do not get inside of piping. fter disassembly and reassembly, double check to make sure that you did not forget to open stopper valves, and that you have properly tightened all bolts, stopper plugs, couplings, and other required parts before starting the first operation. Storage recautions aution Seals may need to be replaced before using a product for the first time after long storage. V

7 Standard ydraulic quipment ontents [ ydraulic umps] ydraulic ump eatures or andling... - ydraulic ump Selection able... - iston umps VS VS Series Variable Volume iston umps... - ZS ZS Series Variable Volume iston ump... - Z Z Series oad Sensitive Variable iston ump... - Vane umps VS VS Series Small Variable Volume Vane ump... - VR VR esign Series Variable Volume Vane ump... - VR VR esign Series Variable Volume Vane ump... - V V Series igh-ressure ype Variable Volume Vane ump... - V Series igh-ressure ype Variable Volume ouble Vane ump UV UV Series Variable Volume Vane Uni-pump (S Uni-pump)... - ear umps Series ump... - Series ouble ump... - [ ydraulic Valves] ydraulic Valve eatures or andling... - ydraulic Valve Selection able... - odular Valve odular Valve Series... - odular Valve Series... - odular Valve Series odular Valve Series... - R Relief odular Valve... - R rake odular Valve R irect Relief odular Valve... - ressure Reducing odular Valve... - alanced iston ype ressure Reducing odular Valve... - ressure Reducing odular Valve... - S wo-ressure Reducing odular Valve... - Q Sequence odular Valve... - Q ounter alance odular Valve... - W ressure Switch odular Valve... - Y,Y low Regulator odular Valve... -, low ontrol odular Valve (ressure and temperature compensated)... -,V heck odular Valve... - ilot perated heck odular Valve auge odular lock... - igh-low System lock... - nd late, ree low late, / hange late... - S,S Solenoid Valve/odular Valve Subplate , Valve nstallation olt ist , ase lock igh-pressure Series V

8 Solenoid Valve SS SS Series (Wiring System: entral erminal ox) Wet ype Solenoid Valve... - S S Series (Wiring System: onnector ype) Wet ype Solenoid Valve... - S S Series (Wiring System: entral erminal ox) ower ower Solenoid Valve... - S S Series (Wiring System: onnector ype) ower ower Solenoid Valve... - S S Series (Wiring System: entral erminal ox) ower ower Solenoid Valve... - SS SS (S) esign Series Solenoid ontrol Valve... - S ine Solenoid Valve S Series... - S S Series on-leak ype Solenoid Valve... - SW SW Series Solenoid Valve With onitoring Switch... - SW SW Series oppet ype Solenoid Valve With onitoring Switch... - ressure ontrol Valve R Relief Valve... - R R Series Relief Valve (S ounting, alanced iston ype)... - R,R Remote ontrol Relief Valve... - RSS,RS Solenoid ontrolled Relief Valve... - RS R Series Solenoid ontrolled Relief Valve... - () ressure Reducing (and heck) Valve... - R alancing Valve (ressure Reducing and Relief Valve)... - ()Q ressure ontrol (and heck) Valve... - low ontrol Valve ()R hrottle (and heck) Valve... - () ype low ontrol (and heck) Valve (With ressure and emperature ompensation)... - () ype low ontrol (and heck) Valve (With ressure ompensation)... - () ype low ontrol (and heck) Valve (ine djustment ype With ressure and emperature ompensation)... - ()S S ype low ontrol (and heck) Valve (ine djustment ype With ressure and emperature ompensation)... -, () ype eed ontrol Valve (ine ontrol ype With ressure ompensation)... - irection ontrol Valve, Right ngle heck Valve n-line heck Valve... - ilot heck Valves... - auge ock... - ype anual Valve... - lange ype Series... - lectro-hydraulic control valve lectro-hydraulic roportional Valve Series... - R lectro-hydraulic roportional ilot Relief Valve... - R lectro-hydraulic roportional Relief Valve... - lectro-hydraulic roportional Relief and Reducing Valve... - ()S lectro-hydraulic roportional low ontrol Valve... - SR oad Response lectro-hydraulic roportional Relief and low ontrol Valve... - S lectro-hydraulic roportional low and irection ontrol Valve... - odular ype lectro-hydraulic roportional Reducing Valve... - odular ype lectro-hydraulic roportional low ontrol Valve... - iston umps Vane umps ear umps odular Valve Solenoid Valve ressure ontrol Valve low ontrol Valve irection ontrol Valve lectro-hydraulic control valve ydro-logic Valve ydraulic ylinder ydraulic Unit ydraulic ccessories echnical data odel o. ndex V

9 , ower mplifier Series for lectro-hydraulic roportional Valve rive... - Small ype ower mplifier Series for lectro-hydraulic roportional Valve rive... -, Small ype ulti-function ower mplifier... - S igh-response proportional flow control valve S S igh-response proportional flow control valve S-,,... - igh-speed Response roportional ontrol Valve mplifier Series... - lectro-hydraulic Servo Valve river Servo mplifier... - ydro-logic Valve omposite Valve Series ogic Valve... - ydraulic ylinder Series eneral urpose ydraulic ylinder... - ydraulic Unit Series (Standard Variable ump Unit)... - S Series (ompact Variable ump Unit)... - nverter rive S Series (nergy-saving Variable ump Unit with nverter rive)... - Series (ow-noise Standard Variable ump Unit)... - nverter rive /S Series (nergy-saving Variable ump Unit with nverter rive)... - ower eister... - ower it... - ydraulic ccessories ydraulic ccessories... - echnical data perating luid... - Water-lycol ype perating luid ydraulic evices... - S Units and onversion ormulas... - odel o. ndex odel o. ndex... - V

10 eatures q-us guarantees the high quality and performance on all products through finishing with our unique and precise machining technology based on the selected material and traditional heat treatment. woise has been thoroughly reduced on hydraulic pumps, a general source of noise on machinery and equipment. ll models such as the low noise type series can be operated quietly with little noise. ettention has been paid to surface treatment and selection of materials in hydraulic pumps so that they can be applied extensively with fire-resistant hydraulic fluid. nstallation and aintenance qimit the eccentricity between the drive shaft and hydraulic pump shaft to. mm, keep the angle error within and use flexible couplings for connections. wn operating hydraulic pumps with belts, gears and chains, prevent a radial or thrust load exceeding the allowable value from being applied on the pump shaft. lso, if necessary, install a device that prevents a load (bending force) from being applied at right angles on the shaft. ount hydraulic pumps so that the pump shaft is horizontal. euse a rigid mounting base. rhe direction of rotation is determined on each hydraulic pump. perate the hydraulic pump in the correct direction of rotation after checking the indicated model o. on the nameplate or the arrow indicating the direction of rotation on the body. he direction of rotation is clockwise when viewed from the shaft end. timit the suction pressure to within the range -. to +. a {-. to +. kgf/cm }. yn external drain type hydraulic pumps, directly connect the drain to the tank, insert the drain pipe under the oil level, and limit the drain back pressure to. a {. kgf/cm }. uwhen connecting steel pipes to the suction and discharge sides, ever apply the abnormal force to the pump by the piping. ieep the fitting length of couplings and hydraulic pump shafts so that it is within at least / or more of the coupling width. lso, use a size of coupling that matches the shaft diameter. owhen inserting couplings into shafts, insert them gently. When removing couplings from shafts, be sure to use a pulley extractor. void hitting the shaft when attaching or removing couplings.!onnect to the suction port above the horizontal to keep oil inside hydraulic pumps.!rovide an air bleed valve in circuits where it is difficult to release air at startup.!e sure to use only specified bolts on hydraulic pumps. Use bolts of.9 strength classification or equivalent. Uni-pumps Uni-pumps are compact pump/motor units which have a motor directly coupled to the hydraulic pump. Variable volume type vane pumps and piston pumps are available. s each of these pumps are ideally integrated with the motor, they can be easily installed, and more compact equipment configurations can be achieved economically. Standard motor: totally-enclosed splashproof housing surface flange cooled self-actuating type (totally enclosed fan-cooled type). kw to or less: lass insulation. kw to or more: lass insulation Voltage V / z V z anagement of ydraulic perating luid quse mineral oil-based hydraulic operating fluid. wrovide a suction filter of about to mesh on the suction port. ewhen operating hydraulic pumps at a high pressure or when using fireresistant hydraulic operating fluid, oil contamination greatly affect pump service life. So, use a filter of μm or less. ronsult your agent when using fireresistant hydraulic operating fluid. When using water- or glycol-based hydraulic operating fluid, refer to page - for details on applicable models of hydraulic pumps. tor details on the viscosity of hydraulic operating fluid, refer to the separate section "ydraulic perating luid." erms Used in his atalog he following describes the meanings of the following terms used in this catalog: Rated pressure: he maximum pressure at which a hydraulic pump can be used continuously. aximum operating pressure: he maximum pressure (including surge pressure) at which a hydraulic pump can be used within six seconds at most within / of the cycle time. llowable peak pressure: he maximum pressure (set pressure + surge pressure) that can be momentarily allowed he following shows the standards in ists of Sealing arts: S standard () S standard (backup ring) S standard S () ipe thread type mentioned in this catalog that are indicated as "*/*" comply with S seal systems. ote, however, that / adopts dimensions before S revisions were made in 99. achi ujikoshi adopts as the size whereas. is stated in current S standards. alculation ormula Required when Selecting ydraulic umps and otor.ump discharge flow rate Qp= q ηυ (l/min) q=discharge volume per rotation (cm /rev) =revolution speed(min - ) ηυ =volume efficiency.ower required for pump drive W= Qp η (kw) = Qp η (S) =discharge pressure(a) η =overall efficiency.otor revolution speed = f ( S)(min- ) f=frequency(z, z) =number of motor poles S=slip rate iston umps ydraulic umps -

11 ydraulic ump Selection able ydraulic umps ump ype Variable piston pumps ame VS series variable piston pump Uni-pump ZS series variable piston pump Z load-sensitive variable piston pump ype lassification VS UV ZS Z Rated ressure a {kgf/cm } {} {} {} {} isplacement cm /rev age Variable discharge volume vane pumps VS series compact variable vane pump Uni-pump VR design series variable vane pump Uni-pump VR design series variable vane pump Uni-pump V series high-pressure variable vane pump Uni-pump VS USV VR UV VR UV V UV {.} {.} {} {.} {.} {.} {} {.} nternal gear pump UV series variable vane uni-pump series pump series double pump UV {.} {} {}

12 VS SRS VR VU S U VS Series Variable Volume iston umps. to.cm /rev a * ischarge port esign o. is applied on VS- to make the pump more compact and lighter, and reduce noise. roduction of VS- has been discontinued. Use ZS-. ressure adjustment type has been added to VS-- and VS--. (esign o. is applied only on VS--*.) eatures nergy-saving ype with rastically Reduced oss -proprietary semi-circular barrel swash plate that receives pressure on its surface ensures a stable discharge volume at all times. his eliminates excess Specifications odel o. Volume cm /rev ischarge volume at no-load l/min ressure adjustment range a {kgf/cm } ermitted peak pressure a {kgf/cm } Rotating speed min - min - min - min - min - in. ax. VS--*- to. {. to.}. to {. to.} (. to.) to {. to } {}. to {. to } VS--*-(*)- to. {. to.}. to {. to.} (. to.) to {. to } {}. to {. to } VS--*-(*)- to. {. to.}. to {. to.} (. to.) to {. to } {}. to {. to } VS--*-(*)- to. {. to.}. to {. to.}.... (. to.) to {. to } {} to {. to } VS--*-(*)- to. {. to.}. to {. to.}.... (. to.) to {. to } {} -(*)- to {. to } ote) irection of rotation is clockwise when viewed from the shaft end. andling autions during ump nstallation and iping z Use flexible couplings for connecting the pump shaft to the drive shaft, and prevent a radial or thrust load from being applied on the pump shaft. x or centering of the pump shaft, limit the eccentricity between the drive shaft and hydraulic pump shaft to. mm, and keep the angle error within. c Set the length of insertion between coupling and hydraulic pump shafts so that it is within at least / or more of the coupling width. v Use a sufficiently rigid pump mounting base. b Set the pressure on the pump suction side to -. a or more (suction port flow velocity within m/sec). n Raise part of the drain piping to above the topmost part of the pump body, and insert the return section of the drain discharge volume, and enables the effective use of power corresponding to the load cycle. his "energy-saving type" conserves energy, reduces power loss, and helps to reduce hydraulic costs. piping into the hydraulic fluid. lso, observe the values in the following table to limit the drain back pressure to. a. odel VS- o. tem VS- VS- ipe joint size /" or more /" or more ipe. φ. dia ormore φ dia ormore ipe length m or less m or less m ount the pump so the pump shaft is oriented horizontally. anagement of ydraulic perating luid z Use good-quality hydraulic operating fluid, and use within a kinematic viscosity range of to mm /sec during operation. Use an R& type and anti-wear hydraulic fluid of S-V to. he optimum kinematic viscosity during operation is to mm /sec. Suction port * rain port Silent ype hat emonstrates ts ower Quietly roprietary low-noise mechanisms are incorporated on the shoe, swash plate, valve plate, and other locations to ensure silent operation. n particular, a semi-circular barrel swash plate stabilizes operation characteristics to ensure silent operation. ass kg x he operating temperature range is to. When the oil temperature at startup is or less, warm up the hydraulic pump by low-pressure, low-operation speed operation until the oil temperature reaches. c rovide a suction strainer with a filtering grade of about μm ( mesh). esure to provide a return line filter of grade μm or less on the return line to the tank. (When the hydraulic pump is used at ahigh pressure of a or more, we recommend providing a filter of μm or less. v anage the hydraulic operating fluid so that contamination is maintained at class S or lower. b Use hydraulic operating fluid within an operating ambient temperature of to. (continued on following page) iston umps -

13 iston umps nverter rive recautions z Set the revolution speed within the range of the pump specification revolution speed. x hanging the revolution speed may also affect the pump performance curves. efore using the inverter, check if the pressure and motor load factor are within the range of use. autions at Startup z efore you start pump operation, fill the pump body with clean hydraulic fluid via the lubrication port. odel o. njection amount cm VS-- VS--, VS--, x n unload is required when the motor is started under condition λ. onsult your agent regarding the circuit. xplanation of model o. VS (*) c ake sure that the pump operates in the direction of rotation the same as that indicated by the arrow on the pump body. v ir entering to the pump or pipes may cause noise or vibration. t startup, set the pump discharge side to a no-load state, and operate the pump in the inching mode to release any air in the pump or pipes. b rovide an air bleed valve in circuits where it is difficult to release air at startup. (See " umps" on page -.) ow to Set ressure and ischarge Volume or the factory default pump discharge volume is set to "maximum" and discharge pressure is set to "minimum". hange the discharge volume and discharge pressure settings according to your particular operating conditions. esign o. : VS-* : VS-*, VS-* : VS-*- only uxiliary symbol one: Side port type Z: xial port type (VS-*, VS-*) ressure adjustment range [ote] Reference Variable control mechanism [ote] Reference ax. pump capacity (cm /rev) ominal,,,, ounting method : ounting flange type : ounting foot type ump size,, VS series variable piston pump [xample ] *: ressure compensation type (manual mode) VS-- ischarge volume :-a [xample ] *: ressure compensation type (remote control mode) VS-- ischarge volume :-a [ressure adjustment] urning the pressure adjusting screw W increases the pressure. [ischarge volume adjustment] urning the flow rate adjusting screw W decreases the discharge volume. ote) or details regarding the relationship between flow rate adjustment length l and pump capacity q, see the tables provided in the installation dimension drawings for each of the pumps. irmly tighten the lock nuts after you have finished adjustments. [ote] Variable control mechanism Standard type * : ressure compensation type (manual mode) ption type * : ressure compensation type (remote control mode) *Q* : -pressure, -flow rate control R* S * W* S * RQ* S * * S * ischarge volume adjustment range ischarge volume : Solenoid cutoff control : -pressure control : -pressure, -flow rate control w/ solenoid cutoff : -cutoff control ischarge volume W W W ressure adjustment range W ressure ressure * : ressure adjustment range : to.a {. to.kgf/cm } : to a {. to.kgf/cm } : to a {. to kgf/cm } : to a {. to kgf/cm } * : pplicable to solenoid specifications, S * : S- S * : SS- : V /z : V /z : V : V [xample ] *Q*: -pressure, -flow rate control VS--Q ischarge volume Q:-a :-a [xample ] R*S*: Solenoid cutoff control VS--RS Solenoid specifications V /z SS- ischarge volume :-a sol"" sol"" ischarge pressure ischarge pressure [xample ] W*S*: -pressure control VS--WS Solenoid specifications V /z SS- ischarge volume sol"" ischarge pressure W:-a sol"" ischarge pressure [xample ] RQ*S*: -pressure, -flow rate control w/ solenoid cutoff VS--RQS Solenoid specifications V /z SS- ischarge volume ischarge pressure R:-a sol"" sol"" ischarge pressure [xample ] *S*: -cutoff control VS--S Solenoid specifications V /z SS- ischarge volume :-a sol"" sol"" ischarge pressure - Q, RS, WS, RQS and S types are not available for the VS--. Q, RQS and S types are not available for the VS-- -Z and VS-- -Z.

14 Variable ontrol echanisms Standard type Symbol xternal View haracteristics ydraulic ircuit xplanation low rate adjusting screw rain port ressure adjusting screw ischarge volume ischarge pressure * ischarge port Suction port * rain port ressure compensation type (manual system) When the discharge pressure reaches the preset pressure set by the pressure compensator, the discharge rate is automatically reduced to hold the pressure at the set pressure (full cutoff pressure). iston umps ption type Q ilot port low rate adjusting screw rain port q flow rate adjusting screw q flow rate rain port adjusting screw pressure adjusting screw ifferential pressure adjusting screw (adjustment forbidden) pressure adjusting screw ischarge volume ischarge volume q q ischarge pressure ischarge pressure * ilotport * ischarge port Suction port * rain port ischarge port * Suction port rain port ressure compensation type (remote control mode) his mode demonstrates the same characteristics as the manual mode. he full cutoff pressure can be adjusted by external pilot pressure. he discharge rate can be adjusted manually. ote ) -pressure, -flow rate control type he discharge volume changes in two stages by the pump's built-in sequence valve. his allows conventional high/ low pressure control to be performed on a single pump unit, and save energy in the hydraulic circuit. RS (R) ressure adjusting screw (at solenoid ) low rate adjusting screw S b rain port ischarge volume S S "" "" ischarge pressure * ischarge port Suction port * rain port Solenoid cutoff control type solenoid valve for unload is integrated into the pressure compensation type to minimize energy loss when pump output is not required. nly a slight amount of heat is generated. WS (W) ressure adjusting screw (at solenoid ) low rate adjusting screw S b ressure adjusting screw (at solenoid ) rain port ischarge volume S "" S "" ischarge pressure * ischarge port Suction port * rain port -pressure control type wo pressure compensation types can be obtained by switching the solenoid valve /. wo types of pressure control are possible with the actuator set to a constant speed. RQS (RQ) S () pressure adjusting screw (at solenoid ) q flow rate adjusting screw q flow rate adjusting screw pressure adjusting screw S b rain port pressure adjusting screw q flow rate adjusting screw ifferential pressure q flow rate rain port adjusting screw adjusting screw (adjustment forbidden) ischarge volume ischarge volume q q q S S ischarge pressure q S S ischarge pressure -pressure, -flow rate control type w/ solenoid cutoff he discharge volume can be changed in two stages by the sequencer valve and solenoid valve for unload mounted on the pump, and unloading is possible when pressure oil is not required. -cutoff control type wo types of pressure - flow rate characteristics can be obtained by the solenoid valve and cylinder mounted on the pump. ote ) any other variable control mechanism are also available in addition to those in the above table. lease consult your agent for details. ote ) We recommend ZR--*-9* as the remote control valve. or details, consult your agent. he pipe volume up to the remote control valve should be less than cm. * ischarge port Suction port * rain port ischarge port * * Suction rain port port -

15 iston umps ressure ompensation ype VS--*- ock nut 9 nstallation imension rawing ross-sectional rawing 9 low rate adjusting screw ischarge port (ormer )/ 9 erformance urves eneral erformance xial nput at ull utoff fficiency η,ηυ% xial input at full cutoff kw ( X).(X) rain port (flow rateadjustmentlength) Rc(ormer )/ ock nut. 9. ischarge volume Q Volume efficiency ηυ {.} verall efficiency η nput in {} 9. ressure adjusting screw min min min min ischarge pressure a {kgf/cm } {.} {} {} min min.. {} ull cutoff pressure a {kgf/cm } ey width ischarge volume Q l/min nput in kw ressure compensator. ischarge port (ormer )/ anual mode: standard type 9. art o. art ame art o. art ame art o. art ame 9 ubrication port ody ase Shaft ylinder barrel Valve plate iston Shoe Shoe holder arrel holder Swash plate hrust bush Spring holder asket Spring art VS-- art ame Q'ty o. Size Remarks * acking S- ond il seal V--V.. R-9 9 S R-9 S arts marked by an asterisk "*"are not available on the market. onsult your agent. ypical characteristics at hydraulic operating fluid kinematic viscosity of mm /s ischarge volume Q l/min rain volume R l/min oise level d() ressure - ischarge Volume haracteristics {.} oise haracteristics R. ischarge volume Q min min nput in min rain volume R {} 9 Suction port (ormer )/ 9 ump capacity q cm /rev low rate adjustment length mm Set a flow rate adjustment length within the above range. il will leak if the pump is operated below the adjustment range lower limit. Spring S ontrol piston uide pin arallel key Retainer eedle all bearing eedle bearing il seal Snap ring Snap ring Snap ring VS--*- VS--*- 9 9 xial nput arallel pin Spring pin exagon socket head bolt ross-recessed countersunk head screw exagon socket set screw exagon nut exagon plug etal plug ameplate ubrication port plate U plate Rivet ist of Sealing arts (it odel umber SS-) min {} ischarge pressure a {kgf/cm } easurement position: m rear of pump {.} /min min min t full cutoff {} {} ischarge pressure a {kgf/cm } nput in kw xial nput kw {.} {} ischarge pressure a {kgf/cm } Q=. l/min Q= l/min Q= l/min Q= l/min Q= l/min {} -

16 nstallation imension rawings VS-- *-(Z)- (side port type) φ -X.±. ±... (X). ressure adjusting screw () φ.. φ ischarge port Sb-/. ubrication port 9.. ey width.... low rate adjustment length r low rate adjusting screw rain port Rc/ Suction port Sb- ump capacity q cm /rev Relationship between flow rate adjustment length (r) and pump capacity (q). low rate adjustment range VS--*- low rate adjustment range VS--*- low rate adjustment lengthr mm Set a flow rate adjustment length within the above range. il will leak if the pump is operated below the adjustment range lower limit. iston umps (axial port type) 9 9.±. S b- (suction port mm dia.) -X ross-sectional rawing (X). low rate () adjustment length r rain port ressure low rate Rc/ adjusting screw adjusting screw.±. ±..±. 9 -X 9 S b-/ (discharge port mm dia.) art o. art ame art o. art ame 9 9 ey width φ. φ ressure compensator... ody ase Shaft ylinder barrel Valve plate iston Shoe Shoe holder arrel holder Swash plate hrust bush Seal holder asket Spring Spring S ontrol piston eedle ey ut Retainer lug 9 9 all bearing eedle bearing il seal Snap ring Snap ring Snap ring in exagon socket head bolt ross-recessed countersunk head screw exagon socket set screw etal plug ameplate U plate Spring holder ubrication port plate Rivet uide pin ist of Sealing arts (it odel umber SS--) art o. art ame Q'ty Size Remarks * asket S- ihon asket il seal --V.. R-9 S 9 R-9 9 S R-9 S arts marked by an asterisk "*"are not available on the market. onsult your agent. ubrication port -

17 iston umps fficiency η,ηυ% xial input at full cutoff kw erformance urves VS--*-(Z)- erformance urves VS--*-(Z)- fficiency η,ηυ% eneral erformance ischarge volume Q Volume efficiency ηυ verall efficiency η {.} nput in {} eneral erformance ischarge volume Q min min Volume efficiency ηυ verall efficiency η nput in {.} {} {} ischarge pressure a {kgf/cm } min min min min min min {} ischarge pressure a {kgf/cm } xial nput at ull utoff {.} {} min min {} ull cutoff pressure a {kgf/cm } ischarge volume Q r/min nput in kw ischarge volume Q r/min nput in kw ischarge volume Q r/min rain volume R r/min oise level d() ischarge volume Q r/min rain volume R r/min ypical characteristics at hydraulic fluid kinematic viscosity of mm /s {.} ischarge volume Q nput in min rain volume R ressure - low Rate haracteristics ischarge volume Q min min {} min min min ischarge pressure a {kgf/cm } {.} {} min min nput in min min rain volume R {} easurement position: m rear of pump ressure - ischarge Volume haracteristics oise haracteristics t full cutoff {} ischarge pressure a {kgf/cm } {.} {} {} ischarge pressure a {kgf/cm } nput in kw nput in kw xial nput kw {.} xial nput {} Q= l/min Q= l/min Q= l/min Q= l/min Q= l/min {} ischarge pressure a {kgf/cm } ypical characteristics at hydraulic operating fluid kinematic viscosity of mm /s xial nput kw xial nput Q= l/min Q= l/min Q= l/min Q= l/min Q= l/min {.} {} {} ischarge pressure a {kgf/cm } xial input at full cutoff kw.... xial nput at ull utoff min min {.} {} {} ischarge pressure a {kgf/cm } oise level d() easurement position: m rear of pump oise haracteristics t full cutoff min min {.} {} {} ischarge pressure a {kgf/cm } -

18 nstallation imension rawings VS-- *-(Z)-() (side port type) low rate adjustment length low rate adjusting screw 9. (axial port type) ross-sectional rawings VS-- *-(Z)- 9 VS---(Z) φ -X 9.±. r.±. S b- / (suction port mm dia.) -X ock nut.±.. (X). rain port ressure adjusting screw Rc/ 9...±..± cm ressure /rev esign Range o. to to low rate adjustment length low rate adjusting screw.. 9. S b- (discharge port mm dia.) -X l ey width φ. φ...9. φ.... ock nut ressure compensator ubrication port ischarge port Suction port Sb- Sb- /. (X) rain port Rc/. cm /rev ressure esign Range o. to to φ.. φ... () ressure adjusting screw.9... art o. 9 art o. 9 art ame ody ase Shaft ylinder barrel Valve plate iston Shoe Shoe holder arrel holder Swash plate hrust bush Seal holder asket Spring Spring S art ame ody ase Shaft ylinder barrel Valve plate iston Shoe Shoe holder arrel holder Swash plate hrust bush Seal holder asket Spring Spring S ontrol piston Relationship between flow rate adjustment length (r) and pump capacity (q) low rate adjustment range ump capacity q cm /rev ressure compensator ey width art o. 9 9 art o. 9 9 low rate adjustment lengthr mm Set a flow rate adjustment length within the above range. il will leak if the pump is operated below the adjustment range lower limit. art ame ontrol piston eedle ey ut Retainer lug all bearing eedle bearing il seal Snap ring Snap ring Snap ring art ame VS--*-() eedle ey ut Retainer lug Roller bearing eedle bearing il seal Snap ring Snap ring Snap ring ackup ring in VS--*- low rate adjustment range ubrication port art art ame o. ackup ring in exagon socket head bolt ross-recessed countersunk head screw low rate adjusting screw etal plug ameplate U plate 9 Spring holder uide ubrication port plate rifice Rivet ist of Sealing arts (it odel umber SS--) art o. art ame Q'ty VS--/ Size Remarks * asket S-- ihon asket il seal --V.. - S 9 - S - S ackup ring - S arts marked by an asterisk "*" are not available on the market. onsult your agent. art o. art ame exagon socket head bolt ross-recessed countersunk head screw low rate adjusting screw 9 etal plug ameplate U plate Spring holder uide ubrication port plate rifice Rivet rifice in lug ist of Sealing arts (it odel umber SS-) art o. art ame Q'ty VS-- Size Remarks * asket S-- ihon asket il seal --V.. - S 9 - S - S - S ackup ring - S arts marked by an asterisk "*" are not available on the market. onsult your agent. -9 iston umps

19 iston umps erformance urves VS--*-(Z)- fficiency η,ηυ% 9 eneral erformance ischarge volume Q Volume efficiency ηυ {.} verall efficiency η nput in {} erformance urves VS--*-(Z)-() fficiency η,ηυ% 9 min min min min ischarge pressure a {kgf/cm } eneral erformance nput in ischarge volume Q xial input at full cutoff kw min min min Volume efficiency ηυ verall efficiency η min {} {.} {} {} ischarge pressure a {kgf/cm } ischarge volume Q r/min nput in kw ischarge volume Q r/min rain volume R r/min xial nput at ull utoff {.} ypical characteristics at hydraulic operating fluid kinematic viscosity of mm /s {} ressure - ischarge Volume haracteristics {.} ischarge volume Q min min nput in min min {} rain volume R {} ischarge pressure a {kgf/cm } min min {} ull cutoff pressure a {kgf/cm } ischarge volume Q l/min nput in kw ischarge volume Q l/min rain volume R l/min oise level d() ressure - ischarge Volume haracteristics nput in kw oise haracteristics {.} xial nput {} ypical characteristics at hydraulic operating fluid kinematic viscosity of mm /s ischarge volume Q min min xial input kw easurement position: m rear of pump nput in min min rain volume R {.} {} {} ischarge pressure a {kgf/cm } t full cutoff ischarge pressure a {kgf/cm } min min {.} {} {} ischarge pressure a {kgf/cm } nput in kw xial input kw xial nput Q= l/min Q= l/min Q= l/min Q= l/min {} Q= l/min Q= l/min Q= l/min Q= l/min Q= l/min {.} {} {} ischarge pressure a {kgf/cm } xial input at full cutoff kw xial nput at ull utoff min min {.} {} {} ull cutoff pressure a {kgf/cm } oise level d() oise haracteristics easurement position: m rear of pump min min t full cutoff {.} {} {} ischarge pressure a {kgf/cm } -

20 Response erformance est ircuit iping volume cm Q ressure a raph egend t t s (Q=) a a a (Q=X) S S S ime s iston umps odel o. ressure ompensator Response ime (s) Surge ressure a{kgf/cm } t t S VS--. to.. to. to {. to.} VS--. to.. to. to {. to.} VS--. to.. to. to { to.} VS--. to.. to. to 9{. to 9.} VS--. to.. to. to 9{. to 9.} Response performance changes according to pipe volume and size. Use an anti-surging valve to prevent surge voltage. 9 art o. art ame art o. art ame ody Spool older lunger Spring Retainer ressure adjusting bolt 9 ut lug lug ounting bolt ist of Sealing arts art Size ame Q'ty o. or,, 9 R-- R-9 R-9 ote) he materials and hardness of the conform with S. -

21 iston umps ressure ompensation ype xplanation of model o.: VS * VS--*- esign o. : VS-* : VS-*, VS-* : VS-*- only ressure adjustment range : -.a {.-.kgf/cm } : - a {.-.kgf/cm } : -a {.-kgf/cm } : -a {.-kgf/cm } : ressure compensation type (remote control mode) ax. pump capacity (cm /rev) ominal,,,, ump size,, nstallation imension rawings ock nut low rate adjusting screw ischarge port (ormer )/ (X).(X) 9. (flow rate adjustment length) r ilot port Rc(ormer )/ rain port Rc (ormer )/... ey width φ. φ... (remote control mode) ax. pump capacity q cm /rev -Q haracteristics Set by remote control V ischarge pressure a he ZR--*-9* is the recommended remote control valve. rovide piping to the remote control valve at a pipe volume of cm or less. ischarge port (ormer )/ 9. R. ubrication port 9 Suction port (ormer )/ VS-- *- low rate adjustment length low rate adjusting screw l ilot port Rc/ (X). 9. rain port Rc/ ifferential pressure adjusting screw (adjustment forbidden) ubrication port.±. φ. ey width.... φ. x VS-- *-() low rate adjustment length l ±....(X) rain port Rc/ low rate ilot port pp adjusting screw Rc/ ock nut... φ9.. ifferential pressure adjusting screw (adjustment forbidden). ey width. +.. ischarge port Sb-/. ubrication port Suction port Sb- 9..±. φ. φ. x.±. 9.. ischarge port Sb- cm /rev ressure esign Range o. to φ...9 to. φ.... Suction port Sb- / -

22 -pressure, -flow Rate ontrol ype xplanation of model o.: VS Q esign o. : VS-*, VS-* : VS-*-Q* ressure adjustment range *: igh-pressure adjustment range, (Set to lowest pressure before shipping) Q*: ow-pressure adjustment range, (Set to. a before shipping) : -.a {.-.kgf/cm } : - a {.-.kgf/cm } : -a {.-kgf/cm } : -a {.-kgf/cm } Q: -pressure, -flow rate control ax. pump capacity (cm /rev) ominal,,, ump size, ump capacity q cm /rev (ote ) q q -Q haracteristics ischarge pressure a -Q haracteristics q iston umps nstallation imension rawings VS-- *Q*- q flow rate adjusting screw q flow rate adjusting screw.±. x.(x) φ rain port Rc/ ±.... pressure adjusting screw () φ9.. ey width.... φ. ressure compensator ischarge port Sb-/. ubrication port.(x) ump capacity q cm /rev (ote ) pressure adjusting screw q Suction port Sb- ischarge pressure a VS-- *Q*-().(X) q flow rate adjusting screw q flow rate adjusting screw.±. φ rain port Rc/. pressure adjusting screw.(in) ey width φ. ressure compensator ubrication port pressure adjusting screw x.±. 9.. cm /rev ressure Range esign o. to to ischarge port Sb- φ...9. φ.....(x) Suction port Sb- / ump odel o. q djustment efault q Range (cm /rev) (Setting cm /rev) VS-- to. VS-- to. VS-- to 9 q flow rate adjusting screw q flow rate adjusting screw VS-- to 9 ote ) he setting range of maximum pump capacity q varies according to the setting of q. ote ) verall efficiency at a low flow rate is lower than at the maximum flow rate. ay attention to this when selecting the motor capacity for the drive. l l ump capacity q, q cm /rev low adjustment length and pump capacity VS- q, l q, l () () low adjustment length l, l mm ump capacity q, q cm /rev VS- q, l q, l () () low adjustment length l, l mm -

23 iston umps Solenoid utoff ontrol ype xplanation of model o.: VS R S Solenoid power supply : V : V : V : V Solenoid specifications : S- S: SS- ressure adjustment range : -.a {.-.kgf/cm } : - a {.-.kgf/cm } : -a {.-kgf/cm } : -a {.-kgf/cm } R : Solenoid cutoff control S ump capacity q cm /rev -Q haracteristics S "" ischarge pressure a S "" VS-- R* S *- ax. pump capacity (cm /rev) ominal,,, ump size, nstallation imension rawings ressure adjusting screw (at solenoid ) low rate adjusting screw.±. S b φ. rain port Rc/ ifferential pressure adjusting screw (adjustment forbidden) ey width.... φ. ifferential pressure adjusting screw (adjustment forbidden) ubrication port (SS-) (S-) x VS-- R* S *-() ressure adjusting screw (at solenoid ) ock nut low rate adjusting screw 9..±. S b ± ischarge port Sb-/. Suction port Sb- φ.(x) ilot port Rc/ rain port Rc/ ifferential pressure adjusting screw (adjustment forbidden). ey width φ. 9. ifferential pressure adjusting screw (adjustment forbidden) ubrication port 9.(S-) (SS-) x.±. 9.. ischarge port Sb- Suction port Sb-/ cm /rev ressure esign Range o. to φ.. to.9. φ.... he coil surface temperature increases if this pump is kept continuously energized. o not touch the surface of the coil directly with your hands. -

24 -pressure ontrol ype xplanation of model o.: VS W S -Q haracteristics Solenoid power supply : V : V : V : V Solenoid specifications : S- S: SS- ressure adjustment range : -.a {.-.kgf/cm } : - a {.-.kgf/cm } : -a {.-kgf/cm } : -a {.-kgf/cm } W : -pressure control S ump capacity q cm /rev S "" S "" ischarge pressure a iston umps ump size, ax. pump capacity (cm /rev) ominal,,, nstallation imension rawings VS-- W* S *- ressure adjusting screw (at solenoid ) low rate adjusting screw.±. x VS-- W* S *-() S b φ ±..... rain port Rc / ressure adjusting screw (at solenoid ) ifferential pressure adjusting screw (adjustment forbidden) 9.. ey width.... φ9.... φ. ischarge port Sb-/. ifferential pressure adjusting screw (adjustment forbidden) ubrication port (SS-) 9(S-) Suction port Sb- ressure adjusting screw (at solenoid ) ock nut low rate adjusting screw 9..±. S b φ. (X ) ilot port pp Rc / rain port Rc / ressure adjusting screw (at solenoid ) ifferential pressure adjusting screw (adjustment forbidden). ey width. +.. φ.. 9. ifferential pressure adjusting screw (adjustment forbidden) ubrication port.(s-) (SS-) x.±. 9.. cm /rev ressure Range esign o. to to ischarge port Sb- φ...9. φ.... Suction port Sb- / he coil surface temperature increases if this pump is kept continuously energized. o not touch the surface of the coil directly with your hands. -

25 iston umps -pressure, -flow rate ontrol ype w/ Solenoid utoff xplanation of model o.: VS RQ S VS-- RQ* S *- ump size, nstallation imension rawings Solenoid power supply : V : V : V : V Solenoid specifications : S- S: SS- ressure adjustment range : -.a {.-.kgf/cm } : - a {.-.kgf/cm } : -a {.-kgf/cm } : -a {.-kgf/cm } RQ : -pressure, -flow rate control w/ S solenoid cutoff ax. pump capacity (cm /rev) ominal,,, ump capacity q cm /rev q q -Q haracteristics S "" S "" ischarge pressure a pressure adjusting screw (at solenoid ) q flow rate adjusting screw q flow rate adjusting screw.±..(x) S b φ rain port Rc /. ifferential pressure adjusting screw (adjustment forbidden) 9.. ey width.. φ... ifferential pressure adjusting screw (adjustment forbidden) ubrication port pressure adjusting screw (SS-) (S-) x ± φ9.. ischarge port Sb-/.(X). Suction port Sb- VS-- RQ* S *-() pressure adjusting screw (at solenoid ) q flow rate adjusting screw q flow rate adjusting screw.±. x.(x) S b φ.±. 9.. rain port Rc /. ifferential pressure adjusting screw (adjustment forbidden) cm /rev ey width. +.. to to φ.. ressure Range esign o. 9. ischarge port Sb- φ...9. φ.... ifferential pressure adjusting screw (adjustment forbidden) ubrication port.(x) pressure adjusting screw 9.(S-) (SS-) Suction port Sb- / he coil surface temperature increases if this pump is kept continuously energized. o not touch the surface of the coil directly with your hands. -

26 -cutoff ontrol ype xplanation of model o.: VS S VS-- * S *- ump size, nstallation imension rawings Solenoid power supply : V : V : V : V Solenoid specifications : S- S: SS- ressure adjustment range : -.a {.-.kgf/cm } : - a {.-.kgf/cm } : -a {.-kgf/cm } : -a {.-kgf/cm } : -cutoff control S ax. pump capacity (cm /rev) ominal,,, ump capacity q cm /rev -Q haracteristics q q S "" S "" ischarge pressure a iston umps.(x) q flow rate adjusting screw rain port q flow rate adjusting screw Rc / φ 9.. ifferential pressure adjusting screw (adjustment forbidden). ey width.. φ... ( pressure adjusting screw) ifferential pressure adjusting screw (adjustment forbidden) ubrication port ( pressure adjusting screw).±. x ±. 9.(S-).(SS-)... φ9.... ischarge port Sb-/. Suction port Sb- pressure adjusting screw pposite side: pressure adjusting screw VS-- * S *-().±..(X). q flow rate adjusting screw rain port ifferential pressure adjusting screw q flow rate adjusting screw Rc / (adjustment forbidden) φ ey width. +.. φ.. ( pressure adjusting screw) 9. ifferential pressure adjusting screw (adjustment forbidden) ubrication port ( pressure adjusting screw) x.±. 9...(S-).(SS-) pressure adjusting screw pposite side: pressure adjusting screw cm /rev ressure Range esign o. to to ischarge port Sb- φ...9. φ.... Suction port Sb- / he coil surface temperature increases if this pump is kept continuously energized. o not touch the surface of the coil directly with your hands. -

27 oot ounting it iston umps it odel o. pplicable ump odel o. ccessories imensions olt Q'ty Washer Q'ty -- VS- VS- - W VS- - W-..9. it odel o. imensions Weight () () Q (S) φ φ d φ d φ d φ d kg When only the mounting feet are required, the pump mounting bolts, washers and other parts are sold together as the oot ounting it. oupling kit it for VS-: S- iping lange it pplicable ump odel o. VS-- lunger it model o. Suction port ischarge port φ φ φ φ φ φ screw size ¾ ½ Rc screw size Rc¾ Rc½ size - - otes). oints are on sale in the oint it which includes s.. he dimensions of the seal section on the connector conforms with S.. /-** refers to S -. or VS-, RcX φd pplicable ump odel o. VS--, VS--, lunger it model o. S- S- Suction port ischarge port Suction port ischarge port φ d φ φ φ φ φ d φ φ φ φ X / -/ ounting bolt Washer WS-- WS-- WS-- WS-- R-9 R-9 R-9 R-9 Weight kga.... otes). he piping flange is on sale in the lange it which includes mounting bolts, washers and s.. he materials and hardness of the conform with S. or details on tightening torque, see page -. φd -

28 Uni-pump Specifications xplanation of model o. UV. * * * () otor selection curves ischarge volume Q ( mark standard compliant) esign o. : VS-.-.kW VS-. -.kw : VS-.-.kW uxiliary symbol one: Side port type Z: xial port type (VS-, ) umber of motor poles : poles otor terminal one: Right side viewed from pump side : eft side viewed from pump side otor output.:.kw.:.kw.:. kw.:.kw.:. kw.:.kw ressure adjustment range : -.a {.-.kgf/cm } : - a {.-.kgf/cm } : -a {.-kgf/cm } : -a {.-kgf/cm } (ote) ot available at cm /rev Variable control mechanism : pressure compensation type (ote) ontrol option is also standard on the VS pump. ax. pump capacity (cm /rev) ominal,,,, otor mounting method ounting foot type ump size : VS-, : VS-, : VS- VS series uni-pump bnormal Voltage symbol (See otor bnormal Voltage Specification list) ote) UV- is.-.kw UV- is.-.kw UV- UV- UV- (l/min).kw.kw.kw.kw {.}{.}{.}{.} {} {} {} {} {}{}{} ow to select the motor he lower side of the output curves for each of the motors shown above indicates the operating range under rated output for that motor. * Select a uni-pump that has a pressure and flow rate that is within the range of the drive so that the drive will not overload. * When the startup current of the uni-pump becomes higher for the motor, breakers may need to be changed. otor bnormal Voltage Specification list bnormal Voltage symbol ischarge pressure a {kgf/cm } Voltage - requency (l/min) bnormal Voltage symbol Voltage - requency one V-/z, V-z V - z ischarge volume Q V - z V - z V - z R V - z V - z S V - z V - z U V - z V - z V V - z V - z W V - Z.kW.kW.kW.kW.kW {.}{.}{.}{.} {} {} {} {} {}{}{} ischarge pressure a {kgf/cm } ischarge volume Q (l/min).kw.kw.kw {.}{.}{.}{.} {} {} {} {} {}{}{} ischarge pressure a {kgf/cm } iston umps -9

29 iston umps nstallation imension rawings UV--**-**-- (side port type) anging bolt anging bolt (.kw only) ubrication port erminal box terminal (.kw only) Suction port / UV-- **-**-- (side port type) ump model (nameplate) low rate adjusting screw φ (Round drain hole) ischarge port / erminal box terminal -. X.. rain port Rc/. (suction port, discharge port position) 9..kW lectric drive conceptual diagram ressure adjusting screw Rotation direction plate otor rating plate, terminal (erminal box side) common fan side R S Uni-pump (ame sticker) (erminal box side) View R: ounting foot hole shape ( locations).,.kw lectric drive conceptual diagram anging bolt (./.kw only) (./.kw only) erminal box terminal Suction port Sb- UV-- **-**-- (side port type) erminal box terminal Suction port Sb- / ubrication port anging bolt low rate adjusting screw φ (Round drain hole) erminal box terminal anging bolt anging bolt ubrication port -. -X ischarge port Sb-/. ±..kw lectric drive conceptual diagram φ (Round drain hole) erminal box terminal -.. ±. 9. -X ischarge port Sb- X... rain port Rc/ φ ump model (nameplate) ±.. (suction port, discharge port position). low rate adjusting screw X... rain port Rc/ φ ump model (nameplate). ±. 9. (suction port, discharge port position). ressure adjusting screw Rotation direction plate otor rating plate, common (erminal box side) terminal fan side -X R. ±. View R: ounting foot hole shape Suction port shape ( locations).,.kw lectric drive conceptual diagram R S View R: ounting foot hole shape ( locations) φ ressure adjusting screw Rotation direction plate otor rating plate (erminal box side), common terminal fan side S φ. ±. Uni-pump (ame sticker) (erminal box side) Suction port shape. ±. Uni-pump (ame sticker) (erminal box side) -X. ±. -. rive motor is fully enclosed fan cooled,. to. kw is type, and. to. kw is type.. Standard voltage for drive motor is V, / z or V, z.. Viewed from the pump side, suction port is on the left and discharge port is on the right.. roken lines indicate instances for the terminal. roken lines pass through to the other side of the pump along its center.. See page (-) for the dimension table and characteristics of drive motor.

30 otor Specifications utput kw otor imensions [mm] S φ rame o. Weight [kg] S haracteristics of drive motor for unipump (domestic standard rating) utput kw oles. (ote). odel umber Y () V- (VS series only). V*-**. V*-**. V*-**. V*-**. V*-**. V*-** Voltage [V] requency [z] urrent rating [] R rating [min - ] eat resistance. he asterisks * indicate variations in the hydraulic pump series, size, and position of terminal box. heck the ratings sticker on the side of the drive motor (terminal box side).. ontact us for variations in voltage.. he allowable fluctuating range of the voltage value is ±%.. aint olor: achi standard color ancel o. / iston umps -

31 iston umps ZS SRS VR VU S U ZS Series Variable Volume iston ump eatures qigh pressure, high reliability hese pumps deliver the perfect combination of high pressure (a {kgf/ cm }maximum) and high reliability. ydraulic device energy efficiency is ensured because variable volume capabilities provide the means to keep the discharge rate to the desired level. w ow noise, low vibration operation he semi-cylindrical swash plate of the VS series provides high support and Specifications to cm /rev to cm /rev a to cm /rev a rigidity, making it possible to increase the number of pistons (from nine to ) and equip optimal valve plates, all of which make low-noise operation possible. eigh reliability, long life seals used for mating surfaces eliminate worries about oil leaks. spherical valve plate maintains optimal hydraulic pressure balance, for stable operation across a wide range and better contamination resistance characteristics. * ischarge port * * rain port Suction port r wide range of possible applications n addition to use as a stand-alone pump, a VS Series pump can be combined with another pump in a wide range of possible applications. odel o. ump apacity cm /rev (djustment Range) Rated Voltage a {kgf/cm } aximum Working ressure a {kgf/cm } ressure djustment Range a {kgf/cm } Revolution Speed min in. ax. Weight kg ixed ischarge ump (ote ) apacity cm /rev ZS--* - to {. to.}. to. to {. to } (- ( to ) {} {} to {. to }. type) ZS--* - to {. to.}. to. to {. to } (- ( to ) {} {} to {. to }. type) ZS--* - to {. to.}. to. to {. to } (- ( to ) {} {} to {. to }.. type) ZS--* - to {. to.}. to.9 to {. to } (- ( to ) {} {} to {. to }... type) ZS--* - to {. to.}. to.9 to {. to } (- ( to ) {} {} to {. to }... type) ote. ixed discharged pump of pump can be configured by combining with ZS.. ump capacity adjustment ranges are for control codes, RS, and WS. or information about control code Q, see page -.. irection of rotation is clockwise when viewed from the shaft end. andling ump nstallation and iping recautions zuse flexible couplings for connecting the pump shaft to the drive shaft, and prevent radial or thrust load from being applied to the pump shaft. xccentricity between the drive shaft and pump shaft should be no greater than.mm, with an eccentric angle error of or less. ceep the fitting length of couplings and pump shafts at least / the length of the coupling width. vuse a sufficiently rigid pump mounting base. bset pump suction side pressure to -. a or more (suction port flow velocity less than m/sec). nraise part of the drain piping so it is above the topmost part of the pump body, and insert the return section of the drain piping into the hydraulic operating fluid. lso, observe the values in the following table in order to limit the drain back pressure to. a. odel o. tem ipe joint size,, t least /" t least " ipe.. t least φ t least φ ipe length m or less m or less mount the pump so the pump shaft is oriented horizontally.,use of rubber hose is recommended in order to minimize noise and vibration..heck valve is located on the discharge side of the pump. (o prevent reverse rotation and damage to the pump when it is off) ressure a {kgf/cm } {} {} {} {} {} anagement of ydraulic perating luid zuse only good-quality hydraulic operating fluid with a kinematic viscosity during operation within the range of to mm /sec. ormally, you should use an R& type and wear-resistant type of SV to or equivalent. he optimum kinematic viscosity during operation is to mm /sec. xhe operating temperature range is to. When the oil temperature at startup is or less, run the pump at low pressure and low speed until the oil temperature reaches. crovide a suction strainer with a filtering grade of about μ ( mesh). vanage hydraulic operating fluid so contamination is maintained at class S or lower. (ontinued on following page) -

32 buse hydraulic operating fluid when the operating ambient temperature is in the range of to. nverter rive recautions zset the revolution speed within the range of the pump specification revolution speed. xhanging the revolution speed may also affect the pump performance curves. efore using the inverter, check if the pressure and motor load factor are within the range of use. Startup recautions zefore starting up the pump, fill the pump body with clean hydraulic operating fluid through the lubrication port. odel o. il mount cm ZS- ZS- ZS- ZS- xplanation of model o. Standard type ressure compensation() ZS * ZS * Q * xn unload circuit is required when the motor i s started under condition λ Δ. ontact your agent about the unload circuit. check to make sure that the rotation direction of the pump is the same as the rotation direction indicated by the arrow on the pump body. vir entering the pump or pipes can cause noise or vibration. t startup, set the pump discharge side to a no-load state, and operate the pump in the inching mode to remove any air that might be in the pump or pipes. bquip an air bleed valve in circuits where it is difficult to release air before startup. (See " umps" on page -.) nnstall a check valve on the discharge side to protect the pump if the load is large or if there is an accumulator in the circuit on the discharge side of the pump. mo not release the pressure in the hydraulic circuit by switching the solenoid valve (RS/WS type) on the pump. esign number Variable ontrol echanisms : ressure compensation control ump capacity (cm /rev),,,, ounting method : lange type mounting : oot type mounting ump size,,, ption type -ressure, -low Rate ontrol ype (Q) ressure adjustment range : to a {. to.kgf/cm } : to a {. to kgf/cm } : to a {. to kgf/cm } ote: ZS-/ maximum operating pressure: a (kgf/cm ) esign number *: igh-pressure adjustment range, Q*: ow-pressure adjustment range, : to a {. to.kgf/cm } : to a {. to kgf/cm } : to a {. to kgf/cm } ote: ZS- maximum operating pressure: a (kgf/cm ) Variable ontrol echanisms Q: -pressure, -flow rate control onfiguring ressure and ischarge Rate Settings he factory default pump discharge rate setting is the setting's maximum value, while the default discharge pressure is the settings minimum value. hange the discharge rate and discharge pressure settings in accordance with your particular operating conditions. [ressure djustment] Rotating the pressure adjusting screw clockwise increases pressure. [ischarge Volume djustment] Rotating the flow Rotate left rate adjusting Rotate right screw clockwise decreases the discharge rate. ressure ote: Securely tighten the lock nut after making adjustments. * ischarge rate ischarge rate adjustment range ischarge rate -Q characteristics ump capacity cm / rev * ump capacity cm / rev -Q characteristics Rotate left Rotate right ressure ressure adjustment range ischarge pressure a q q * ischarge port Suction port * rain port ischarge pressure a * ischarge port iston umps ump capacity (cm /rev),, ounting method : lange type mounting : oot type mounting ump size,, * Suction port rain port -

33 iston umps Solenoid utoff ontrol ype (WS) ZS R * S * o not use the solenoid valve to release the pressure in the hydraulic circuit. -ressure ontrol System (WS) ZS W * S * Variable ontrol echanisms RS: Solenoid cutoff control (S: SS-) ump capacity (cm /rev),,,, esign number Solenoid power supply : V : V : V : V ounting method : lange type mounting : oot type mounting ump size,,, ressure adjustment range : to a {. to.kgf/cm } : to a {. to kgf/cm } : to a {. to kgf/cm } ote: ZS-/ maximum operating pressure: a (kgf/cm ) Variable ontrol echanisms WS: -pressure control type (S: SS-) ump capacity (cm /rev),,,, esign number Solenoid power supply : V : V : V : V ump capacity cm / rev ressure adjustment range : to a {. to.kgf/cm } : to a {. to kgf/cm } : to a {. to kgf/cm } ote: ZS-/ maximum operating pressure: a (kgf/cm ) -Q characteristics * ump capacity cm / rev * S"" ischarge pressure a -Q characteristics * S"" ischarge port Suction port rain port S"" ischarge pressure a * * S"" ischarge port ounting method : lange type mounting : oot type mounting ump size,,, nstallation imension rawings ressure ompensation ype nstalling a remote control relieve valve to the pilot port provides remote control of pressure compensation. (VS series " type") ZS--*- low rate adjusting screw ischarge port ilot port (Rc /). ressure adjusting screw φ X. 9 9 (X) (X) ubrication port / rain port (/) ey width φ. φ () ischarge port Sb- / Suction port rain port. φ Suction port Sb- / * Suction port -X -

34 ZS--*- low rate adjusting screw ilot port (Rc /). ischarge port ZS--*- ilot port (/) low rate adjusting screw.9 ressure adjusting screw φ X.9 (X) ressure adjusting screw φ ubrication port / 9 rain port (/) 9 ey width 9.. φ.... φ.. (.) ischarge port Sb- ubrication port / rain port (/) ey width.... φ φ.. 9 φ Suction port.9 -X Suction port Sb-. () φ. Suction port.9 iston umps ischarge portg ZS--*- ZS--*- ilot port (/) X. (X) (X) ressure adjusting screw φ ubrication port / 99 rain port () ischarge port Sb- /. (). -X Suction port Sb- / low rate adjusting screw.9 ischarge port φ. X ey width φ.. φ 9 ischarge port Sb / φ (.) () (.) () 9 φ Suction port.9 Suction port -X Sb. low djustment Rotation ngle (l) and ump apacity (q) ump capacity q cm /rev ZS-- ZS-- ZS-- low rate adjusting screw ock nut low rate adjustment length: l nd plug ump capacity q cm /rev 9 ZS-- ZS-- low rate adjustment length mm Use a flow adjustment length that is within the range noted in the above chart. Using a length that is outside the lower limit adjustment range can lead to oil leaks. low rate adjustment length mm Use a flow adjustment length that is within the range noted in the above chart. Using a length that is outside the lower limit adjustment range can lead to oil leaks. -

35 iston umps -ressure, -low Rate ontrol ype ZS--*Q*- q flow rate adjusting screw q flow rate adjusting screw. ischarge port pressure adjusting screw φ pressure adjusting screw rain port (/) ey width.9. x. ischarge 9 port (X) Sb- /.... φ. φ ubrication port. / () φ Suction port -X Suction port Sb- / ZS--*Q*- q flow rate adjusting screw q flow rate adjusting screw. ischarge port ZS--*Q*- pressure adjusting screw.9 (X) pressure q flow rate adjusting screw adjusting screw q flow rate adjusting screw.9 ischarge port φ φ x. (X) pressure adjusting screw x rain port (/) 9 9 ey width 9.. pressure adjusting screw.... φ rain port (/) ey width.. φ φ.. φ 9 ischarge port Sb- Sb- / ischarge port ubrication port 9 / φ.. (). φ (.) ubrication port / Suction port.9 -X Suction port Sb-. () φ Suction port Sb- / Suction port. -X..9 ump Volume djustable Range ump odel o. Volume djustment Range cm /rev q ote q ote actory efault q Setting (cm /rev) ZS-- *Q*- to to ZS--*Q*- to to ZS--*Q*- to to ote: he setting range for pump maximum capacity q depends on the q setting. ote: verall efficiency at a low flow rate is lower than at the maximum flow rate. eep this in mind when deciding on the drive motor capacity. ote: is set to. a before shipping. ( is the lowest pressure) ump capacity q -Q characteristics q q cm /rev ischarge pressure a -

36 ZS ump -ressure -low Rate ontrol low Rate djustment raph e sure to adjust the low flow rate first, and then adjust the maximum flow rate. Remember that the maximum flow rate adjustment range (lower limit) changes in accordance with the low flow rate adjustment. he maximum flow rate adjustment lower limit is equivalent to the low flow rate adjustment length () plus mm. ump efficiency at a low flow rate is worse than at the maximum flow rate. eep this in mind when deciding on the drive motor capacity. ump capacity q (cm /rev) 9 ump small capacity adjustment length ZS- ZS- ZS- djustment length: (mm) ump capacity q (cm /rev) 9 ump maximum capacity adjustment length ZS- ZS- ZS- djustment length: (mm) q (maximum capacity) adjusting screw q (small capacity) adjusting screw iston umps -

37 iston umps Solenoid utoff ontrol ype ZS--R*S*- low rate adjusting screw ischarge port. ZS--R*S*- low rate adjusting screw ischarge port. ZS--R*S*- low rate adjusting screw.9 ischarge port ZS--R*S*- ZS--R*S*- low rate adjusting screw φ x. 9 9 (X) (X) φ.9 x (X) φ x. (X) (X) ubrication port / 9 rain port (/) ubrication port / rain port (/) 9 ey width φ. φ ey width φ φ.. ubrication port / rain port (/). ischarge port Sb- / ischarge port Sb- ey width φ ubrication port / 99 rain port (). φ.. ischarge port Sb- / () ressure adjusting screw. φ () Suction port -X Suction port Sb- / ressure adjusting screw φ. 9 (.) φ Suction port Sb- ressure adjusting screw. () φ ressure adjusting screw Suction port.9 -X Suction port. -X Suction port Sb- /..9. x ischarge (.) Suction port port Sb / () Sb Using the installed solenoid valve so it is continuously conducting current can cause the coil surface to become hot. o not touch the surface of the coil directly with your hands. o not use the solenoid valve to release the pressure in the hydraulic circuit. -.9 ischarge port φ ey width φ.... φ. φ (.) () 9 φ Suction port.9 -X.

38 -ressure ontrol ype ZS--W*S- ubrication pressure port / adjusting screw rain port (/).. pressure adjusting screw low rate adjusting screw. ischarge port ZS--W*S*- low rate adjusting screw. ischarge port ZS--W*S*- low rate adjusting screw.9 ischarge port ZS--W*S*- ZS--W*S*- low rate adjusting screw.9 ischarge port φ φ φ x. 9 9 (X) (X) φ x.9 (X) x. (X) (X) x. ubrication port / rain port (/) 9 9 ey width φ φ. ey width φ. ischarge port Sb- / pressure adjusting screw.... φ. ischarge port Sb- pressure ubrication adjusting screw port / rain port (/) ey width φ... φ ischarge port Sb- / ubrication pressure port / adjusting screw 99 rain port () ey width. +. φ φ 9. ischarge port Sb / () (.) (). () φ Suction port -X Suction port Sb- / pressure adjusting screw. 9 φ (.) Suction port Sb- pressure adjusting screw φ φ. () pressure adjusting screw (.) () Suction port.9 -X φ Suction port Sb- / 9 φ. Suction port. -X Suction port.9 Suction port -X Sb..9 iston umps Using the installed solenoid valve so it is continuously conducting current can cause the coil surface to become hot. o not touch the surface of the coil directly with your hands. o not use the solenoid valve to release the pressure in the hydraulic circuit. -9

39 iston umps erformance urves ZS--*- fficiency η,ηυ% 9 eneral erformance in Q min min Volume efficiency ηυ min verall efficiency η min {.} {} {} {} ischarge pressure a{kgf/cm } ischarge volume Q l/min nput in kw ischarge volume Q l/min rain volume R l/min ypical haracteristics at a ydraulic perating luid inematic Viscosity of mm /s ressure - low Rate haracteristics min min in R {.} {} {} {} ischarge pressure a{kgf/cm } min min Q nput in kw xial nput kw xial nput {.} {} {} {} ischarge pressure a{kgf/cm } Q= l/min Q= l/min Q= l/min Q= l/min xial input at full cutoff kw xial nput at ull utoff min min {.} {} {} {} ischarge pressure a{kgf/cm } oise evel d() min oise haracteristics min {.} {} {} {} ischarge pressure a{kgf/cm } fficiency η,ηυ% ZS--*- 9 eneral erformance in Q min min Volume efficiency ηυ verall efficiency η min min {.} {} {} {} ischarge pressure a{kgf/cm } ypical haracteristics at a ydraulic perating luid inematic Viscosity of mm /s ischarge volume Q l/min nput in kw ischarge volume Q l/min rain volume R l/min ressure - low Rate haracteristics in Q min min min R min {.} {} {} {} ischarge pressure a{kgf/cm } nput in kw xial nput kw xial nput {.} {} {} {} ischarge pressure a{kgf/cm } Q= l/min Q= l/min Q= l/min Q= l/min xial input at full cutoff kw xial nput at ull utoff min min {.} {} {} {} ischarge pressure a{kgf/cm } oise evel d() oise haracteristics min min {.} {} {} {} ischarge pressure a{kgf/cm } -

40 ZS--*- fficiency η,ηυ% 9 eneral erformance in Q min min Volume efficiency ηυ verall efficiency η min min ypical haracteristics at a ydraulic perating luid inematic Viscosity of mm /s {.} {} {} {} ischarge pressure a{kgf/cm } ischarge volume Q l/min nput in kw ischarge volume Q l/min rain volume R l/min ressure - low Rate haracteristics min min min min {} {} {} {} ischarge pressure a{kgf/cm } nput in kw xial nput kw xial nput {.} {} {} {} ischarge pressure a{kgf/cm } Q= l/min Q= l/min Q= l/min Q= l/min iston umps xial input at full cutoff kw xial nput at ull utoff min min {} {} {} {} ischarge pressure a{kgf/cm } oise evel d() oise haracteristics min min {.} {} {} {} ischarge pressure a{kgf/cm } ZS--*- fficiency η,ηυ% 9 eneral erformance Q in min min Volume efficiency ηυ verall efficiency η min min {.} {} {} {} ischarge pressure a{kgf/cm } ypical haracteristics at a ydraulic perating luid inematic Viscosity of mm /s ischarge volume Q l/min nput in kw ischarge volume Q l/min rain volume R l/min ressure - low Rate haracteristics in min min min min R {} {} {} {} ischarge pressure a{kgf/cm } Q nput in kw xial nput kw xial nput {.} {} {} {} ischarge pressure a{kgf/cm } Q= l/min Q= l/min Q= l/min Q= l/min xial input at full cutoff kw xial nput at ull utoff min min {.} {} {} {} ischarge pressure a{kgf/cm } oise evel d() oise haracteristics min min {.} {} {}{} ischarge pressure a{kgf/cm } -

41 iston umps * ZS--*- fficiency η,ηυ% xial input at eadhead kw 9 in {.} {} {} {} ischarge pressure a{kgf/cm } ZS--*- ZS--*- ZS--***- ist of Sealing arts (it odel umber : ZS-, : ZS-, : ZS-) art o. eneral erformance ischarge volume Q nput ross-sectional rawings art o. art ame art o. art ame ame Volume efficiency ηυ min min min verall efficiency η min xial nput at eadhead min min {.} {} {} {} ischarge pressure a{kgf/cm } ypical haracteristics at a ydraulic perating luid inematic Viscosity of mm /s ressure - low Rate haracteristics xial nput ischarge volume Q l/min nput in kw ischarge volume Q l/min rain volume R l/min oise evel d() ischarge volume Q nput in rain volume R {.} {} {} {} ischarge pressure a{kgf/cm } min min min min {.} {} {} {} ischarge pressure a{kgf/cm } roduct umber ZS- Q'ty ZS- Q'ty ZS- Q'ty Remarks 9 il seal R-9 9 R-9 R-9 S R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 9 ote R-9 9 R-9 R-9 R-9 R-9 ackup ring S ote R-9 R-9 S ote : ontact your agent about this type of. * ydraulic fluid input changed to /. (from ay ) min min oise haracteristics 9 9 nput in kw xial nput kw ody ase Shaft ylinder barrel Valve plate iston Shoe Shoe holder arrel holder Swash plate hrust bush Seal holder hrust plate Spring Spring S ontrol piston nd plug uide screw Spring holder Retainer eedle ey lug in rifice ut all bearing {.} {} {} {} ischarge pressure a{kgf/cm } Q= l/min Q= l/min Q= l/min Q= l/min eedle bearing il seal Snap ring Snap ring Snap ring ackup ring rifice lat philips head screw lug in olt lug late Washer olt ye bolt -

42 ZS--*- art o. art ame art o. art ame ody ase Shaft ylinder barrel Valve plate iston Shoe Shoe holder arrel holder Swash plate hrust plate Seal holder asket Spring Spring S ontrol piston nd plug uide screw hrust bush Spring holder Retainer eedle ey lug in onnector ut all bearing eedle bearing il seal Snap ring Snap ring Snap ring ackup ring olt lat philips head screw lug lug lug rifice late Washer olt lug ye bolt iston umps ZS- (it odel umber : ZS-) art o. ame Q'ty Size Remarks asket * ond il seal -.. R-9 S R-9 S R-9 S R-9 S R-9 S 9 R-9 S R-9 S ackup ring - S R-9 S arts marked by an asterisk "*" are not available on the market. onsult your agent. * ubrication port changed to /. (from ay ) ressure ompensator art o. art ame art o. art ame Valve body Spool Spring guide Sprint bearing Spring Retainer eedle valve Valve seat Spring djustment screw kit djustment screw ut ut Spring pin Retainer 9 ollar lug lug ut Socket head screw lug -

43 iston umps ist of Sealing arts art o. ame art umber ZS-, Q'ty ZS-, Q'ty Remarks - R-9 R-9 S R-9 R-9 R-9 9 R R-9 R-9 R-9 R-9 R-9 R-9 oot ounting it Z-*- Q R to φ oot ounting nstallation easurement hart -- Q R - d φ φ () - φd φd oot ounting it odel o. pplicable ump odel o. ccessories easurements (mm) olt Q'ty Washer Q'ty () Z-- ZS- - W Z-- ZS- - W ZS-, - WS-- oot ounting it odel o. Screw n ype lange it model o. pplicable ump odel o. lange lange art o. olt Washer - ZS- - - WS-- R-9 - ZS- - - WS-- R-9 - ZS- - - WS-- R-9 - ZS- - - WS-- R-9 Welded ype lange it model o. pplicable ump odel o. easurements (mm) () Q R (S) φ φ d φ d φ d Z Z--... φ.. -- (ote) ote he -- () dimension () is the value for the ZS-. his dimension becomes in the case of the ZS-. he -- () dimension () is the value for the ZS-. his dimension becomes in the case of the ZS-. See the -- on pages - and - to see what the Z-- looks like. iping lange it Screw n ype Welded ype S U lange lange art o. olt Washer - - WS-- R WS-- R WS-- R WS-- R-9 lange lange art o. olt Washer - ZS- - - WS-- R-9 - ZS- - - WS-- R-9 - ZS- - - WS-- R-9 - ZS- - - WS-- R-9 U lange lange art o. olt Washer - - WS-- R WS-- R WS-- R WS-- R-9 See page - for dimensions. he materials and hardness of the conform with S See page - for details on tightening torque. φd φ d () S Weight kg

44 Z SRS RR VU S U Z Series oad Sensitive Variable iston ump eatures q he Z Series load sensitive variable piston pump employs the semi-cylindrical swash plate that is part of the basic technology used by the VS series variable piston pump. o this it adds a hydrostatic bearing mechanism, valve plate, and other noise reducing mechanisms for operation to cm /rev a that is even quieter than that of VS Series pumps. w he pump body houses an electrohydraulic proportional control valve, compensator, and surge cutoff valve, which eliminates the need for superfluous piping. e he electro-hydraulic proportional control valve uses the proven force feedback system for improved hysteresis, repeatability, and response. r he ability to create a double pump configuration with an pump further expands the range of possible applications. iston umps Specifications ump System Specifications odel o. Z--*- - Z--*- - Z--*- - Z--*-- Z--*-- (ote ) Z--*-- Z--*-- ump apacity cm /rev aximum Working ressure a {kgf/cm } {} {} {} {} {} {} {} ote. an be used in combination with an pump to configure a fixed discharge pump. ote. he Z-- model number was changed to Z- -. ressure/low Rate ontrol System Specifications ressure ontrol System ressure ontrol Range a {kgf/cm } : to {. to.} : to {. to } : to {. to } Rated urrent m oil Resistance Ω ( ) ressure djustment Range a {kgf/cm } to {. to.} to {. to } to {. to } to {. to.} to {. to } to {. to.} to {. to } to {. to } to {. to.} to {. to } to {. to } to {. to.} to {. to } to {. to } to {. to.} to {. to } to {. to } to {. to.} to {. to } to {. to } low ontrol imit Range l/min ote Revolution Speed min in. ax. Weight kg ixed ischarge ump ote apacity cm /rev to. to. to. to. to. to. to. to. to. to. to. to.9 to. to.9 ressure a {kgf/cm } {} {} {} {} {} {} {} ote. aximum flow rate depends on the revolution speed. Values in the above table are for a speed of min - for the Z- to Z--, and min - for the Z--. Z-// port * ischarge port * port Z-- * ischarge port ysteresis % % max. ote low Rate ontrol System Valve ifferential ressure {} ote a {kgf/cm } Rated urrent m oil Resistance Ω ( ) ysteresis % % max. ote Suction port port Z- * * * ischarge port * Suction port ote. Value when a achi-ujikoshi special amplifier is used (with dithering). ote. ressure differential of pump discharge pressure (valve side) and load pressure (valve U side). ote. or information about power amplifiers, see pages - through -. port Suction port -

45 iston umps xplanation of model o. Z esign number : Z-, : Z- to : Z- uxiliary symbol ressure adjustment range (See specifications.),, Variable pump capacity (cm /rev),,,,,, ixed discharge pump capacity (cm /rev). to (See pump -.) ounting method : lange type mounting : oot type mounting ump size,,,, Z Series iston ump ontrol mechanism : oad response control andling ump nstallation and iping recautions zuse flexible couplings for connecting the pump shaft to the drive shaft, and prevent radial or thrust load from being applied to the pump shaft. xccentricity between the drive shaft and pump shaft should be no greater than.mm, with an eccentric angle error of or less. ceep the fitting length of couplings and pump shafts at least / the length of the coupling width. vuse a sufficiently rigid pump mounting base. bset pump suction side pressure to. a or more (suction port flow velocity less than m/sec). nraise part of the drain piping so it is above the topmost part of the pump body, and insert the return section of the drain piping into the hydraulic operating fluid. lso, observe the values in the following table in order to limit the drain back pressure to. a tem odel o. Z- Z- t least /" Z- ipe oint t least t least " Size /" ipe.. t least φ t least φ t least φ ipe m or less m or less m or less ength mount the pump so the pump shaft is oriented horizontally.,use of rubber hose is recommended in order to minimize noise and vibration. anagement of ydraulic perating luid zuse only good-quality hydraulic operating fluid with a kinematic viscosity during operation within the range of to mm /sec. ormally, you should use an R& type and wear-resistant type of SV to or equivalent. he optimum kinematic viscosity during operation is to mm /sec. xhe operating temperature range is to. When the oil temperature at startup is or less, run the pump at low pressure until the oil temperature reaches. crovide a suction strainer with a filtering grade of about μ ( mesh). rovide a return line filter of grade μm or less on the return line to the tank. (When the pump is used at a high pressure of a or greater, a filter of μm or less is recommended.) vanage hydraulic operating fluid so contamination is maintained at class S or lower. buse hydraulic operating fluid when the operating ambient temperature is in the range of to. nverter rive recautions zset the revolution speed within the range of the pump specification revolution speed. xhanging the revolution speed may also affect the pump performance curves. efore using the inverter, check if the pressure and motor load factor are within the range of use. Startup recautions zefore starting up the pump, fill the pump body with clean hydraulic operating fluid through the lubrication port. odel o. il mount cm Z- Z- Z- Z- Z- xheck to make sure that the rotation direction of the pump is the same as the rotation direction indicated by the arrow on the pump body. cir entering the pump or pipes can cause noise or vibration. t startup, set the pump discharge side to a noload state, and operate the pump in the inching mode to remove any air that might be in the pump or pipes. vquip an air bleed valve in circuits where it is difficult to release air before startup. (See " umps" on page -.) bo enable superior pressure and flow control, loosen the air vent when starting up the pump in order to release any air, and fill the inside of the solenoid with hydraulic operating fluid. You can change the position of the air vent by rotating its cover. nefore adjusting the manual adjusting screw from the first time or when there is no input current to the valve due to electrical malfunction or some other reason, you can control pump pressure and flow rate by rotating the manual adjusting screw. ormally, the manual adjusting screw should be returned completely to its original position and secured with the lock nut. -

46 nstallation imension rawings Z-- onnecting cord diameter φ to ir vent anual pressure adjusting screw Z-- anual flow rate adjusting screw ir vent φ onnecting cord diameter φ to anual pressure adjusting screw Z-- ir vent anual flow rate adjusting screw ir vent -x Suction port. ischarge port φ Sb-/. x ischarge port φ Sb- Relief valve pressure adjusting screw. port R / ischarge port Sb- port Rc /. port Rc / φ -x -x Suction port Relief valve pressure adjusting screw rain port Rc / ubrication port. 9 (Suction port position opposite side) (X) Relief valve pressure adjusting screw 9 ubrication port. (Suction port position opposite side) 9. (X) Suction port ir vent x. (Suction port position opposite side) rain port Rc/ rain port / 9 ir vent 9 ote ey width. +.. ote: φ a ote:b ey width φ... φ anual flow rate adjusting screw.. φ ey width φ 9. port Rc / anual pressure adjusting screw.. port Rc / (.).. 9 Single ump φ... φ. 9 φ ubrication port φ a.. Suction port Sb- /. Suction port Suction port Sb- b ouble ump with ixed low φ S b- / iston umps φ..9 x -

47 Z-- iston umps onnecting cord diameter φ to ir vent anual pressure adjusting screw 9 ischarge port φ Sb- / ir vent anual flow rate adjusting screw port Rc/ Relief valve pressure adjusting screw ubrication port -x (Suction port position dimension) (X) rain port / ey width φ... φ port Rc /. ubrication port. - φ Suction port Sb- / Suction port φ..9 -x Z-- port Rc / ir vent anual pressure adjusting screw ir vent port Rc / Relief valve pressure adjusting screw ubrication port 99 rain port ey width. () 9 φ 9 anual flow rate adjusting screw -x Suction port ischarge port φ Sb- / (Suction port position dimension) φ... φ port Rc /. () 9. () Suction port Sb- φ..9 -x -

48 erformance urves nput urrent ischarge Rate haracteristics ischarge rate Q l/min Z-- nput current m Z-- Z-- ischarge rate Q l/min ypical characteristics at hydraulic operating fluid kinematic viscosity of mm /s Z-- nput current m ischarge rate Q l/min Z-- nput current m iston umps ischarge rate Q l/min Z-- nput current m ischarge rate Q l/min Z--/ nput current m nput urrent ischarge ressure haracteristics ischarge pressure a (kgf/cm ) {} {} {.} nput current m eneral erformance ischarge rate Q l/min fficiency η,ηυ% 9 Z-- ischarge rate Q min Volume efficiency ηυ verall efficiency η nput in min min min {.} {} {} ischarge pressure a{kgf/cm } nput in kw ischarge rate Q l/min fficiency η,ηυ% 9 Z-- ischarge rate Q Volume efficiency ηv verall efficiency η nput in min min min min.. {.} {.} {} {} ischarge pressure a{kgf/cm } nput in kw ischarge rate Q l/min fficiency η,ηυ% Z-- min min Volume efficiency ηv 9 nput in {.} {} {} ischarge pressure a{kgf/cm } verall efficiency η min min nput in kw ischarge rate Q l/min fficiency η,ηυ% 9 Z-- Z-- Z-- Z-- ischarge rate Q Volume efficiency ηυ verall efficiency η nput in min min min min nput in kw {} {} {} ischarge pressure a{kgf/cm } ischarge rate Q l/min fficiency η,ηυ% 9 ischarge rate Q min min Volume efficiency ηυ verall efficiency η nput in {} {} {} ischarge pressure a{kgf/cm } min min nput in kw ischarge rate Q l/min fficiency η,ηυ% 9 ischarge rate Q Volume efficiency ηυ verall efficiency η nput in min min min min {} {} {} ischarge pressure a{kgf/cm } nput in kw ischarge rate Q l/min fficiency η,ηυ% 9 ischarge rate Q Volume efficiency ηυ verall efficiency η nput in min min min min {} {} {} ischarge pressure a{kgf/cm } nput in kw -9

49 iston umps ross-sectional rawings Z-- *- 9 Z-/-** art o. art ame art o. art ame 9 9 ody ase Shaft ylinder barrel Valve plate iston Shoe Shoe holder arrel holder Swash plate hrust bush Seal holder asket Spring Spring S ontrol piston eedle ey ut Retainer lug all bearing eedle bearing 9 9 art o. art ame art o. art ame 9 9 ody ase Shaft ylinder barrel Valve plate iston Shoe Shoe holder arrel holder Swash plate hrust plate Seal holder asket Spring Spring S ontrol piston nd plug uide screw hrust bush Spring holder Retainer eedle ey il seal Snap ring Snap ring Snap ring ackup ring in Screw Screw Screw lug lug lug Spring holder uide ydraulic fluid input seal rifice in rifice onnector ist of Sealing arts (it odel umber SS-) art o. art ame Q'ty Size Remarks * asket S-- ond il seal -.. R-9 S 9 R-9 S R-9 S ackup ring - S R-9 S arts marked by an asterisk "*" are not available on the market. onsult your agent. lug in onnector ut all bearing eedle bearing il seal Snap ring Snap ring Snap ring ackup ring olt Screw lug lug in late Screw ist of Sealing arts (it odel umber ; ZS-, ; ZS-) art Z- Z- art ame o. Size Q'ty Size Q'ty Remarks asket * * ond il seal R-9 9 R-9 S R-9 R-9 S R-9 R-9 S 9 R-9 R-9 S R-9 R-9 S ackup ring - - S R-9 9 R-9 S arts marked by an asterisk "*" are not available on the market. onsult your agent. * ubrication port changed to /. (from ay ) -

50 Z-/-* ist of Sealing arts (it odel umber : ZS-, : ZS-) art o. art ame Z- Z- Size Q'ty Size Q'ty Remarks il seal R-9 R-9 S R-9 R-9 S R-9 R-9 S R-9 R-9 S R-9 R-9 S 9 R-9 R-9 S R-9 R-9 S R-9 9 R-9 S R-9 R-9 S ackup ring - - S * ubrication port changed to /. (from ay ) oot ounting it art o. art ame art o. art ame ody ase Shaft ylinder barrel Valve plate iston Shoe Shoe holder arrel holder Swash plate hrust bush Seal holder Sleeve Spring Spring S ontrol piston nd plug uide screw Spring holder hrust plate Retainer eedle ey lug in rifice ut all bearing eedle bearing il seal 9 9 Snap ring Snap ring Snap ring ackup ring rifice Screw lug in olt lug late Washer olt ye bolt lectro-hydraulic proportional valve iston umps ump odel o. ounting odel o. Z- -- Z- Z- -- Z- Z- Z-- ote: See pages - and - for information about mounting methods. iping lange it lange it model o. pplicable ump lange odel o. lange art o. olt Washer --- Z--/ - - WS-- R Z WS-- R-9 Z--- Z WS-- R Z WS-- R-9 Z--- Z--/ - - WS-- R-9 U lange lug lange art o. olt Washer - - WS-- R-9 -/ - - WS-- R-9 -/ - - WS-- R-9 -/ - - WS-- R-9 -/ - - WS-- R-9 -/ ote. See page - for dimensions.. he materials and hardness of the conform with S.. See page - for details on tightening torque. -

51 VS SRS S VR VU V U VS Series Small Variable Volume Vane ump eatures q igh efficiency operation with minimal power loss ll the performance of the original new VR series mechanisms combines with precision machining for a pump that minimizes power loss, especially at full cutoff. wquiet operation ournal bearings with a proven record on pumps plus new suction and discharge port configurations reduce operating noise and deliver quiet operation with minimal vibration, even in the Specifications odel o. VS-() apacity cm /rev andling zhe direction of rotation for this pump is clockwise (rightward) when viewed from the shaft side. xrain piping must be direct piping up to a point that is below the tank fluid level, and back pressure due to pipe resistance should not exceed.a. cwhen adjusting pressure, pressure is increased by clockwise (rightward) rotation of the adjusting screw and decreased by counterclockwise (leftward) rotation. vwhen adjusting the flow rate, the flow rate is decreased by clockwise (rightward) rotation of the adjusting screw and increased by counterclockwise (leftward) rotation. he graph on the right provides general guidelines for the relationship between the rotation angle of the flow rate adjusting screw and the noload discharge rate. bactory efault -Q Settings (Standard odel) low Rate Setting = aximum flow rate for model as indicated in the catalog ressure Setting = ressure shown in table below actory efault ressure Settings a{kgf/cm } :. {.} :. {.} :. {.} high-pressure range. cm /rev l a e ompact and simple design, easy operation ompact and quiet, VS Series variable vane pumps are economical and easy to handle. simple design allows use in a wide range of hydraulic systems. r recise characteristics, prompt response rompt response at both - and - ensures instantaneous, stable, o-load ischarge Rate l/min ressure djustment Range a {kgf/cm } to {. to.}. to. {. to.} to {. to.} high-precision operation. t Solidly built for high efficiency and long life VS Series pumps are built to last, with a design that incorporates years of experience and know-how. Specially selected materials and skilled workmanship provide outstanding durability along with stable, high-efficiency operation. llowable eak ressure a {kgf/cm } Revolution Speed min min - min - min - min - in. ax... owever: Q=q n Q : o-load ischarge Rate (l/min) q : apacity (cm /rev) : Revolution Speed min ump apacity q cm /rev low djustment Rotation ngle ( θ ) and ump apacity (q) 9 Rotation ngle θ (lockwise) he values indicated above are at maximum pump discharge volume with the flow volume adjusting screw at the position. he broken line shows the flow volume adjustment range lower limit value. {} Weight kg :. :. nhrust Screw he thrust screw is precisely adjusted at the factory during assembly. ever touch the thrust screw. See callout o in the cross-section diagram on page -. mnitial peration efore operating the pump for the first time, put the pump discharge side into the no-load state and then repeatedly start and stop the motor to bleed all air from inside the pump and the suction piping. fter confirming that the pump is discharging oil, continue the no-load operation for at least minutes to discharge all the air from the circuit.,or the hydraulic operating fluid, use an R& type and wear-resistant type of S V to or equivalent (viscosity index of at least 9). Use hydraulic operating fluid that provides kinematic viscosity during operation in the range of to mm /s..he operating temperature range is to. When the oil temperature at startup is or less, perform a warm-up operation at low pressure until the oil temperature reaches. Use the pump in an area where the temperature is within the range of to. (ontinued on following page) Vane umps -

52 Vane umps Suction pressure is -. to +.a (-. to +.kgf/cm ), and the suction port flow rate should to greater than m/sec. void pulley, gear, and other drive systems that impart a radial or thrust load on the end of the pump shaft. ount the pump so its pump shaft is oriented horizontally. rovide a suction strainer with a filtering grade of about μm ( mesh). or the return line to the tank, use a μm line filter. anage hydraulic operating fluid so contamination is maintained at class S or lower. ake care to avoid contamination with water or other foreign matter, and watch for discoloration. Whitish fluid indicates that air has contaminated the fluid, and brownish fluid indicates the fluid is dirty. t startup, repeat the inching operation (start-stop) to prime the pump and bleed air from the pump and pipes. (his pump has no fluid supply port.) quip an air bleed valve in circuits where it is difficult to bleed air before startup. See page - for more information. When centering the pump shaft, eccentricity with the motor shaft should be no greater than.mm. he angle error should be no greater than. nverter rive recautions zset the revolution speed within the range of the pump specification revolution speed. xhanging the revolution speed may also affect the pump performance curves. efore using the inverter, check if the pressure and motor load factor are within the range of use. xplanation of model o. VS * * esign number low ate characteristics Ring size ump size: :l/min ( min - no load) nstallation imension rawings VS---*- oot ounting ype ressure adjustment range : to a {. to.kgf/cm } :. to.a {. to.kgf/cm } : to a {. to.kgf/cm } : onstant discharge rate type ounting method : oot type mounting : lange type mounting ump ype: VS Series ompact Variable Vane ump ressure adjusting screw R. Rc / R Rc / U Rc / U.. φ () X ± φ. to φ low rate adjusting screw ote) oot ounting it: --. -

53 VS---*- lange ounting ressure adjusting screw R U erformance urves.. φ.. Width across flats. low rate adjusting screw. φ X X Rc / R Rc / U (-U port dimension) Rc / ypical characteristics at hydraulic operating fluid kinematic viscosity of mm /s Vane umps min Q min xial nput t ull utoff. ischarge rate Q l/min min min {.} {.} {.} {.} {.} {.} {.} ischarge pressure a{kgf/cm }... oise haracteristics nput in (kw) easurement osition: meter behind pump xial input at full cutoff kw.... min min {.} {.} {.} {.} {.} {.} {.} oise level d() min min {.} {.} {.} {.} {.} {.} {.} ischarge pressure a{kgf/cm } ischarge pressure a{kgf/cm } -

54 ross-sectional rawings VS--*- 9 Vane umps 9 R 9 ist of Sealing arts Seal it: VS- pplicable ump odel: VS-/-*- art o. art ame art umber Q'ty S-(R-9) 9 S-(R-9) S- R-- R-- il seal --V ote). il seals are manufactured by ippon il Seal ndustry o. td. ().. he materials and hardness of the conform with S. Uni-pump Specifications Understanding odel umbers USV. art o. 9 umber of motor poles: () otor output (kw).,.,. ressure adjustment range :. to.a {. to.kgf/cm } :. to.a {. to.kgf/cm } low characteristics esign number : onstant discharge type otor mounting method : oot type mounting ump size : VS ump ype: VS Series Uni-pump art ame ody over () over () Shaft am ring Vane late (S) late () hrust screw Screw iston older Spring ut ap art o. 9 9 ( mark standard compliant) :. to.a {. to.kgf/cm } art ame ey ut Screw earing Screw Screw il seal Snap ring in ameplate aximum Working ressure a{kgf/cm } aximum low Rate l/min z z {.}.. Standard drive motor is the fully enclosed fan-cooled type (.kw) and type (.,.kw).. Standard voltage for drive motor is V, / z or V, z.. Standard terminal box is terminal (right side viewed from pump). -

55 otor Selection urves z areas z areas ischarge rate Q l/min USV--* kw.kw.kw {.} {.} {.} {.} {} {.} {.} ischarge pressure a{kgf/cm } nstallation imension rawings Suction port Rc/ ump model (nameplate) -. ischarge port Rc/ φ erminal box terminal (Round drain hole) (he height to the topmost part of the hanging bolt) ressure adjusting screw X. X. rain port Rc/ low rate adjusting screw..kw lectric drive conceptual diagram anging bolt R ow to select a motor he area under a motor output curve in the graph to the left is the operating range for that motor under the rated output for that motor. xample: o find the motor that can produce pressure of.a and a discharge rate of. l/min. Selection rocess Since the intersection of the two broken lines from a pressure of.a and discharge rate of. l/min intersect in the area under the.kw curve, it means that a.kw motor should be used. * Select a uni-pump that has a pressure and flow rate that is within the range of the drive so that the drive will not overload. * When the startup current of the uni-pump becomes higher for the motor, breakers may need to be changed..kw is not changed from. S otor rating plate (erminal box side) Rotation direction plate Uni-pump (ame sticker) (erminal box side) View R: ounting foot hole shape ( locations) Vane umps USV--*-.-- Suction port Rc/ ump model (nameplate) φ (Round drain hole) ischarge port Rc/ erminal box terminal -. (he height to the topmost part of the hanging bolt) ressure adjusting screw X. X. rain port Rc/ low rate adjusting screw. anging bolt R otor rating plate (erminal box side) S Rotation direction plate Uni-pump (ame sticker) (erminal box side) View R: ounting foot hole shape ( locations) Uni-pump USV otor imensions [mm] S φ rame o. utput Weight kw kg ( poles) USV USV USV USV USV USV * See page - for the characteristics of the drive motor for the unipump (domestic standard rating). * he.kw drive motor does not have hanging bolts. -

56 Vane umps eatures q Stable, highly efficient operation up to a biased piston that minimizes ring vibration and leak-free pressure balance construction enables highly efficient highpressure operation, and very stable performance up to a. w igh-precision instantaneous response Response has been improved by a special bias piston mechanism. rompt response at both - and - ensures instantaneous, stable, Specifications Single ump odel o. VR-()-- VR-()-- ouble ump andling zrotation irection he direction of rotation is always is clockwise (rightward) when viewed from the shaft side. xrain rain piping must be direct piping up to a point that is below the tank fluid level, and back pressure due to pipe resistance should not exceed.a. When using a pump that has drain ports at two locations, use the drain port that is higher after the pump is installed. high-precision operation. e Silent operation, even in the high pressure range Quiet journal bearings, a bias piston that allows a -point support system, and new suction and discharge port shapes all contribute to minimize operation noise. Silent, vibration-free operation is ensured, even in the high pressure range. rreduced power loss combination of -original mechanical innovations and precision machining create a pump that minimizes power loss, especially at full cutoff. t Solid construction stands up to harsh operating conditions he tough and rugged construction of this pump is made possible by a long history of quality pump designs. his, in combination with specially selected materials and skilled workmanship, provides outstanding durability. apacity o-load ischarge Rate l/min ressure djustment llowable eak Revolution Speedmin - Weight Range ressure cm /rev min - min - min - min - kg a{kgf/cm } a{kgf/cm } in. ax.. to. {. to.} to {. to.} {}.. 9. to. {. to } 9 to {9. to } {}. to. {. to.} to {. to.} cischarge Volume djustment he discharge flow rate is decreased by clockwise (rightward) rotation of the discharge rate adjusting screw, and increased by counterclockwise (leftward) rotation. oosen the lock nut before making adjustments. fter adjustment is complete, re-tighten the lock nut. he graph on the right provides general guidelines for the relationship between the rotation angle of the flow rate adjusting screw and the no-load discharge rate. ump capacity cm /rev {} odel o. Vent Side Shaft Side Vent Side Shaft Side oot ounting ype (lange ounting ype) VR-()--- VR-()--- VR-()--- VR-()--- VR-()--- VR-()--- VR S SRS VR VU V U VR esign Series Variable Volume Vane ump ischarge Rate l/min ressure djustment Range a{kgf/cm }. to. {. to.} to {. to.}. to. {. to.} to {. to.} ischarge Rate l/min l/min a l/min a ressure djustment Range a{kgf/cm }. to. {. to.} llowable eak ressure a{kgf/cm } to {. to.} {} to {. to.}. to. {. to.} to {. to.} {} to {. to.} low djustment Rotation ngle ( θ ) and ump apacity (q) VR--*- 9 ote). he discharge rate is the value at min no-load.. he change from design number to design number represents a change in the shaft key width from.mm to.mm. his means that when using a.mm key coupling, you need to use a stepped key (V-) or add a new key groove at.. VR--*- Revolution Speedmin in. ax. Weight kg 9 Rotation ngle θ (clockwise) (ontinued on following page) -

57 owever: Q=q n Q : o-load ischarge Rate Q l/min q : Volume cm /rev : Revolution Speed min he broken line shows the flow volume adjustment range lower limit value. ote) he values indicated above are at maximum discharge volume with the flow volume adjusting screw at the position. vressure djustment ressure is decreased by clockwise (rightward) rotation of the discharge rate adjusting screw, and increased by counterclockwise (leftward) rotation. xplanation of model o. Single pump VR esign number ouble pump VR bactory efault -Q Settings (Standard odel) low Rate Setting = aximum flow rate for model as indicated in the catalog ressure Setting = ressure shown in table to the right nhrust Screw he thrust screw is precisely adjusted at the factory during assembly. ever touch the thrust screw. See in the crosssection diagram on page -. mnitial peration efore operating the pump for the first time, put the pump discharge low rate characteristics : onstant discharge rate type ounting method : oot type mounting : lange type mounting ump size: ressure adjustment range :. to.a {. to.kgf/cm } : to a {. to.kgf/cm } :. to.a {. to kgf/cm } : 9 to a {9. to kgf/cm } ote: Ring size: n the case of, maximum setting pressure is pa (.kgf/cm ). Ring size : l/min } at min : l/min - ump ype: VR Series Variable ischarge Rate Vane ump esign number Shaft side flow rate characteristics (based on single pump) Shaft side ring size (based on single pump) ead side flow rate characteristics (based on single pump) ump size: Shaft side pressure adjustment range :. to.a {. to.kgf/cm } : to a {. to.kgf/cm } ead side pressure adjustment range :. to.a {. to.kgf/cm } : to a {. to.kgf/cm } ead side ring size (based on single pump) ounting method : oot type mounting : lange type mounting ump ype: VR Series Variable ischarge Rate Vane ump actory efault ressure Settings a{kgf/cm } :.{.} : {.} :.{.} : 9 {9.} side into the no-load state and then repeatedly start and stop the motor to bleed all air from inside the pump and the suction piping. fter confirming that the pump is discharging oil, continue the noload operation for at least minutes to discharge all the air from the circuit. rovide an air bleed valve in circuits where it is difficult to bleed air before startup.,sub late Use the following table for specification when a sub plate is required. or detailed dimensions, see pages - through -9. ump odel o. Sub late umber otor(kw) VR--*- VR--*- V---. to. V---. to. V--Y-. to. V--Y-. to. VR--** V--- -**- V--X-. to..or the hydraulic operating fluid,use type S V or equivalent (viscosity index of at least 9) for pressures of a or lower, and type S V or equivalent (viscosity index of at least 9) for pressures greater than. he operating temperature rangeis to. When the oil temperature at startup is or less, perform a warm-up operation at low pressure until the oil temperature reaches. Use the pump in an area where the temperature is within the range of to. Suction pressure is -. to+.a (-. to +.kgf/cm ), and the suction port flow rate should be to greater than m/sec. void pulley, gear, and other drive systems that impart a radial or thrust load on the end of the pump shaft. ount the pump so its pump shaft is oriented horizontally. rovide a suction strainer with a filtering grade of about μm ( mesh). or the return line to the tank, use a μm line filter. (ontinued on following page) Vane umps -

58 Vane umps anage hydraulic operating fluid so contamination is maintained at class S or lower. ake care to avoid contamination with water or other foreign matter, and watch out for discoloration. Whitish fluid indicates that air has contaminated the fluid, and brownish fluid indicates the fluid is dirty. ontact your agent about using water and glycol-based hydraulic operating fluids. t startup, repeat the inching operation (start-stop) to prime the pump nstallation imension rawings VR--**- ressure adjusting screw 9. and bleed air from the pump and pipes. (his pump has no fluid supply port.) quip an air bleed valve in circuits where it is difficult to bleed air before startup. See page - for more information. When centering the pump shaft, eccentricity with the motor shaft should be no greater than.mm. Use a pump mounting base of sufficient rigidity. he angle error should be no greater than. 9. low rate adjusting screw φ Rc / R (, type only). ±.. 9. nverter rive recautions zset the revolution speed within the range of the pump specification revolution speed. xhanging the revolution speed may also affect the pump performance curves. efore using the inverter, check if the pressure and motor load factor are within the range of use. 9.. φ ( φ ) - R ( φ) - U ( φ) -. ±. VR--**- ressure adjusting screw 9.. low rate adjusting screw 9 Rc / R (, type only) R port position Rc / R Rc / to φ Rc / U 9 ± φ 9.. φ 9 ±. uxiliary View -

59 VR--*-*- ressure adjusting screw low rate adjusting screw φ to φ Vane umps. ±. to ( φ ) - to R ( φ) - to U ( φ) -.± VR--*-*- ressure adjusting screw low rate adjusting screw to Rc / to φ hole ±. U to Rc / 9 ±. R to Rc / -9

60 erformance urves ypical characteristics at hydraulic operating fluid kinematic viscosity of mm /s VR-*-- VR-*-- VR-*-- Vane umps ischarge rate Q l/min ischarge rate Q l/min min min min min Q in.... nput in kw min min min min Q in {.} {.} {.} {.} {.}{.} {.} {.} {.} {.} {.} {} {.} {.} {.} {.} {} ischarge pressure a{kgf/cm } ischarge pressure a{kgf/cm } ischarge pressure a{kgf/cm } min min min VR-*-- min Q in min min min in min Q min min {.} {.} {} {} {.} {.} {.} {.} {.} {.} {.} {.} {.} {.} {.} {} {.} {.} ischarge pressure a{kgf/cm } ischarge pressure a{kgf/cm } ischarge pressure a{kgf/cm } xial nput t ull utoff nput in kw ischarge rate Q l/min ischarge rate Q l/min VR-*-- oise haracteristics..... nput in kw nput in kw ischarge rate Q l/min ischarge rate Q l/min min min in min min min min Q in Q VR-*-- nput in kw nput in kw xial input at full cutoff kw.. min... {.} {.} {} {} ischarge pressure a{kgf/cm } min oise level d() easurement osition: meter behind pump min min.. {.} {.} {} {} ischarge pressure a{kgf/cm } -

61 ross-sectional rawings VR--** Vane umps ist of Sealing arts Single ump art o. pplicable ump odel o. Seal it umber VR--*- VS- art ame art umber Q'ty acking V- il seal S- 9 ackup ring V- ackup ring V- S() R-- R-- R-- R-- S- S-9 R-- R-- ote). il seals are manufactured by ippon il Seal ndustry o. td. ().. he materials and hardness of the conform with S.. or VR--*-, the seal kit number becomes VS-, without the and s. art o. 9 9 art ame ody () ody () over over Shaft Rotor Ring Vane late (S) late () iston Spring Screw ut iston older dapter acking earing (S) earing () hrust screw ut ey Screw art o. 9 9 art ame in Spring pin il seal Snap ring ackup ring ackup ring Screw Screw ut lug Screw ey ameplate ap in ouble ump art o. pplicable ump odel o. Seal it umber VR--*-*- VS- art ame art umber Q'ty acking V- il seal S- 9 ackup ring V- ackup ring V- S() R-- R-- R-- R-- S- S-9 R-- R-- ote). il seals are manufactured by ippon il Seal ndustry o. td. ().. he materials and hardness of the conform with S.. or VR--*-*-, the seal kit number becomes VS-, without the and s. -

62 VR--**-**- Vane umps Uni-pump Specifications Understanding odel umbers Specifications ( mark standard compliant) Single ump ouble ump UV. UV. odel o. UV- UV- esign number umber of motor poles: () otor output (kw).,.,.,. ressure adjustment range :. to.a {. to.kgf/cm } :. to.a {. to.kgf/cm } esign number umber of motor poles: () otor output (kw).,.,. Shaft side pump pressure adjustment range :. to.a {. to.kgf/cm } :. to.a {. to.kgf/cm } Shaft side pump flow rate characteristics : onstant discharge type low characteristics : onstant discharge type Ring size one : l/min Shaft side pump ring size at min - : l/min } one: l/min at min - : oot type mounting : l/min } ump size : VR- () ump ype: VR () Series Uni-pump aximum Working ressure a{kgf/cm } {.} {.} aximum low Rate l/min (*) ead side pump pressure adjustment range: Same as the shaft side pump ead side pump flow rate characteristics : onstant discharge type ead side pump ring size one: l/min at min - : l/min } : oot type mounting ump size : VR- () ump ype: VR () Series Uni-pump aximum low Rate l/min (*) z z z z

63 otor selection curves z areas z areas ischarge rate Q l/min.kw.kw.kw {.} {.} {.} {.} {} {.} {.} ischarge pressure a{kgf/cm } * Select a uni-pump that has a pressure and flow rate that is within the range of the drive so that the drive will not overload. * When the startup current of the uni-pump becomes higher for the motor, breakers may need to be changed. Selecting a motor he area under a motor output curve in the graph to the left is the operating range for that motor under the rated output for that motor. xample: o find the motor that can produce pressure of.a and a discharge rate of l/min. Selection rocess Since the intersection of the two broken lines from a pressure of.a and discharge rate of l/min intersect in the area under the.kw curve, it means that a.kw motor should be used. n the case of a double pump configuration, select a motor that is larger than the total power required by both pumps. Vane umps nstallation imension rawings UV- anging bolt (.kw only) Rc/(). Rc/(U on opposite side) anging bolt (-U port dimension) otor rating plate (erminal box side) Rotation direction plate (.kw only) ressure adjusting screw Width across flat ump model (nameplate) Uni-pump φ (Round drain hole) erminal box terminal -. low rate adjusting screw Rc/(R).kW lectric drive conceptual diagram.,.kw lectric drive conceptual diagram otor imensions [mm] S φ UV Standard drive motor is the fully enclosed fan-cooled type.. Standard voltage for drive motor is V, / z or V, z.. Standard terminal box is terminal (right side viewed from pump).. See page - for the characteristics of the drive motor for the unipump (domestic standard rating). R S Uni-pump (ame sticker) (erminal box side) View R: ounting foot hole shape ( locations) rame o. utput Weight kw kg ( poles) UV UV UV UV UV UV UV UV UV

64 UV- Vane umps anging bolt (.kw only) (.kw only) ressure adjusting screw Width across flat ump model (nameplate) (-U port dimension) anging bolt φ (Round drain hole) erminal box terminal -. Rc/() Rc/(U on opposite side) low rate adjusting screw Rc/(R).kW lectric drive conceptual diagram.kw lectric drive conceptual diagram R otor rating plate (erminal box side) S Rotation direction plate Uni-pump (ame sticker) (erminal box side) View R: ounting foot hole shape ( locations) Uni-pump UV otor imensions [mm] S φ rame o. utput Weight kw kg ( poles) UV UV UV UV UV UV UV UV UV UV UV Standard drive motor is the fully enclosed fan-cooled type.. Standard voltage for drive motor is V, / z or V, z.. Standard terminal box is terminal (right side viewed from pump).. See page - for the characteristics of the drive motor for the unipump (domestic standard rating). -

65 VR SRS VR VU V U VR esign Series Variable Volume Vane ump to l/min a he new design number was created by modifying some of the components of old design numbers and, and the new design installation compatible with the old design. eatures qnergy efficient, economical operation. wuilt-in high-precision temperature compensation mechanism. ehe ring is displaced by a spring, and a rise in pressure automatically moves it to the center to make the discharge rate zero. rrelief valve and unloading valve can be eliminated from the circuit. tt was possible to reduce the size of the unit because there was no increase of proportional input to pressure which prevented increases in the temperature of the fluid. yew design for lower noise and improved durability. Vane umps Specifications Single ump odel o. VR-() apacity cm /rev.9.9. o-load ischarge Rate (l/min) ressure djustment Range a{kgf/cm } llowable eak ressure a Revolution Speed min min min min min {kgf/cm } in. ax... to {. to.}. to. {. to.} to {. to.} {} Weight kg VR-() to {. to.}. to. {. to.} to {. to.} {} ouble ump odel o. Vent Side Shaft Side Vent Side Shaft Side oot ounting ype (lange ounting ype) ischarge Rate l/min ressure djustment Range a{kgf/cm } ischarge Rate l/min ressure djustment Range a{kgf/cm } llowable eak ressure a{kgf/cm } Revolution Speed min VR-()--- to {. to.} to VR-()---. to. {. to.} {. to.} {} VR-()--- to {. to } :. VR-()---. to.. to. {. to.} :.9 VR-()--- {. to.} to {. to } {} VR-()--- to {. to } to {. to } {} ote). he discharge rate is the value at min - no-load.. n addition to this model, the V Series (maximum working pressure: a) high-pressure variable vane pump is also available. See page - for more information.. he change from VR- Series design number to design number represents a change in the shaft key width from.mm to.mm. his means that when using a.mm key coupling, you need to use a stepped key (V-) or add a new key groove at... here is no change in the mounting method with the change from the VR- size design number and VR- design number to design number. in. ax. Weight kg -

66 Vane umps xplanation of model o. Single ump Single ump esign number low characteristics : onstant discharge type Ring size ressure adjustment range : to a {. to.kgf/cm } :. to.a {. to.kgf/cm } : to a {. to.kgf/cm } ouble ump ouble ump VR VR esign number Shaft side pressure adjustment range : to a {. to.kgf/cm } :. to.a {. to.kgf/cm } : to a {. to kgf/cm } Shaft side flow rate characteristics : onstant discharge rate type Shaft side ring size ounting method : oot type mounting : lange type mounting ump size, ump ype: VR Series Variable ischarge Rate Vane ump ead side pressure adjustment range ead side flow rate characteristics ead side ring size ounting method : oot type mounting : lange type mounting Shaft side pump size ead side pump size ump ype: VR Series Variable ischarge Rate Vane ump andling zrotation irection he direction of rotation is always is clockwise (rightward) when viewed from the shaft side. xrain rain piping must be direct piping up to a point that is below the tank fluid level, and back pressure due to pipe resistance should not exceed.a. cischarge Volume djustment he discharge flow rate is decreased by clockwise (rightward) rotation of the discharge rate adjusting screw, and increased by counterclockwise (leftward) rotation. oosen the lock nut before making adjustments. fter adjustment is complete, re-tighten the lock nut. he graph below provides general guidelines for the relationship between the rotation angle of the flow rate adjusting screw and the no-load discharge rate. ump capacity q cm /rev low djustment Rotation ngle ( θ ) and ump apacity (q) VR---*- VR---*- owever: Q : o-load ischarge RateQl/min q : Volume cm /rev : Revolution Speed min vressure djustment ressure is decreased by clockwise (rightward) rotation of the discharge rate adjusting screw, and increased by counterclockwise (leftward) rotation. bactory efault -Q Settings (Standard odel) low Rate Setting = aximum flow rate for model as indicated in the catalog ressure Setting = ressure shown in table to the rightn nnitial peration efore operating the pump for the first time, put the pump discharge side into the no-load state and then repeatedly start and stop the motor to bleed all air from inside the pump and the suction piping. fter confirming that the pump is discharging oil, continue the no-load operation for at least minutes to discharge all the air from the circuit. ote) he values indicated above are at maximum pump discharge volume with the flow volume adjusting screw at the position. he broken line shows the flow volume adjustment range lower limit value. actory efault ressure Settings a{kgf/cm } : {.} :.{.} : {.} (rovide an air bleed valve in circuits where it is difficult to bleed air before startup.) msub late When a sub plate is required, specify a sub-plate type from the table in the installation dimension diagram.,or the hydraulic operating fluid, use an R& type and wear-resistant type of S V to or equivalent (viscosity index of at least 9). Use hydraulic operating fluid that provides kinematic viscosity during operation in the range of to mm /s..he operating temperature range is to. When the oil temperature at startup is or less, perform a warm-up operation at low pressure and low speed until the oil temperature reaches. Use the pump in an area where the temperature is within the range of to. Suction pressure is -. to +.a (-. to +.kgf/cm ), and the suction port flow rate should be to greater than m/sec. 9 Rotation angle θ (clockwise) -

67 void pulley, gear, and other drive systems that impart a radial or thrust load on the end of the pump shaft. ount the pump so its pump shaft is oriented horizontally. rovide a suction strainer with a filtering grade of about μm ( mesh). or the return line to the tank, use a μm line filter. anage hydraulic operating fluid so contamination is maintained at class S or lower. ake care to avoid contamination with water and other foreign matter, and watch out for discoloration. Whitish fluid indicates that air has contaminated the fluid, and brownish fluid indicates the fluid is dirty. t startup, repeat the inching operation (start-stop) to prime the pump and bleed air from the pump and pipes. (his pump has no fluid supply port.) quip an air bleed valve in circuits where it is difficult to bleed air before startup. See page - for more information. When centering the pump shaft, eccentricity with the motor shaft should be no greater than.mm. Use a pump mounting base of sufficient rigidity. he angle error should be no greater than. nverter rive recautions zset the revolution speed within the range of the pump specification revolution speed. xhanging the revolution speed may also affect the pump performance curves. efore using the inverter, check if the pressure and motor load factor are within the range of use. Vane umps nstallation imension rawings VR--*- (oot ounting) low rate adjusting screw. h.9 Sub-plate Rc Y (pposite side) φ φ R Rc / (pposite side) ote: Sub-plate is not provided. ust be provided separately if needed φ.. 9. φ ressure adjusting screw mounting bolt U Rc Z U Rc Z (lug closed before shipping) Sub late umber Weight kg h Y Z otor utput kw() V---.. / /. to. V--Y- / / R Rc / (lug closed before shipping) V / /. to. V--Y- / / Rc Y (lug closed before shipping) VR--*- (lange ounting) - φ x. counterbore φ holes low rate adjusting screw Rc / 9 U Rc / 9.. φ φ. 9. R Rc / φ ressure adjusting screw -

68 Vane umps VR--*- (oot ounting) low rate adjusting screw mounting bolt. h Rc Y Sub-plate model number V--- Sub-plate model number V--*-.. φ R -Rc / φ ressure adjusting screw U Rc / ote: Sub-plate is not provided. ust be provided separately if needed. Sub late umber Weight kg h Y otor utput kw() V to. V V--Z- ¼ pplicable ump odel o. VR--*- ( Rc Y) losed plug φ x. counterbore φ. holes VR--*- (lange ounting) low rate adjusting screw 9... φ.... φ φ φx counterbore φ. holes. U Rc / ressure adjusting screw R Rc / Rc -

69 VR--*- (oot ounting) -flow rate adjusting screw pressure adjusting screw φ ±. to.. φ mounting bolt Vane umps Rc (pposite side) U Rc Z (pposite side) R Rc / (pposite side) - φx counterbore φ holes R Rc / (lug closed before shipping) 9. U Rc Z ote: Sub-plate is not provided. ust be provided separately if needed. Sub late umber Z V--- / V--X- / Weight kg pplicable ump odel o.. VR--*-*- ( Rc ) lug closed before shipping VR--*-*- (lange ounting) φx. counterbore φ holes -flow rate adjusting screw φ φ φ -Rc / 9 U -Rc / 9. -pressure adjusting screw R -Rc / -9

70 erformance urves ypical characteristics at hydraulic operating fluid kinematic viscosity of mm /s Revolution Speed min min VR--- VR--- VR--- Vane umps ischarge rate Q l /min Q in.. {} {.}{.} {.}... ischarge pressure a{kgf/cm } nput in kw ischarge rate Q l /min Q in {}{.}{.}{.}{.}{.}{.} ischarge pressure a{kgf/cm } nput in kw ischarge rate Q l /min Q in {.}{.}{.}{.} {} {.}{.} ischarge pressure a{kgf/cm }... nput in kw ischarge rate Q l /min VR--- Q in.. {} {.} {.} {.} ischarge pressure a{kgf/cm }... nput in kw ischarge rate Q l /min VR--- Q in..... {} {.}{.}{.}{.}{.}{.} ischarge pressure a{kgf/cm }... nput in kw ischarge rate Q l /min VR--- Q.. in... {.}{.}{.}{.} {} {.}{.} ischarge pressure a{kgf/cm } nput in kw xial nput t ull utoff. VR-. VR- xial input at full cutoff kw.... min min xial input at full cutoff kw.... min min {.} {.} {.} {.} {} {.} ischarge pressure a{kgf/cm } {.} {.} {.} {.} {.} {} {.} ischarge pressure a{kgf/cm } {.} oise haracteristics VR- easurement osition: meter behind pump VR- easurement osition: meter behind pump oise level d() min min oise level d() min min {.} {.} {.} {.} {} {.} ischarge pressure a{kgf/cm } {.} {.} {.} {.} {.} {} {.} ischarge pressure a{kgf/cm } {.} -

71 ross-sectional rawings VR--*- VR--* ist of Sealing arts art o. VR--*- U pplicable ump odel o. VR--*- VR--*- Seal it umber VS- VS- art ame art umber Q'ty art umber Q'ty acking V- V- Square ring V- R-- 9 il seal SR- V--V R-- R-- R-- R-- R-- R-- R-- R-- 9 R-- R-- ote). il seals are manufactured by ippon il Seal ndustry o.td. ().. he materials and hardness of the conform with S.. or VR-*-*-, the seal kit number becomes VS-*, without the and s. 9 9 art o. 9 art ame ody over over over Shaft iston Ring Vane late (S) late () late older older Shim art o. art ame art o. 9 Shim Retainer Spring Spring ey acking Square ring () eedle Screw Screw ut in in earing 9 9 art ame il seal Snap ring ut Screw Screw Screw Screw ameplate Vane umps 9 ist of Sealing arts art o. pplicable ump odel o. Seal it umber U 9 VR--*-*- VS- art ame art umber Q'ty acking V- Square ring V- il seal SR- R-- R-- 9 R-- R-- R-- art o. art ame ody ody over over over Shaft iston Rotor 9 Ring Vane art o. art ame late (S) late () late older older Shim Shim Retainer 9 Spring Spring ote). il seals are manufactured by ippon il Seal ndustry o. td. ().. he materials and hardness of the conform with S.. or VR--*-*-, the seal kit number becomes VS-, without the and s. art o. art ame Spring ey ey acking Square ring eedle Screw Screw 9 ut in art o. art ame in in earing il seal Snap ring ut 9 Screw Screw Screw Screw Screw ameplate -

72 Uni-pump Specifications Understanding odel umbers ( mark standard compliant) Vane umps Single ump ouble ump UV. UV * * * esign number umber of motor poles: () otor output (kw).,.,.,. (ype only) ressure adjustment range :. to.a {. to.kgf/cm } :. to.a {. to.kgf/cm } :. to.a {. to.kgf/cm } low characteristics : onstant discharge type : oot type mounting ump size : VR : VR ump ype: VR () Series Uni-pump esign number umber of motor poles: () otor output (kw).,.,. Shaft side pump pressure adjustment range :. to.a {. to.kgf/cm } :. to.a {. to.kgf/cm } :. to.a {. to kgf/cm } Shaft side pump flow rate characteristics : onstant discharge type ead side pump pressure adjustment range: Same as the shaft side pump ead side pump flow rate characteristics : onstant discharge type : oot type mounting ump size : VR ump ype: VR () Series Uni-pump Specifications odel o. UV- UV- UV- UV- UV- z areas UV- UV- z areas aximum Working ressure a{kgf/cm } ischarge rate Q l /min {.} {.} {.} otor Selection urves aximum low Rate l/min z -.kw z -.kw.kw.kw {.} {.} {.} {.} {.} {.} ischarge pressure a{kgf/cm } * Select a uni-pump that has a pressure and flow rate that is within the range of the drive so that the drive will not overload. * When the startup current of the uni-pump becomes higher for the motor, breakers may need to be changed. Selecting a motor he area under a motor output curve in the graph to the left is the operating range for that motor under the rated output for that motor. xample: o find the motor that can produce pressure of.a and a discharge rate of l/min. Selection rocess Since the intersection of the two broken lines from a pressure of.a and discharge rate of l/min intersect in the area under the.kw curve, it means that a.kw motor should be used. n the case of a double pump configuration, select a motor that is larger than the total power required by both pumps. -

73 . (-U port dimension) Rc/() Rc/(U on opposite side).. anging bolt otor rating plate (erminal box side) Rotation direction plate ressure adjusting screw Width across flat ump model (nameplate) φ (Round drain hole) erminal box terminal nstallation imension rawings UV- -. φ low rate adjusting screw Rc/(R).,.kW lectric drive conceptual diagram R S Uni-pump (ame sticker) (erminal box side) View R: ounting foot hole shape ( locations) Vane umps Uni-pump otor imensions [mm] S φ. Standard drive motor is the fully enclosed fan-cooled type.. Standard voltage for drive motor is V, / z or V, z.. Standard terminal box is terminal (right side viewed from pump).. See page - for the characteristics of the drive motor for the unipump (domestic standard rating). rame o. utput Weight [kw] [kg] ( poles) UV UV UV UV UV UV- anging bolt (.kw only) (-U port dimension) anging bolt Rc() Rc/(U on opposite side) 9. otor rating plate (erminal box side) Rotation direction plate (.kw only) ressure adjusting screw Width across flat ump model (nameplate) φ (Round drain hole) erminal box terminal -. φ low rate adjustingscrew Rc/(R).kW lectric drive conceptual diagram.kw lectric drive conceptual diagram R S Uni-pump (ame sticker) (erminal box side) View R: ounting foot hole shape ( locations) Uni-pump otor imensions [mm] S φ rame o. utput Weight [kw] [kg] ( poles) UV UV UV UV UV UV Standard drive motor is the fully enclosed fan-cooled type.. Standard voltage for drive motor is V, / z or V, z.. Standard terminal box is terminal (right side viewed from pump).. See page - for the characteristics of the drive motor for the unipump (domestic standard rating). -

74 UV- Vane umps anging bolt (.kw only) (.kw only) ressure adjusting screw Width across flat ump model (nameplate) Uni-pump UV UV (-U port dimension) anging bolt φ (Round drain hole) Rc/() Rc/(U on opposite side) erminal box terminal -. φ low rate adjusting screw Rc/(R) 99..kW lectric drive conceptual diagram.kw(steel plate) lectric drive conceptual diagram otor imensions [mm]. R otor rating plate (erminal box side) S φ S Rotation direction plate Uni-pump (ame sticker) (erminal box side) View R: ounting foot hole shape ( locations) rame o. utput Weight kw kg ( poles) UV UV UV UV UV UV UV UV UV UV UV UV UV Standard drive motor is the fully enclosed fan-cooled type.. Standard voltage for drive motor is V, / z or V, z.. Standard terminal box is terminal (right side viewed from pump).. See page - for the characteristics of the drive motor for the unipump (domestic standard rating). -

75 V SRS RSSUR Y VR VU V U V Series igh-ressure ype Variable Volume Vane ump eatures q ighly efficient and stable high-pressure operation nnovative pressure control and pressure balance mechanisms combine with an original -point ring support system dramatically improves high-pressure operation. he result is outstanding performance at high pressures up to a. wow vibration and noise number of innovative new mechanisms are adopted to minimize vibration and noise. n particular, a -point support system is used for the control piston and bias piston to increase ring Specifications odel o. V-()-- V-()-- V-()-- V-()-- V-()-- apacity cm /rev to l/min a stability. his minimizes ring vibration and delivers quiet operation. e utstanding response, high-precision operation n innovative new ring stopper eliminates excessive ring displacement and improves response. he result is high precision operation at all times, including during starts, stops, and load changes. r recise characteristics for a stable discharge rate revolutionary new pressure compensator type pressure control mechanism o-load ischarge Rate l/min ressure djustment Range a {kgf/cm }. to. {. to.} to {. to.} to. { to } to {. to }. to. {. to.} to {. to.}. to. {. to.} to {. to.} to. { to } to {. to }. to. {. to.} to {. to.}. to. {. to.} to {. to.} to. { to } to {. to } * ensures a highly stable fixed discharge rate, even in the high pressure range. t igh efficiency operation with minimal power loss ew mechanical innovations minimize power loss, especially at full cutoff. y Simplified maintenance and handling ressure adjusting and discharge rate adjusting mechanisms are located on the same side of the pump for simplified maintenance and handling. llowable eak ressure a Revolution Speed min - min - min - min - min - in. ax. {kgf/cm } ouble ump odel o. Vent Side Shaft Side oot ounting ype (lange ounting) V-()--- V-()--- V-()--- V-()--- V-()--- V-()--- V-()--- V-()--- V-()--- V-()--- V-()--- V-()--- ischarge Rate l/min ressure djustment Range a {kgf/cm } ischarge Rate l/min {} {} Weight kg 9. {} 9. {} {} {} {} {} ressure djustment Range a {kgf/cm } to {. to.} to {. to } to {. to.} to {. to } to {. to.} to {. to } to {. to.} to {. to } to {. to.} to {. to } to {. to.} to {. to } Revolution Speed min - min - min - min - min - in. ax. to {. to.} to {. to.} to {. to } to {. to.} to {. to.} to {. to } ote). V-, V-, V- and V- are foot mounting types, and come with foot mountings.. V- and V- are sub plate types. Sub plates are not included. () Weight kg ype ype ype ype ype ype ype ype * Vane umps -

76 Vane umps andling zrotation irection he direction of rotation is always is clockwise (rightward) when viewed from the shaft side. xrain rain piping must be direct piping up to a point that is below the tank fluid level, and piping should comply with the conditions shown in the table below to ensure that back pressure due to pipe resistance does not exceed.a. When using a pump that has drain ports at two locations, use the drain port that is higher after the pump is installed. n the case of a double pump, run separate pipes from both the shaft side and the head side drains directly connect to the tank, so the drain pipe is below the surface of the oil. odel o. tem ipe oint Size ipe.. ipe ength V- V- V- t least /" t least φ. t least /" t least φ. m or less m or less t least /" t least φ 9. m or less cischarge Volume djustment he discharge flow rate is decreased by clockwise (rightward) rotation of the discharge rate adjusting screw, and increased by counterclockwise (leftward) rotation. oosen the lock nut before making adjustments. fter adjustment is complete, re-tighten the lock nut. he graph below provides general guidelines for the relationship between the rotation angle of the flow rate adjusting screw and the no-load discharge rate. owever: Q=q Q : o-load ischarge RateQl/min q : Volume cm /rev : Revolution Speed min bactory efault -Q Settings (Standard odel) low Rate Setting = aximum flow rate for model as indicated in the catalog ressure Setting = ressure shown in table below nhrust Screw and Stopper he thrust screw and stopper are precision adjusted at the factory during assembly. ever touch them. See callouts / and / in the V- and / cross-section diagrams on pages - and -. mn unload circuit is required when the motor is started under condition λ Δ. ontact your agent about the unload circuit.,nitial peration efore operating the pump for the first time, put the pump discharge side into the noload state and then repeatedly start and stop the motor to bleed all air from inside the pump and the suction piping. fter confirming that the pump is discharging oil, continue the no-load operation for at least minutes to discharge all the air from the circuit. rovide an air bleed valve in circuits where it is difficult to bleed air before startup..sub late Use the table below for to specify a sub plate type when one is required. oot ounting or a double pump with V- foot mounting, the foot mounting kit and pump are sold as a set. When only the mounting feet are required, pump mounting bolts, washers and other parts are sold together as the oot ounting it. See page - for detailed dimensions. or the hydraulic operating fluid, use type S V or equivalent (viscosity index of at least 9) for pressures of a or lower, and type S V or equivalent (viscosity index of at least 9) for pressures greater than. he operating temperature range is to. When the oil temperature at startup is or less, perform a warm-up operation at low pressure until the oil temperature reaches. Use the pump in an area where the temperature is within the range of to. Suction pressure is -. to +.a (-. to +.kgf/cm ), and the suction port flow rate should be no greater than m/sec. void pulley, gear, and other drive systems that impart a radial or thrust load on the end of the pump shaft. ount the pump so its pump shaft is oriented horizontally. rovide a suction strainer with a filtering grade of about μm ( mesh). or the return line to the tank, use a μm line filter. anage hydraulic operating fluid so contamination is maintained at class S or lower. ake care to avoid contamination with water and other foreign matter, and watch out for discoloration. Whitish fluid indicates that air has contaminated the fluid, and brownish fluid indicates the fluid is dirty. ontact your agent about using water- and glycol-based hydraulic operating fluids. t startup, repeat the inching operation (start-stop) to prime the pump and bleed air from the pump and pipes. (his pump has no fluid supply port.) (ontinued on following page) low djustment Rotation ngle ( θ ) and ump apacity (q) ump capacity q cm /rev V--* V--* V- V--* V--* 9 Rotation angle θ (clockwise) actory efault ressure Settings a{kgf/cm } :. {.} : {.} : { } : {.} ote) he values indicated above are at maximum pump discharge volume with the flow volume adjusting screw at the position. he broken line shows the flow volume adjustment range lower limit value. vressure djustment ressure is increased by clockwise (rightward) rotation of the discharge rate adjusting screw, and decreased by counterclockwise (leftward) rotation. oosen the lock nut before making adjustments. fter adjustment is complete, re-tighten the lock nut. Sub late umber ump odel o. Sub late umber otor kw V---. to. V--*- V---. to. V--Y-. to. V--*- V--Y-. to. V---. to. V--**- V---. V--*- V--Z-. ote) See pages - and - for detailed dimensions. -

77 9quip an air bleed valve in circuits where it is difficult to bleed air before startup. See page - for more information. When centering the pump shaft, eccentricity with the motor shaft should be no greater than.mm. Use a pump mounting base of sufficient rigidity. he angle error should be no greater than. nverter rive recautions zset the revolution speed within the range of the pump specification revolution speed. xhanging the revolution speed may also affect the pump performance curves. efore using the inverter, check if the pressure and motor load factor are within the range of use. xplanation of model o. Single ump V esign number ressure adjustment range :. to.a {. to.kgf/cm } : to a {. to.kgf/cm } : to.a { to kgf/cm } : to a {. to kgf/cm } ote: Ring size: n the case of, maximum setting pressure is pa (.kgf/cm ). low characteristics : onstant discharge type Ring size at min - Ring size V- V- V- l/min l/min l/min l/min l/min ounting method : oot type mounting : lange type mounting ump size : ype : ype : ype ump ype: V Series igh-pressure Variable ischarge Rate Vane ump Vane umps ouble ump V esign number Shaft side pressure adjustment range : to a {. to.kgf/cm } : to a {. to kgf/cm } Shaft side flow rate characteristics Shaft side ring size, (Size only for V-) ead side pressure adjustment range, ead side flow rate characteristics ead side ring size, ounting method : oot type mounting : lange type mounting Shaft side pump size,, ead side pump size, : onstant discharge rate type : onstant discharge rate type ump ype: V Series igh-pressure Variable ischarge Rate Vane ump -

78 nstallation imension rawings Single ump V--**- ressure adjusting screw Rc / R (, type only) Vane umps to φ 9 X. X.. ±. R. ±..9 X.. low rate adjusting screw φ 9.. U ( φ) R ( φ) ( φ) V--**- 9 X. X. ressure adjusting screw. X. low rate adjusting screw 9. Rc / R 9.. φ.. to φ Rc / φ 9. 9 ±.. Rc / U -

79 V--**- ressure adjusting screw. 9 Rc / R X.9. X.9. 9 X.9 low rate adjusting screw (.) φ.. Vane umps to φ 9 to R U ( φ) R ( φ9) ( φ) V--**- ote) -** refers to S --**. ressure adjusting screw. 9 Rc / R 9 X.9 low rate adjusting screw.. φ... φ X.9. X.9.. to φ Rc ±. (-U port dimension) Rc / U -9

80 V--*- Vane umps U flange Screw-in type Welded type flange Screw-in type Welded type 9.± ±.. ± ±..±.. Rc / (R) ressure adjusting screw.. φφ.. oot ounting it -- -x. φ -x X.9. ±. low rate adjusting screw X. X. to 9. ± φx handhold φ holes V--*- U flange Screw-in type Welded type flange Screw-in type Welded type ±.. ± ±.. ±. φ Rc / R ressure adjusting screw.. φ.. φ -x -x. φ X X 9 low rate adjusting screw X. X..9. to. 9 ote) Use the following table when specifying the piping flange kit. ype Screw in type Welded ype lange it model o or dimensions, components, and other details, see the pump piping flange kits on pages - and -. -

81 ouble ump V--**-**- ressure adjusting screw. X Rc / (R) low rate adjusting screw φ φ Rc / (R) -Rc / () X 9 9 φhole Rc / (U) Vane umps V--**-**- 9 (-U port dimension) ressure adjusting screw Rc / (R) low rate adjusting screw Rc / (R).. φ.. X9 X9. (-U port dimension) V--**-**- Rc / () Rc / (U).. φ Rc () ±. Rc / (U) 9 ressure adjusting screw X 9 low rate adjusting screw Rc / (R) Rc / (R) φ... φ -Rc () φ.hole X 9. (-U port dimension) ±. -Rc / (U) V--**-**- (-U port dimension) (-U port dimension) ressure adjusting screw Rc / (R) X X 9 low rate adjusting screw Rc / () Rc / (U) φ () φ (U) (). (U). ote). V-** has the foot mounting kit shown on page - installed.. Rc-* previously was *. Rc / (R) φ.... low rate () adjusting screw. (U) 9 -x () -x (U). φ..9. U -

82 erformance urves ypical characteristics at hydraulic operating fluid kinematic viscosity of mm /s Vane umps ischarge rate Q /min l ischarge rate Q /min l ischarge rate Q /min l V-()-- V-()-- V-()-- min Q min Q min Q rain rate R R {.}{.} {.} {.} {.} {.} {.} ischarge pressure a{kgf/cm } V-()-- V-()-- V-()-- rain rate R V-()-- rain rate R xial input at full cutoff xial input at full cutoff kw min.... min min min min Q in in R {.} {.} {.} {.} {.} {.} {.} ischarge pressure a{kgf/cm } min min min min.... {.} {.} {.} {.} ischarge pressure a{kgf/cm } nput in kw R {.}{.} {.} {.} {.} {.} {.} ischarge pressure a{kgf/cm } V-()-- Q min Q min in in R R {.} {.} {.} {.} {.} {.} {.} {.} ischarge pressure a{kgf/cm } ischarge pressure a{kgf/cm } min min nput in kw nput in kw ischarge rate Q /min l ischarge rate Q /min l ischarge rate Q /min l rain rate R rain rate R rain rate R V- V- V- xial input at full cutoff kw min min min min min min in in R {.} {.} {.} {.} {.} {.} {.} ischarge pressure a{kgf/cm } min min min min min Q min min.... {.} {.} {.} {.} ischarge pressure a{kgf/cm } nput in kw nput in kw nput in kw ischarge rate Q /min l ischarge rate Q /min l rain rate R /min R {.} {.} {.} {.} {.} {.} {.} ischarge pressure a{kgf/cm } rain rate R rain rate R R... {.} {.} {.} {.} ischarge pressure a{kgf/cm } xial input at full cutoff kw min min min min min min min in min min.... {.} {.} {.} {.} ischarge pressure a{kgf/cm } Q in nput in kw nput in kw -

83 oise haracteristics V- V- V- easurement osition: meter behind pump easurement osition: meter behind pump easurement osition: meter behind pump oise level d() min min t full cutoff oise level d() min min t full cutoff oise level d() min min t full cutoff.... {.} {.} {.} {.} ischarge pressure a{kgf/cm } ross-sectional rawings V--**- V--** {.} {.} {.} {.} ischarge pressure a{kgf/cm } {.} {.} {.} {.} ischarge pressure a{kgf/cm } 9 9 Vane umps Seal omponent able (V-*,V-*) art o. pplicable ump odel o. V--*- V--*- Seal it umber VS- VS- art ame art umber Q'ty art umber Q'ty il seal V--V --V S() R-- S- S- S- S- R-- R-- 9 R-- R-- R-- R-- R-- R-- 9 R-- R-- R-- R-- R-- R-- R-- R-- ackup ring V- V- ackup ring V- V- R-- R-- R-9 R-9 ote). il seals are manufactured by ippon il Seal ndustry o. td. ().. he materials and hardness of the conform with S.. or VR-*-*-, the seal kit number becomes VS-*, without the,, and s. art o art ame ody () ody () over () over () Shaft Ring Vane late (S) late () iston () iston () earing earing Spring hrust screw Screw ut ut art o. art ame 9 ey in older older rifice il seal 9 ackup ring art o art ame ackup ring ap Snap ring Screw Screw Screw Screw (stopper) Screw lug lug ole ameplate Valve body Spool older lunger Spring Retainer Screw ut lug lug Screw -

84 V--* Vane umps 9 Seal omponent able (V-*) art o. pplicable ump odel o. V-()-*- Seal it umber VS- art ame art umber Q'ty il seal --V R-- S-(R-9) S-(R-9) R-- R-- 9 R-- 9 R-- R-- R-- R-9 (R-9) ote). il seals are manufactured by ippon il Seal ndustry o. td. ().. he materials and hardness of the conform with S. art o. 9 art ame ody () ody () ounting over () over () Shaft Ring Vane late (S) late () iston () iston () earing Spring hrust screw Screw art o. 9 9 art ame ut ut ey in older rifice il seal ap art o. 9 9 art ame Snap ring Screw Screw Screw Screw Screw (stopper) Screw lug Washer ameplate ole Valve body Spool older lunger Spring Retainer Screw ut lug lug Screw -

85 V Series ouble ump 9 Vane umps ist of Sealing arts art o. art ame art o. art ame ody () ody () Shaft (S) Shaft () oint Screw 9 Screw Screw ote) n the case of a double pump, use single pump parts in addition to the parts listed above. V--*-*- V--*-*- V--*-*- V--*-*- art umber Q'ty art umber Q'ty art umber Q'ty art umber Q'ty R-- R-- R-- R-- R-- R-- ote). See the description of the single pump for seal parts that are not included in the list.. he materials and hardness of the conform with S. -

86 oot ounting nstallation easurement hart or V-, V- and V- (for double pump) Vane umps or V- and V- oot ounting it odel o. pplicable ump odel o. ccessories imensions mm olt Q'ty Washer Q'ty V-- V- V- - WS V- V-- -- V- V- V- V- - WS W oot ounting it odel o. imensions mm () () Q S U φ φ d φ d φ d φ d Weight kg V V

87 Uni-pump Specifications Single ump ( mark standard compliant) ouble ump UV. UV. Specifications odel o. UV- UV- UV- otor selection curves z areas z areas aximum Working ressure a{kgf/cm } {.} {.} {.} esign number umber of motor poles: () otor output (kw).,.,.,. ressure adjustment range :. to.a {. to.kgf/cm } :. to.a {. to.kgf/cm } : to.a { to kgf/cm } low characteristics : onstant discharge type Ring size one : l/min at min : l/min - : oot type mounting ump size : V () : V () ump ype: V Series Uni-pump l/min ischarge rate Q aximum low Rate l/min (*) aximum low Rate l/min (*) z z z z -.kw.kw.kw.kw - ischarge pressure a - - esign number umber of motor poles: () otor output (kw).,.,. Shaft side pump pressure adjustment range :. to.a {. to.kgf/cm } :. to.a {. to.kgf/cm } Shaft side pump flow rate characteristics : onstant discharge type Shaft side pump ring size one : l/min at : l/min min- ead side pump pressure adjustment range: Same as the shaft side pump ead side pump flow rate characteristics : onstant discharge type ead side pump ring size one : l/min at min : l/min - : oot type mounting ump size : V () ump ype: V Series Uni-pump Selecting a motor he area under a motor output curve in the graph to the left is the operating range for that motor under the rated output for that motor. xample: o find the motor that can produce pressure of.a and a discharge rate of. l/min. Selection rocess Since the intersection of the two broken lines from a pressure of.a and discharge rate of. l/min intersect in the area under the.kw curve, it means that a.kw motor should be used. n the case of a double pump configuration, select a motor that is larger than the total power required by both pumps. * Select a uni-pump that has a pressure and flow rate that is within the range of the drive so that the drive will not overload. * When the startup current of the uni-pump becomes higher for the motor, breakers may need to be changed. Vane umps -

88 nstallation imension rawings UV- anging bolt (.kw only) 9 X. (-U port dimension) anging bolt Rc/() Rc/(U on opposite side) ressure adjusting screw 9. Rc/(R) otor rating plate (erminal box side) Rotation direction plate Vane umps (.kw only) ump model (nameplate) φ (Round drain hole) erminal box terminal -. X. low rate adjusting screw.kw lectric drive conceptual diagram.,.kw lectric drive conceptual diagram R S Uni-pump (ame sticker) (erminal box side) View R: ounting foot hole shape ( locations) Uni-pump otor imensions [mm] S φ UV UV UV UV UV UV UV UV UV UV UV Standard drive motor is the fully enclosed fan-cooled type.. Standard voltage for drive motor is V, / z or V, z.. Standard terminal box is terminal (right side viewed from pump).. See page - for the characteristics of the drive motor for the unipump (domestic standard rating). rame o. utput kw ( poles) Weight kg UV- anging bolt (.kw only) X.9. (-U port dimension) Rc() Rc/(U on opposite side) anging bolt. 9. Rc/(R) Rotation direction plate (.kw only) erminal box terminal X.9 Uni-pump (ame sticker) (erminal box side) ump model (nameplate) Uni-pump φ (Round drain hole) -. low rate adjusting screw otor rating plate.kw (erminal box side) lectric drive conceptual diagram otor imensions [mm] S φ View R: ounting foot hole shape ( locations) UV UV UV UV UV UV Standard drive motor is the fully enclosed fan-cooled type.. Standard voltage for drive motor is V, / z or V, z.. Standard terminal box is terminal (right side viewed from pump).. See page - for the characteristics of the drive motor for the unipump (domestic standard rating). R S rame o. utput kw ( poles) Weight kg -

89 UV- anging bolt (.kw only) (.kw only) ump model (nameplate) 9 X. anging bolt (-U port dimension) φ (Round drain hole) ressure adjusting screw erminal box terminal -. low rate adjusting screw Rc/() Rc/(U on opposite side).kw lectric drive conceptual diagram.kw lectric drive conceptual diagram Rc/(R) otor rating plate (erminal box side). Standard drive motor is the fully enclosed fan-cooled type.. Standard voltage for drive motor is V, / z or V, z.. Standard terminal box is terminal (right side viewed from pump).. See page - for the characteristics of the drive motor for the unipump (domestic standard rating). X R Rotation direction plate S Uni-pump (ame sticker) (erminal box side) View R: ounting foot hole shape ( locations) Uni-pump otor imensions [mm] rame utput Weight kw S φ o. ( poles) kg UV UV UV UV UV UV UV UV UV UV UV UV Vane umps -9

90 Vane umps UV SRS VR VU V U-U UV Series Variable Volume Vane Uni-pump (S Uni-pump) eatures. nergy efficient high performance ll the performance of a vane pump, right from the low pressure range, is enhanced even further by eliminating the external drain and optimizing the pressure balance, creating a design that generates little heat. he result is a pump that contributes to the energy efficiency of the mother machine, as well as to process precision. Specifications to cm /rev a{.kgf/cm }.ightweight, compact design he pump and motor are designed for exclusive uni-pump use, making them lightweight, compact, easy to handle, and suitable for a wide range of applications. U R.ow noise, long life he pump and motor shaft are linked by a joint, which minimizes noise by eliminating the effects of shaft vibration and an off-center shaft. he coupling is constructed to allow constant lubrication, for friction-free long life. odel o. UV ump apacity cm /rev ressure djustment Range a{kgf/cm }. to. {. to.} UV to. {. to.} UV to. {. to.} UV to. {. to.} UV to. {. to.} UV to. {. to.} UV to. {. to.} UV to. {. to.} o-load ischarge Rate l/min z z. 9 9 UV to. {. to.} ote) ontact your agent for combinations other than those noted above. ote) ue to the change of designs from to, to, the color of paint is changed to black. xplanation of model o. UV. esign number umber of motor poles otor output (kw) *ower supply V-/z V-z.:.kW.:.kW.:.kW ressure adjustment range :. to.a {. to.kgf/cm } :. to.a {. to.kgf/cm } :. to.a {. to.kgf/cm } low characteristics ischarge rate (t =min ) :. l/min (max) : 9 l/min (max) : oot type mounting ump size : V- UV Series Uni-pump : onstant discharge type -

91 UV. * ump size esign number Voltage symbol umber of motor poles Special processings erminal box position otor output.:.kw.:.kw one: Standard : ropicalization one: terminal : terminal ressure adjustment range :. to.a {. to.kgf/cm } :. to.a {. to.kgf/cm } :. to.a {. to.kgf/cm } low characteristics ischarge flow rate (t =min ) : l/min (max) : oot type mounting : V- UV Series Uni-pump andling.nstallation and iping recautions zrovide a mounting base of sufficient rigidity, and install so that the pump shaft is oriented horizontally. xake sure the flow rate of the suction piping is no more than m/s, and that the suction pressure at the pump suction port is in the range of -. to +.a. crain piping must be direct piping up to a point that is below the tank fluid level, and back pressure due to pipe resistance should not exceed.a. rovide a suction strainer with a filtering grade of about μm ( mesh)..running recautions zhe direction of rotation is clockwise (rightward) when viewed from the motor fan side. xt startup, repeat the inching operation with the pump discharge side at no-load to prime the pump and bleed air from the pump and suction piping. (his pump has no fluid supply port.) cquip an air bleed valve in circuits where it is difficult to bleed air before startup. vake sure the maximum peak pressure (setting pressure + surge pressure) during operation does not exceed a. Refer to the following piping conditions as a guideline to keep the maximum peak pressure below a. /" x m rubber hose (ischarge rate ; ype a, ype a) (pipe volume: approximately cm ) bnstall a relief valve to cut surges in the circuit if pressure exceeds a. ote) he maximum peak pressure of the discharge rate ype is a. : onstant discharge type. anagement of ydraulic perating luid zuse only good-quality hydraulic operating fluid with a kinematic viscosity at a oil temperature of within the range of to mm /sec ( to cst). ormally, you should use an R& type and wear-resistant type of S V or, or equivalent. xhe operating temperature range is to. When the oil temperature at startup is or less, perform a warm-up operation at low pressure until the oil temperature reaches. Use the pump in an area where the temperature is within the range of to. cor the return line to the tank, use a μm line filter. vanage hydraulic operating fluid so contamination is maintained at class S or lower. ake care to avoid contamination with water, foreign matter, and other oil, and watch out for discoloration.. Setting the ressure and ischarge Rate zwhen adjusting pressure, pressure is increased by clockwise (rightward) rotation of the adjusting screw and decreased by counterclockwise (leftward) rotation. fter adjustment is complete, securely tighten the lock nut. xurn adjustment screw right to decrease or left to increase volume of discharge. Refer to guidelines in the following diagram for the relationship of the nonload volume of discharge and the position of the flow adjustment screw. low djustment Rotation ngle ( θ ) and ump apacity (q) UV--*(cm /rev) ump capacity q cm /rev UV--* (cm /rev) UV--* (cm /rev) fter adjustment is complete, securely tighten the lock nut. cactory efault -Q Settings (Standard odel) low Rate Setting = aximum flow rate for model as indicated in the catalog ressure Setting = ressure shown in table below actory efault ressure Settings a{kgf/cm } :. {.} :. {.} :. {.} vll adjustments, except the flow volume adjusting screw, are precision adjusted at the factory during assembly, do not adjust them. (o not make any adjustments other than the pressure adjustment screw and the flow rate adjusting screw.) ote) he values indicated above are at maximum pump discharge volume with the flow volume adjusting screw at the position. he broken lines show the flow volume adjustment range lower limit value. nverter rive recautions zset the revolution speed within the range of the pump specification revolution speed. xhanging the revolution speed may also affect the pump performance curves. efore using the inverter, check if the pressure and motor load factor are within the range of use. ote) he values indicated above are at maximum pump discharge volume with the flow volume adjusting screw at the position. he broken line shows the flow volume adjustment range lower limit value. Vane umps 9 Rotation angle θ (clockwise) -

92 nstallation imension rawings nstallation method is the same as design number (old design). Vane umps rain port Rc / ressure adjusting bolt ressure adjusting bolt descend rise R* S uxiliary View Y nstallation ole imensions ( ocations) () () ( terminal) () uxiliary View Y terminal (standard) low rate adjusting bolt ressure gauge connection port Rc / ump ischarge ort Rc / or S b /. low rate adjusting bolt Q increase decrease. - depth uxiliary View X ump suction port Rc / 9.. uxiliary View X 9. utlet terminal / eye bolt Rotation direction sticker otor plate (pposite side) φ (Vent hole diameter) φ odel o. utput - oles (kw-) otor imensions (mm) φ S R* φ UV-- *-.* R 9 9 UV-- *-.* R UV-- *-.* R Weight kg ressure adjusting screw descend rise ressure adjusting screw anging bolt (.kw only) rain port Rc/ erminal box terminal (.kw only) ±. ±. () () anging bolt φ (Round drain hole) erminal box terminal. ressure gauge connection port Rc/ -X low rate adjusting bolt increase Q decrease uxiliary View X S ump ischarge ort Rc / or S b / Rc/.. ump suction port Rc low rate adjusting bolt (,U) (R) View R: ounting foot hole shape ( locations) - ump apacity and otor utput ategory ombinations -.kw.kw.kw * * otor rating plate (erminal box side) R, terminal common fan side Rotation direction plate Uni-pump (ame sticker) (erminal box side).kw lectric drive conceptual diagram odel o.. Standard drive motor is the fully enclosed fan-cooled type.. Standard voltage for drive motor is V, / z or V, z.. Standard terminal box is terminal (right side viewed from pump). otor imensions [mm] S φ UV--*-.**-* UV--*-.**-* rame o. utput [kw] ( poles) Weight [kg] ump ressure lassification and otor utput ombinations.kw.kw -

93 haracteristics of drive motor for unipump (domestic standard rating) UV-- * utput kw oles... UV--* utput oles kw odel umber he drive motor is specialized for the unipump and is not a specific model. odel umber. V-*-. V-*- Voltage [V] requency [z] urrent rating [] R rating [min - ] Voltage [V] requency [z] urrent rating [] R rating [min - ] eat resistance eat resistance Vane umps erformance urves UV--**-*-- perating luid: S V il temperature: otor selection curves he area under a motor output curve in the graph below is the operating range for that motor under the rated output for that motor. xample: o find the motor that can produce pressure of.a and a discharge rate of l/min. Selection rocess Since the intersection of the two broken lines from a pressure of.a and discharge rate of l/min intersect in the area under the.kw curve, it means that a.kw motor should be used. * Select a uni-pump that has a pressure and flow rate that is within the range of the drive so that the drive will not overload. * When the startup current of the uni-pump becomes higher for the motor, breakers may need to be changed. ischarge rate Q l /min UV --*(z).kw.kw ischarge rate Q l /min UV --*(z).kw.kw {.} {.} {.} {.} ischarge pressure a{kgf/cm } {.} {.} {.} {.} ischarge pressure a{kgf/cm } ischarge rate Q l /min UV --*(z).kw.kw ischarge rate Q l /min UV --*(z).kw.kw {.} {.} {.} {.} ischarge pressure a{kgf/cm } {.} {.} {.} {.} ischarge pressure a{kgf/cm } -

94 otor selection curves (cm /rev) UV--* z z Vane umps ischarge rate Q l /min.kw.kw {.} {.} {.} {.} ischarge pressure a{kgf/cm } otor ower oss at ull utoff R Volume a ull utoff. UV-- *-.--. UV --**-*--(z) otor axial input kw.... z z rain rate R l /min..... ischarge pressure a {.} {.} {.} {.} setting pressure a{kgf/cm }. UV--*-.--. UV --*-*--(z) otor axial input kw.... z z rain rate R l /min..... ischarge pressure a {.} {.} {.} {.} setting pressure a{kgf/cm } -

95 UV--* pump UV--* pump min - Q ischarge rate Q l /min min - min - min - min - Q in.. {.} {.} {.} {.} ischarge pressure a{kgf/cm } nput in kw ischarge rate Q l /min min - min - min - in {.} {.} {.} {.} ischarge pressure a{kgf/cm } nput in kw Vane umps UV--* pump ischarge rate Q l /min min - min - min - min - Q in {.} {.} {.} {.} ischarge pressure a{kgf/cm } nput in kw * he pressure flow rate characteristics are the characteristics for individual UV pumps. he pressure and flow rate must be within the output range of the motor. See page - for the output ranges of drive motors. -

96 SRS U Series ump. to.9cm /rev a his is a new design series in which all pump types are installation compatible with previous designs. ote, however, that there is no longer compatibility for some of the seal components between the - and - sizes and design numbers and. eatures q patented axial and radial pressure loading system provides high efficiency and generates pressures up to a {kgf/cm }. Specifications w utstanding durability and very long life. e modified involute short-tooth gear enables internal gearing for greatly reduced pulsation and noise, and exceptionally quiet operation. r simple structure makes maintenance and inspection easier. ear umps odel o. apacity cm /rev Rated Voltage a aximum perating ressure a{kgf/cm } inimum Revolution Speed min aximum Revolution Speed min ype Weight kg -() {} {} () {} {} () {} {} ()- -() {} {} ()- -() {} {} ote). apacity: ogical discharge rate per rotation.. Suction ressure: +. to +.a {. to +.kgf/cm }. aximum working pressure shown here is the pressure limit when there are frequent pressure changes.. void installation with the suction porttowards the bottom of the pump.. Specify using the model number format shown below when pipe flanging is required. xplanation of model o. andling z or the hydraulic operating fluid, use an R& type and wear-resistant type of S V to or equivalent (viscosity index of at least 9). Use hydraulic operating fluid that provides kinematic viscosity during operation in the range of to mm /s. x he operating temperature range is to. When the oil temperature at startup is or less, perform a warmup operation at low pressure until the oil temperature reaches. Use the esign number : (),, : (), () :, uxiliary symbol one: lockwise (viewed from shaft end) : ounterclockwise (viewed from shaft end) : With screw in type flange kit : With welded type flange kit apacity (cm /rev) uxiliary symbol must be provided in alphabetic order. ounting method : oot type mounting : lange type mounting Size,,,, Series ump ype pump in an area where the temperature is within the range of to. c Suction pressure is -. to +.a (-. to +.kgf/cm ), and the suction port flow rate should be to greater than m/sec. v void pulley, gear, and other drive systems that impart a radial or thrust load on the end of the pump shaft. b ount the hydraulic pump so its pump shaft is oriented horizontally. rovide a suction strainer with a filtering grade of about μm ( mesh). or the return line to the tank, use a μm line filter. n anage hydraulic operating fluid so contamination is maintained at class S or lower. ake care to avoid contamination with water and other foreign matter, and watch out for discoloration. Whitish fluid indicates that air has contaminated the fluid, and brownish fluid indicates the fluid is dirty. m perate within the R range in the catalog for the minimum R of the pump. Unload the pump's load pressure to operate at variable speeds. ondition of inflow piping must produces as little inflow load pressure as possible to minimize effect of cavitation. (ontinued on following page) -

97 ear umps, When using water- or glycol-based hydraulic operating fluid, refer to page - for details on applicable models of hydraulic pumps.. t startup, repeat the inching operation (start-stop) to bleed air from the pump and pipes. quip an air bleed valve in circuits where it is difficult to bleed air before startup. See page - for more information. ischarge Rate and Required nput for ach ump Speed Speed min - min - min - min - odel o. ressure a -()-.-. -()-- -()-- -()--() -()--() -()-.-. -()-- -()-- -()--() -()--() -()-.-. -()-- -()-- -()--() -()--() -()-.-. -()-- -()-- -()--() -()--() o ensure proper lubrication of the pump's rubbing surfaces, supply oil to the interior of the pump before starting operation. When centering the pump shaft, eccentricity with the motor shaft should be no greater than.mm. Use a pump mounting base of sufficient rigidity. he angle error should be no greater than. ontact your agent for information about engines. ischarge Rate l/min nverter rive recautions z Set the revolution speed within the range of the pump specification revolution speed. x hanging the revolution speed may also affect the pump performance curves.efore using the inverter, check if the pressure and motor load factor are within the range of use. ailure to follow these precautions creates the risk of damage to the pump and burnout of the motor. Required nput kw ote) Values in the table are general values at an operating fluid viscosity of mm /s. Use the values when selecting the model for your needs.

98 nstallation imension rawings --*- (oot ounting, lockwise Rotation) 9 to φ xcounterbore.. φ holes to x Suction port flange Sb-/. φ to x ear umps ±. ischarge port flange Sb-/. --*- (lange ounting, lockwise Rotation) φ φ.. to x. Suction port flange Sb-/ φ to x φ. ischarge port flange Sb-/. φ φ.. imensions (mm) odel o. φ -*-.-*-..9 -*- -*-. -*-.-*-. -*- -*-. ote) - ()-*-- (foot mounting/flange mounting, counterclockwise rotation) are the mirror image of the drawings shown above. n the case the suction port flange is facing upwards, the discharge port flange is positioned to the right when viewed from the shaft side. -

99 --*- (oot ounting, lockwise Rotation) to φ counterbore holes φ to x.. ear umps. Suction port flange Sb- to x... ischarge port flange Sb-/.. --*- (lange ounting, lockwise Rotation) φ φ ±... φ 9.. to x Suction port flange Sb- φ to x φ ischarge port flange Sb-/. φ φ 9.. imensions (mm) odel o. φ -*--*-.. -*--*-.. -*--*- 9.. ote) - ()-*-- (foot mounting/flange mounting, counterclockwise rotation) are the mirror image of the drawings shown above. n the case the suction port flange is facing upwards, the discharge port flange is positioned to the right when viewed from the shaft side. -

100 --*- (oot ounting, lockwise Rotation) to φ xcounterbore φ holes.. to x. Suction port flange Sb-/. φ to x... ischarge port flange Sb-/ --*- (lange ounting, lockwise Rotation) to x. φ ±... φ.. ear umps. Suction port flange Sb-/ φ to x φ.. ischarge port flange Sb-/ φ φ.. imensions (mm) odel o. φ -*--*-. -*--*-. -*--*-. ote) - ()-*-- (foot mounting/flange mounting, counterclockwise rotation) are the mirror image of the drawings shown above. n the case the suction port flange is facing upwards, the discharge port flange is positioned to the right when viewed from the shaft side. -

101 --*- (oot ounting, lockwise Rotation) to φ xcounterbore 9. φ holes to x9. ear umps Suction port flange Sb-/ φ to x 9... ischarge port flange Sb-. --*- (lange ounting, lockwise Rotation) φ ±..9. φ.. to x9 9 odel o. Suction port flange Sb- to x.. ischarge port flange Sb- imensions (mm) φ -*--*-(). 9. -*--*-(). 9. -*--*-(). 99. / φ. φ... φ φ. ote) - ()-*-- () (foot mounting/flange mounting, counterclockwise rotation) are the mirror image of the drawings shown above. n the case the suction port flange is facing upwards, the discharge port flange is positioned to the right when viewed from the shaft side... -

102 --*- (oot ounting, lockwise Rotation). to φ xcounterbore φholes 9. to x 9.. Suction port flange Sb- φ to x ear umps...±. ischarge port flange Sb-/ φ φ.. --*- (lange ounting, lockwise Rotation) to x. Suction port flange Sb- φ.9 to x φ.... ischarge port flange Sb -/ φ φ.. imensions (mm) odel o. φ -*- -*-().. -*--*-().. -*--*-().. ote) - ()-*-- () (foot mounting/flange mounting, counterclockwise rotation) are the mirror image of the drawings shown above. n the case the suction port flange is facing upwards, the discharge port flange is positioned to the right when viewed from the shaft side. -

103 ear umps erformance urves Revolution Speed min - perating ydraulic luid Viscosity mm /s Representative haracteristics Under bove onditions ross-sectional rawings -*-*-** Volume efficiency (%) ηυ verall efficiency (%) η 9 {} {} {} {} ressure a {kgf/cm } {} oise level d () 9 9 ote) rawings shown above are the - and -. he lower left cross-sectional drawing is the -, the radial seal # was removed and a wave washer was added. he lower right cross-sectional drawing is the - and -, the bushing # was removed, the spring pin # was replaced with a guide pin, and the radial seal # was removed and a wave washer # was added {} {} {} {} ressure a {kgf/cm } {} art o. art ame ody - ody - ounting Rear cover inion shaft Radial piston nternal gear ushing 9 nock pin Stopper pin Spring pin (guide pin) xial plate - xial plate - eeler piece Spring holder Spring ey Radial seal 9 Radial backup ring xial backup ring ackup ring earing il seal in 9 Snap ring Screw Washer Wave washer

104 Series Seal it Understanding Seal it odel umbers : Seal it umber pplicable ump odel o. omponent art umbers 9 Q'ty Q'ty Q'ty Radial Seal Radial ackup Ring xial ackup Ring ackup ring S-S- -() S- - S-. - S- - S-S- -() S- - S- - S-S- -() S- - S- - S-S- -()--() S- - - S- - - S-S- -()--() S- - - S- - - Seal it umber S S * *** (, ) omponent art umbers Q'ty Q'ty Q'ty Q'ty il seal S-S- S- R R R R S- R R S- R R S- R R S-S- S- R R R. R. S- R. R. S- R. R. S-S- S- R R. R. R. S- R R S- R R S-S- S- R R9 R S- R9. S- R. S-S- S-9 R R. R. S- R S- R ote).il seals are manufactured by ippon il Seal ndustry o. td. ()..s are not available through retail sources. onsult your agent for more information. esign number ( :, : ) apacity classification to Size,,,, S: Shaft side single pump or double pump : ead side double pump ndoor/outdoor use sealing Series Seal it Q'ty Q'ty ear umps -9

105 ear umps Series ipe lange it Understanding lange it odel umbers : he pipe flange kit combines the flanges, bolts, washers, and s required for each type of pump into a single kit. he component parts table shows the screw in type flange kit. n the case of the welded type flange, the flange part number is - ( of - changes to ). ll other included parts are the same. Screw in type lange it model o. pplicable ump odel o. lange lange art o. olt Washer --- -()-*- - - WS-- R ()-*- - - WS-- R ()-*- - - R ()-*-() - - WS-- R ()-*-() - - R-9 U lange lange art o. olt Washer - - WS-- R-9 -/ - - R WS-- R R WS-- R-9 Screw in type pplicable ump lange lange it model o. odel o. lange art o. olt Washer *-*- - - WS-- R R WS-- R R R *-*- - - WS-- R WS-- R R R *-*- - - R R WS-- R-9 U lange (Shaft Side) U lange (ead Side) lange art o. olt Washer lange art o. olt Washer lug - - WS-- R WS-- R-9 -/ - R WS-- R-9 - R WS-- R WS-- R WS-- R WS-- R-9 - R WS-- R WS-- R WS-- R-9 - R WS-- R-9 lug esign number : esign : Screw in type : Welded type ump size : Single pump to : ouble pump to Series lange it ote: -** refers to S --** ote). n the case of a double pump, the flange kit includes three flanges: one for the common port and two U port flanges. When using separate ports, use separate single pump flange kits, one each for the head side and the shaft side. ote). here is no common port in the case of the double pump models -, -, and -, or a single port is used. -

106 ipe lange nstallation imension iagram Screw in type ipe lange it art umber S Standard ominal iameter X" imensions (mm) φ d φ d - S b ½ ½ ote ) here is no R (previously ) / tap for the above flange numbers (exclusively for suction port use) marked with a star ( ). ote ) he bolt's thread length should be more than. times the bolt's diameter and the bolt must not reach the bottom of the bolt hole. Weight kg - S b ¾ ¾... - S b S b ¼ ¼ S b ½ ½ S b S b ½ ½ S b..9.. Welded ype ipe lange it art umber S Standard ipe iameter imensions (mm) e φ d φ d φ d φ d - S b ½ ½ S b ¾ ¾ S b S b ¼ ¼ S b ½ ½ S b S b ½ ½ S b Recommended ightening orque for lange nstallation olts or aluminum body or cast body (shared port) ounting bolt ightening orque m {kgf cm} 9. to. { to } 9. to. { to }. to. {9 to } ounting bolt ightening orque m {kgf cm} to { to } to { 9 to } to {9 to } Weight kg ear umps -

107 ear umps Series oot ounting it Understanding oot ounting it umbers: When only the mounting feet are required for a single pump or double pump, pump mounting bolts, washers and other parts are sold together as the oot ounting it. oot ounting nstallation easurement hart S--U esign number ump size : Single pump to : ouble pump to Series oot ounting it S--U S--U oot ounting it odel o. S--U pplicable ump odel o. ccessories imensions (mm) S U U U olt Q'ty Washer Q'ty W W W W , - - W , -, - - W , -, - - W , -, - - W oot ounting it odel o. oot ounting it odel o. pplicable ump odel o. ccessories imensions (mm) () Q (S) φ φ d φ d φ d φ d imensions (mm) U U olt Q'ty Washer Q'ty WS-- --, - - WS-- Weight kg oot ounting it odel o. imensions (mm) () Q R (S) φ φ d φ d φ d Weight kg -

108 ir leed-off Valve quipping an air bleed-off valve on the pump's discharge side helps to simplify air bleeding during test operation. Specifications q ir inside the pump and the suction pipe is exhausted rapidly when the pump is started up. When discharge pressure reaches.a {.kgf/cm } or greater after the pump intakes oil, a valve closes to prevent oil from leaking. w aximum operating pressure: a {kgf/ cm } e rovide piping to ensure that the tank port is under the oil level surface. xplanation of model o. esign number lose pressure :.a {.kgf/cm } :.a {.kgf/cm } iping (nominal diameter) ounting method : Screw connection type ir bleed-off valve pplication xamples to Rc (previously ) / art o. art ame Q'ty Valve body Snap ring Valve Spring ote ) f chattering occurs in a circuit when --- is used, use --- instead. ) f chattering occurs in a circuit when --- is used, use of a air bleed-off valve is not required. xample of ircuits that Require an ir leed-off Valve qwhen using a ype or ype check valve (Sample ircuit ) wwhen unload circuit function cannot be achieved (Sample ircuit ) ewhen the discharge sides of multiple pumps run together (Sample ircuit ) ear umps ircuit iagram ircuit iagram -

109 SRS U U ear umps Series ouble ump. to.9cm /rev a ll the types in this new design () series are installation compatible with the previous design (). ote, however, that there is no longer compatibility for some of the seal components between the - and - sizes and the and sizes. eatures qonfigured with the high-pressure, low-noise Series and pumps, these double pumps greatly expand Specifications the range of application for the pump. w wide selection of pump combinations provides options that are perfect for just about any type of application imaginable. odel o. ischarge Rate (min - o-load) Revolution Speed Required ower at perating ressure Vent Side Shaft Side in. ax. min -, a a{kgf/cm } l/min l/min min - min - kw --*-*-(*)-. to to 9.. to.9. to..9 to to.. -. to.9. Rated: -. to... to.9 {} -.9 to.. ax: - 9. to.. {} -. to to..9 to. 9. to to...9 to to to. 9. to. 9. ote). aximum ressure: aximum pressure limit when there are frequent pressure changes. owever, maximum pressure is the same as rated pressure when load is applied to the head side and shaft side simultaneously.. Suction ressure: -. to +. a {. to +. kgf/cm }. void installation with the suction port towards the bottom of the pump. f the revolution speed will exceed mm -, provide separate piping for shaft side and head size ports.. Specify using the model number format shown below when pipe flange is required.. Working pressure is continuous operating pressure when the same pressure exists on the head side and shaft side.. ndividual pump perform performance on the head side and shaft side is the same as that of the single pumps. Required power is the sum of the power required by each of the two pumps.. he "Required ower at min -, a (kw)" column in the above table are based on combinations that provide the maximum capacity for each model number, when pressure at both the head side and shaft side is a. xamples of combinations that provide "the maximum capacity for each model number" are ---- for -, and ---- for -. capacity of for all * ype pumps is used for calculations. andling andling is in accordance with procedures for the pump. See page - for more information. xplanation of model o. esign number uxiliary symbol Shaft side pump capacity (cm /rev) ead side pump capacity (cm /rev) ounting method : lange type mounting Shaft side pump size ( to ) ead side pump size ( to ) Series ump one: lockwise (viewed from shaft end) : ounterclockwise (viewed from shaft end) : ncludes Screw n lange it (for shared port) : ncludes Screw n lange it (for individual port) : ncludes Welded lange it (for shared port) : ncludes Welded lange it (for individual port) uxiliary symbol must be provided in alphabetic order. Series ouble ump oot ounting it See the Series (single) pump section in page -. Series ouble ump ipe lange See the Series (single) pump section in page -. -

110 nstallation imension rawings --*-*- (lange ounting, lockwise Rotation) ndividual port Shared port Sb-/ --*-*- (lange ounting, lockwise Rotation)... Shared port Sb- U port φ. -x ndividual port φ.. uxiliary View U port uxiliary View -x Specifications odel o Volume cm /rev Weight imensions (mm) Vent Side Shaft Side kg ote) imensions shown in this diagram are for a single pump. Specifications odel o φ... φ 9... Volume cm /rev Weight imensions (mm) Vent Side Shaft Side kg ear umps ote) - ()-*-*-- (foot mounting/flange mounting, counterclockwise rotation) are the mirror image of the drawings shown above. n the case the individual port is facing upwards, the discharge port flange is positioned to the right when viewed from the shaft side. -

111 ear umps --*-*- (lange ounting, lockwise Rotation) Shared port Sb- /.. --*-*- (lange ounting, lockwise Rotation).. Shared port Sb- φ ndividual port φ -x ndividual port. 9.9 U port uxiliary View U port uxiliary View -x Specifications odel o Volume cm /rev Weight imensions (mm) Vent Side Shaft Side kg ote) imensions shown in this diagram are for a single pump. Specifications 9... φ. odel o Volume cm /rev Weight imensions (mm) Vent Side Shaft Side kg φ ote) - ()-*-*-- (foot mounting/flange mounting, counterclockwise rotation) are the mirror image of the drawings shown above. n the case the individual port is facing upwards, the discharge port flange is positioned to the right when viewed from the shaft side.

112 --*-*- (lange ounting, lockwise Rotation). Shared port Sb- / ndividual port. U port uxiliary View φ.9 -x Specifications odel o Volume cm /rev Weight imensions (mm) Vent Side Shaft Side kg ote) imensions shown in this diagram are for a single pump φ.. ear umps --*-*- (lange ounting, lockwise Rotation) ndividual port Shared port Sb- / φ.. U port uxiliary View -x Specifications odel o ---- φ 9. Volume cm /rev Weight imensions (mm) Vent Side Shaft Side kg ote) - ()-*-*-- (foot mounting/flange mounting, counterclockwise rotation) are the mirror image of the drawings shown above. n the case the individual port is facing upwards, the discharge port flange is positioned to the right when viewed from the shaft side.. -

113 ear umps - --*-*- (lange ounting, lockwise Rotation).. Shared port Sb- / --*-*- (lange ounting, lockwise Rotation). φ -x. Shared port Sb- ndividual port ndividual port 9.9 U port U port φ. -x Specifications odel o odel o Volume cm /rev Weight imensions (mm) Vent Side Shaft Side kg ote) imensions shown in this diagram are for a single pump. Specifications 9. Volume cm /rev Weight imensions (mm) Vent Side Shaft Side kg ote) - ()-*-*-- (foot mounting/flange mounting, counterclockwise rotation) are the mirror image of the drawings shown above. n the case the individual port is facing upwards, the discharge port flange is positioned to the right when viewed from the shaft side φ. φ.....

114 --*-*- (lange ounting, lockwise Rotation). Shared port Sb- / --*-*- (lange ounting, lockwise Rotation). Shared port Sb- / ndividual port. φ.9 -x ndividual port U port U port 9... φ. Specifications odel o Volume cm /rev Weight imensions (mm) Vent Side Shaft Side kg ote) imensions shown in this diagram are for a single pump φ.. ear umps φ -x Specifications odel o ---- Volume cm /rev Weight imensions (mm) Vent Side Shaft Side kg ote) - ()-*-*-- (foot mounting/flange mounting, counterclockwise rotation) are the mirror image of the drawings shown above. n the case the individual port is facing upwards, the discharge port flange is positioned to the right when viewed from the shaft side. -9

115 --*-*- (lange ounting, lockwise Rotation).. ndividual port 9 U port ear umps Shared port Sb-/ --*-*- (lange ounting, lockwise Rotation). φ.9. ndividual port -x U port Specifications odel o φ. Volume cm /rev Weight imensions (mm) Vent Side Shaft Side kg ote) imensions shown in this diagram are for a single pump Shared port Sb- φ.9. -x 9 φ. Specifications odel o Volume cm /rev Weight imensions (mm) Vent Side Shaft Side kg ote) imensions shown in this diagram are for a single pump.. ote) - ()-*-*-- (foot mounting/flange mounting, counterclockwise rotation) are the mirror image of the drawings shown above. n the case the individual port is facing upwards, the discharge port flange is positioned to the right when viewed from the shaft side. -

116 --*-*- (lange ounting, lockwise Rotation) φ. port 9 U port.. φ. h. φ.9. φ... - φ. ear umps Specifications odel o Volume cm /rev Weight imensions (mm) Vent Side Shaft Side kg *-*- (lange ounting, lockwise Rotation) φ ote) imensions shown in this diagram are for a single pump. φ port U port φ.h. φ... - φ -x (ap hole for anchoring) 9 9 φ... Specifications odel o Volume cm /rev Weight imensions (mm) Vent Side Shaft Side kg ote) imensions shown in this diagram are for a single pump. ote) - ()-*-*-- (foot mounting/flange mounting, counterclockwise rotation) are the mirror image of the drawings shown above. n the case the individual port is facing upwards, the discharge port flange is positioned to the right when viewed from the shaft side. -

117 --*-*- (lange ounting, lockwise Rotation) φ.9. port 9...h. φ.. - φ ear umps 9. -x (ap hole for anchoring) U port 9 9 φ. φ... Specifications odel o Volume cm /rev Weight imensions (mm) Vent Side Shaft Side kg ote) imensions shown in this diagram are for a single pump. ote) --*-- (foot mounting/flange mounting, counterclockwise rotation) are the mirror image of the drawings shown above. n the case the suction port flange is facing upwards, the discharge port flange position is to the right when viewed from the shaft side. ross-sectional rawing Series ouble ump art o. art ame inion shaft - inion shaft - ody - oint ey ote) n the case of a double pump, use single pump parts in addition to the parts listed above. S Series ouble ump Seal it he double pump seal kit combines a shaft side pump seal kit with a head side pump seal kit. he shaft side pump seal kit (S-S****-**) is the same as the single pump seal kit. he head side pump seal kit (S- ****-**) includes the same component parts as the single pump seal kit, except that it does not have a # oil seal. See the Series (single) pump section in page -9 for more information. ir bleed-off valve See the Series (single) pump section in page -. -

118 eatures qaximum operating pressure of to a { to kgf/cm } provides smooth operation at high pressures. ow leakage for high efficiency. wxtremely stable performance across all pressure ranges. eonformance with S recommended dimensions for most gasket installations enables a high degree of international compatibility. r highly reliable and quiet wet type solenoid valve series is available when the noise and reliability issues of solenoid valves are a problem. t comprehensive pipe-less series provides the ultimate in compact design and reliability. nstallation and aintenance qnstallation is possible in horizontal, vertical, and diagonal configurations. owever, the spool must be oriented horizontally in the case of a solenoid valve or hydraulic switching solenoid valve no-spring type. wrecision finish the mounting surface to a surface roughness of.a and degree of flatness of.mm. eake sure that the return piping from the hydraulic valve to the tank is below the fluid level surface. re sure to use only specified bolts on hydraulic valves. Use bolts of.9 strength classification or equivalent. tnstallation bolts are not included with any modular valves, the SS, S, S, S, S, S, S, and SW size solenoid valves, the - manual valve, or with sub plates. olts are included with gasket type valves other than those mentioned above. yuse s with a hardness of s-9 for valve gasket s. anagement of ydraulic perating luid quse mineral oil-based hydraulic operating fluid. wsee pages - and - for information about the viscosity of the operating fluid you need to use. ewhen using phosphate ester base operating fluid, include - at the beginning of the model number. When using water- or glycol-based hydraulic operating fluid, refer to pages - through - for details on applicable models. ontact your agent for information about other fire-resistant hydraulic fluids and special fluids. roreign matter in the hydraulic operating fluid can lead to frequent valve operation problems. Use a μm line filter to protect against contamination. erms Used in his atalog he following describes the meanings of the following terms used in this catalog: Rated low Rate: Specific guaranteed flow rate under certain fixed conditions aximum low Rate: aximum flow rate that satisfies valve function he following are the ratings that apply to the seal part list. S standard () S standard (backup ring) S standard S () ipe apertures mentioned in this catalog that are indicated as */* comply with S seal systems. odular Valve alculation of ydraulic Valve ressure oss Use the following formula to convert pressure loss values for each hydraulic valve in accordance with changes in operating fluid viscosity. ν Δ =( ν ) / Δ Δ : ressure loss a {kgf/cm } at for kinematic viscosity ν Δ : ressure loss a {kgf/cm } at for kinematic viscosity ν ν : inematic viscosity mm /s ν : inematic viscosity mm /s he graph on the right shows coefficient values (ν /ν ) / kinematic viscosity ratios (ν /ν ). <xample> or a value whose pressure loss at the rated flow rate when ν = mm /s is Δ =.a{. kgf/cm }, a change in viscosity to ν = 9mm /s produces a pressure loss of (ν /ν ) =. ccording to the graph on the right, coefficient (ν / ν ) / =.. ccordingly : Δ =.Δ =..a{.kgf/cm } =.9a{.kgf/cm } oefficient(v/v) /.... v = mm /s v = mm /s v = mm /s 9 inematic viscosity ratio(v/v) actory efault andle Setting R > 9 inematic viscosity vmm /s he following are the factory default pressure and flow rate settings for handles (screws) on adjustable valves. qressure ontrol Valve: ear the minimum control pressure wlow ontrol Valve: ear the minimum control flow rate ote, however, that R and SR relief valves are set to rated pressures. or details, see the applicable pages for each type of valve. -

119 odular Valve - ydraulic Valve Selection able ump ype odular Valves Solenoid Valves ressure ontrol Valves ame aximum ype Working lassification a ressure {kgf/cm } ote) aximum operating pressure for the modular valve series is a {kgf/cm }. aximum low Rate l/min Relief modular valve R {} rake modular valve R {} irect relief modular valve R {} ressure reducing modular valve {} Size balance type ressure reducing modular valve {} Reducing valve & modular valve {} -pressure reducing modular valve S {} Sequence modular valve Q {} ounter balance modular valve Q {} ressure switching modular valve W {} low regulator modular valve ()Y {} low control modular valve () {} heck modular valve (V) {} ilot operated check modular valve {} SS wet type solenoid valve SS {} S wet type solenoid valve S {} S lower power solenoid valve S {} S lower power solenoid valve S {} S wet type solenoid valve S {} SS() solenoid control valve SS S {} ine Solenoid Valve S {} on-leak ype Solenoid Valve S {} irectional control valve with monitoring switch SW {} oppet type directional control valve with monitoring switch SW {} Relief valve R {} R series relief valve R {} Remote control valve R() {} R- R- Solenoid control relief valve RSS() {} RS Series Solenoid control relief valve RS {} Reducing (& check) valve () {} age

120 ump ype ressure o ntrol Valves low ontrol Valves irection ontrol Valves lectro-hydraulic roportional ontrol Valves igh-response roportional low ontrol Valve aximum ype Working lassification a ressure {kgf/cm } lectrohydraulic Servo Valves ther ame aximum low Rate l/min age alancing valve R {} - ressure control (& check) valve ()Q {} - hrottle (& check) valve ()R {} - type low control valve () {} - type control valve () {} - type flow control valve () {}. - S type flow control valve ()S {}. - type flow control valve () {}, - Right angle check valve {} - n-line check valve {} - ilot check valve {} - auge cock {} - type manual valve {} - ilot relief valve R {} - Relief valve R {} - Relief and reducing valve {} - low control valve ()S {} - oad response control valve SR {} - low direction control valve S {} - odular type reducing valve {} - odular type flow control valve {} - river power amplifier - - river power compact amplifier - - ompact multi-function power amplifier igh-response proportional flow control valve igh-speed response proportional control valve amplifier - servo valve river servo amplifier ydro-logic valve S - - {} , {} - odular Valve -

121 UR VV SRS odular Valve Series verview to l/min,,a he modular valve is designed and engineered to integrate multiple hydraulic valve operations into a single unit, which eliminates the need for piping between valves and enables configuration of a circuit using a single modular valve. he result is an innovative valve system whose energy and materials efficiency provide advantages in terms of compact configuration, reliability, and more. he illustrations below show one example of a circuit configuration using this system. eatures odular Valve qigh pressure and high volume. vailable maximum operating pressure operations are,, and a {,, kgf/cm }, while maximum control flow rates are l/ min, l/min, l/min. wanging and bolting format allows for quick and easy circuit configuration as well as circuit changes and additions. eompact module configurations greatly reduce space requirements. raintenance costs are also reduced because less piping and fewer couplings mean less need for acid rinsing and flushing of pipes. tewer fluid leak problems due to pipe resonance, noise, and loose couplings. yircuit configuration is simple yet exact. ameplates on the side of the valve show S codes that make it quick and easy to determine its performance. u full lineup of models is available to meet a wide range of needs and circuit configurations: odel ype, ype 9, ype. ntegrated Structural iagram ntegrated ircuit iagram Specifications ominal iameter aximum Working aximum low Rate ossible umber ame ressure asket Surface imensions of anged (Size) a{kgf/cm } l/min Valves (ote ) Series / {} (ote ) S ---- to Series / {} (ote ) S ---- to (ote ) Series / {} S ---- to ote). he Series is available as a a {kgf/cm } maximum operating pressure version of the and Series. or details, see pages -9 and he number of ganged valves does not include solenoid valves.. Up to four valves can be ganged together if the maximum operating pressure is less than a. Series odular Valve he valve shown in the photograph is available with nominal diameter and size adjusting bolts. Use the following format for specification. ) φ (φ φ (φ ) xample: Y W Y uxiliary symbol : With handle djusting handle ock nut imensions in parentheses indicate nominal diameter. -

122 recautions when anging odular Valves ote the following precautions when ganging modular valves together in the applicable example circuits. ircuit iagram escription ncorrect orrect ylinder position not maintained Solenoid ocking ircuit and ressure Reducing ircuit eaks occur because, during the pilot check, the line being maintained flows into the pilot line of the reducing valve. ilot perate heck odular Valve ( ine) ressure Reducing odular Valve ( ine) odular Valve nsufficient cylinder output and drop in speed Solenoid ressure Reduction ircuit with Speed ontrol ressure increases due to the restrictor effect of the flow regulator. Since the pilot runs from that line, pressure reduction makes smooth operation impossible. low Regulator odular Valve (, ine, eter ut) ressure Reducing odular Valve ( ine) ylinder knocking ocking ircuit and Speed ontrol ircuit ressure is increased by the restrictor effect of the flow regulator. hat pressure moves the pilot check in the closed direction, which causes the valve to repeatedly open and close. Solenoid low Regulator odular Valve (, ine, eter ut) ilot perate heck odular Valve ( ine) -

123 Valve anging ircuit onfiguration xamples odular Valve nti-cavitation ircuit ifferential ircuit -speed ircuit igh-speed R-*- W*-** V-*- W-** - * - * -** - * - *-** orward ow-speed Surge pressure is prevented by the inertia of the actuator, and cavitation by fluid being sucked in through the opposite port, which is in negative pressure, is prevented. xample Valve odel umbers () Relief Valve R--W*- Vacuum heck Valve ---- V--W- When the cylinder advances, the rod side return fluid returns to the port and the pump discharge rate and confluence are advanced at high speed (differential). xample Valve odel umbers () heck valve *- ifferential check valve *- mportant: ylinder effective output is the rod surface area portion only. his type of circuit allows variation between two actuator speeds. t prevents low-speed shock when the actuator starts up or stops, and it used when the intermediate stroke is operated at high speed. xample Valve odel umbers () -speed late W-()- igh-speed low Regulator Valve ---- Y---W-Y- ow-speed low ontrol Valve W-Y- igh-speed ow-speed -*- W-** -

124 odular Valve Series ype ame Valve odel umber ressure djustment Range aximum (heck Valve racking ressure) low Rate a{kgf/cm } l/min S Symbol eight mm Weight kg atalog age Solenoid Valves Solenoid Valve SS--**-R-**- S--**-**- - - Relief Valves (alance ype) R-- - :* to -W - {* to.}. :. to {. to } - - *See page - for these items rake Valves (irect ype) R--W :. to {. to.} :. to {. to }. - - R--W - :. to. -9 odular Valve irect Relief Valves (irect ype) - {. to.} - :. to {. to } ressure ontrol Valves Reducing Valves (irect ype) alance ype Reducing Valves :. to. {. to.} :. to {. to.} :. to {. to } :. to. {. to.} :. to {. to.} :. to {. to } ressure ontrol Valves (Sequence Valves) ressure ontrol Valves (ounter alance Valves) Q-- - :. to {. to.} :. to {. to } Q-- - :. to {. to.} :. to {. to } ressure Switches W-- -R-**- :. to.. {. to.} :. to {. to.} -W -R-**- :. to. {. to } - -R-**- ontact apacitance V:. V: - -R-**- V: - low ontrol Valve low Regulator Valve low Regulator Valves with heck eter-ut low Regulator Valves Y Y--- (.{.}) Y--W-Y-. --Y- (.{.}) -. --Y- -

125 odular Valve Series odular Valve ype low ontrol Valves ame eter-in low Regulator Valve low ontrol Valve eter-out low ontrol Valves eter-in low ontrol Valves Valve odel umber Y--W-X- --X- --X W-Y- --Y- --Y- --W-X- --X- --X- ressure djustment Range (heck Valve racking ressure) a{kgf/cm } aximum low Rate l/min S Symbol eight mm (.{.}) (.{.}) (ontrol low Rate) ifferential ressure {.}:. to ifferential ressure{}:. to (ontrol low Rate) ifferential ressure {.}:. to ifferential ressure{}:. to Weight kg atalog age - - irection ontrol Valve omposite Valves heck Valves racking pressure - :.{.} :.{.} - - * :.{.}. *or differential circuit - - * Vacuum heck Valves V--W- (.{.}) ilot heck Valves -pressure Reducing Valves auge odular locks --W -()- racking pressure :.{.} :.{.} (uxiliary Symbol) - -()- pen Valve Ratio Standard: arent Valve % - : hild Valve % -()- arent Valve % :. to. S-- -(R)-**- {. to.} :. to igh pressure side {. to.} ow pressure side :. to ower supply :,,, {. to } ---()- --()- -W-() (:). (:.). -speed lates --W-()- (:) (:.) - Rc/ Rc/ Rc/ Rc/ Rc/ Rc/ - ther nd lates --()-. ree-flow plate ase locks (ulti-block) Sub late X-*- -Y-W*- S-Y- S-Y-- :, ports * : Sequential number from to Single side outlet W:, ports * : Sequential number from to ual side outlet one: ack side outlet : Side outlet. Rc/ Rc/ Rc/ Rc/ Rc/ Rc/

126 odular Valve Series ype ame Valve odel umber ressure djustment Range aximum (heck Valve racking ressure) low Rate a{kgf/cm } l/min S Symbol eight mm Weight kg atalog age Solenoid Valves Solenoid Valves or or SS--**-R-**-- S--**-** ressure ontrol Valve low ontrol Valve Relief Valves (alance ype) rake Valves (irect ype) irect Relief Valves (irect ype) Reducing valve ressure ontrol Valves (Sequence Valves) ressure ontrol Valves (ounter alance Valves) R-- - :* to -W - {* to.}.9 :. to {. to } - - (uxiliary Symbol). V: With vent port - - *See page - for these items. R-- -V- V. R--W :. to {. to.} :. to {. to }. - - R--W :. to {. to.} :. to {. to } ()- - -()- - -()- :. to. {. to.} :. to {. to.} :. to {. to } owever, : V -()V- - R Q- - - Q low Regulator Valve Y eter-ut low Regulator Valves :. to. {. to.} :. to. {. to.} :. to {. to } W-Y - (unction) -W-Y. : igh differential pressure regulator --Y (.{}) --Y -. --Y --Y - * here is no problem with seals and other parts when mixing these valves with modular valve design number () valves. R R R * module valve installation bolts or : esign number or : esign number Unit has commonality. lso, two -pins have been inserted diagonally for applications..9 - ote) series modular valves have two port locations: one on the port side () and one on the port side (). he port that is used depends on the model number. See page - for details about S symbols. odular Valve -9

127 odular Valve ype low ontrol Valves irection ontrol Valve ther odular Valve Series ame eter-in low Regulator Valve low ontrol Valve eter-out low ontrol Valves eter-in low ontrol Valves heck Valves Valve odel umber ressure djustment Range aximum (heck Valve racking ressure) low Rate a{kgf/cm } l/min S Symbol eight mm Weight kg Y- -W-X -W-X -. (unction) --X : igh differential --X - pressure regula-tor (.{}). --X --X (ontrol low Rate) ifferential ressure {.}:. to ifferential ressure {}:. to --W-Y-. --Y- --Y- --W-X- --X- --X * - - * (Volume control flow rate) ifferential ressure{.}:. to ifferential ressure{}: to (.{}) racking pressure :.{.} :.{.} :.{.} *or differential circuit.... atalog age Vacuum heck Valves V--W- (.{.}). - --W -()- racking pressure :.{.} :.{.} (uxiliary Symbol) ilot heck Valves - pen Valve Ratio -()-. -9 Standard : hild Valve % - arent Valve 9% -()- : arent Valve 9% Rc/ auge lock speed lates --W-()- (:) (:.) - nd lates ree low --: or --()-: or ---: or ---()-: or ---: or ---()-: or onversion plate --- (or / conversion) --- ase locks Sub late --*- S-(X)- S-(X)- S-(X)-- S-(X)-- *: Sequential number from to, port dual side outlet S : or S : or one : ack side outlet : Side outlet (:) (:). (:.). (:.). Rc/ Rc/ (Rc/) Rc/

128 Solenoid Valves ype odular Valve Series etailed S Symbols Valve odel umber etailed S Symbols or, SS--**-R-**- - S--**-** - - () () R-- - R--W - R-- - R-- - R-- -V- V low ontrol Valve ype Valve odel umber W-Y- ---Y- ---Y- --W-X- ---X- ---X R--W etailed S Symbols () () odular Valve ressure ontrol Valve R R R--W - irection ontrol Valve V--W- R W - R () R -- -()- -- -()- -- -()V- Q-- - Q-- - Q-- - Y--- R R R R ther -- --W- --() () () X-*- -X-*- () () () () () () low ontrol Valve Y--W-Y- Y---Y- Y---Y- Y--W-X- S-(X)- S-(X)- S-(X)-- S-(X)-- () () Y---X- Y---X- -

129 odular Valve ype Solenoid Valves ressure ontrol Valve odular Valve Series ame Solenoid ontrol Valves Valve odel umber SS--****-R-**- Relief valve R-- - irect Relief Valves Reducing valve ounter alance Valves R--W- - R-- - R-- - aximum Working ressure a { kgf/cm } aximum low Rate l/min ressure djustment Range (heck Valve racking ressure) a{kgf/cm } S Symbol Weight kg atalog age. - Y X :. to {. to.} :. to {. to } :. to {. to.} :. to {. to } : to {. to } ()- -- -()- :. to {. to.}. - :. to {. to } (uxiliary Symbol) ()- : xternal drain Q-- - :. to.{. to.}. :. to.{. to.} Q-- - : to {. to }. low Regulator Valves Y--- eter-in low Regulator Valve Y--W-X- heck Valve racking ressure.{.} Y---X-. Y---X- heck Valve racking ressure Y--W-Y-.{.} low ontrol Valve eter-ut low Regulator Valves eter-in low ontrol Valves Y---Y- Y---Y- --W-X- a {kgf/ cm } ---X-. ---X- heck Valve racking ressure --W-Y-.{.}... - eter-out low ontrol Valves ---Y- ---Y-. irection ontrol Valve thers heck Valves :.{.} :.{.} :.{.} Vacuum heck Valves V--W-.{.}. - ilot heck Valves onversion plate (for / conversion) --W -()- -- -()- -- -()- --- :.{.} :.{.} (uxiliary Symbol) pen Valve Ratio Standard : hild Valve % arent Valve % : arent Valve % he series modular valves do not have an (R) drain port, so they cannot be used in combination with pressure center type solenoid valves (). -

130 R UR VV Relief odular Valve eatures to l/min,a qhis modular relief valve provides maximum pressure control for a hydraulic circuit. wwide ranging applicability aximum perating ressure:, a {, kgf/cm } ressure djustment Range:. to, a {. to, kgf/cm } eshockless unload, -pressure control, and other configurations are possible by switching the solenoid valve. ontact your agent for details. Specifications odel o. R--- R--W- W R--- R--- ominal iameter (Size) / aximum Working ressure a{kgf/cm } {} aximum low Rate l/min ressure djustment Range a{kgf/cm } * to { * to.}. to {. to } * to { * to.}. to {. to } * to { * to.}. to {. to } * to { * to.}. to {. to } Weight kg.... asket Surface imensions S ---- odular Valve R---(V)- R--W- W R--- R--- / {} * to { * to.}. to {. to } * to { * to.}. to {. to } * to { * to.}. to {. to } * to { * to.}. to {. to }..9.. S ---- R--- / {} * to { * to.}. to {. to } to {. to }. S ---- ote) *See the low Rate - ow ressure characteristics on page - for information about items marked with an asterisk. andling z When using a remote control valve in a vent circuit, certain vent circuit pipe capacities can cause vibration. ecause of this, thick steel pipe with an inside diameter of φmm that is no longer than three meters is recommended. Vent piping cannot be used with the size. f a vent port is required for the size, add the auxiliary code "V". x or use as a safety valve, use a pressure override that is higher than the required circuit pressure. c ake sure that tank port back pressure is no greater than.a {.kgf/cm }, v small control flow rate can cause pressure instability. Use a control flow rate that is in accordance with the values shown below. size: t least l/min size: t least l/min size: t least l/min or applications that require a flow rate that is less than the minimum flow rate, use an R-** direct type relieve modular valve. b ote that a sub plate and installation bolts are not included. See pages -9 through -9 if these items are required. n series modular valves do not have an (R ) drain port, so they cannot be used in combination with pressure center type solenoid valves (). m onnect R--W*- () to the two -ports on the tanks. -

131 odular Valve xplanation of model o. R () R esign number ontrol port : port W:, ports : port : port ominal diameter (size), ote: or size, relationship between mounting bolts and design number is indicated as :, :. uxiliary symbol : With handle (, size) V: With vane port ( size only) ressure adjustment range, ounting method Relief modular valve xplanation of model o. : asket type esign number ressure adjustment range,, ontrol port : port, size size R---*-. ominal diameter (size) ounting method : asket type Series relief modular valve nstallation imension rawings.. 9 max. max. max. 9 max. ote) ressure is increased by clockwise (rightward) rotation of the adjusting screw (bolt), and decreased by counterclockwise (leftward) rotation. R--W*-. max... max. max. max. max.. R--*-. max. max... max.. R--*-... max. max. max. max. max. -

132 R--*-(V)- R--W*- () (). max. max. djusting stroke ( φ vent connection port). 9 (9.) ressure gauge attachment port Rc / max. max. djusting stroke max. (Rc / vent connection port).. R--*- djusting stroke max. ote) imensions in parentheses show dimensions with vent port installed (V type) djusting stroke max. R--*- odular Valve. max. max. djusting stroke ressure gauge attachment port Rc / ressure gauge attachment port Rc / 99. max. max. djusting stroke 9... R--*- djusting stroke max. 9 max. X Y Vent connection port /.. max.. ressure gauge attachment port / 9 - φ pin djusting stroke max. -

133 erformance urves ifferential ydraulic luid inematic Viscosity mm /s low Rate inimum ressure haracteristics R--*-() R--- R--*- inimum pressure a {kgf/cm }. {.}. {.}. {.} (andle fully open). {.}.. low rate l/min {.} {.} ressure low Rate haracteristics inimum pressure a {kgf/cm }. {.}. {.} (andle fully open). {.}. {.}.. R--**-() R--*- R--*- low rate l/min {.} {.} inimum pressure a {kgf/cm }.9 {9.}... {.} {.} {.} (andle fully open). {.}. {.}. {.}. {.}. {.} low rate l/min odular Valve ressure a {kgf/cm } {} {} {} {} {.} {.} {.} {.} {.} ressure a {kgf/cm } {} {.} {} {.} ressure a {kgf/cm } {} {} {} {} {} {} {} { } { } { } low rate l/min low rate l/min low rate l/min umber of djusting Screw Rotations ressure haracteristics R--*- R--*-() R--*- ressure a {kgf/cm } {} {} {} ype {} {} {} ype ressure a {kgf/cm } ype ype {} {} {} {} {} {} ressure a {kgf/cm } ype {} {} {} {} {} ype {} ype {} {} umber of adjusting screw rotations umber of adjusting screw rotations umber of adjusting screw rotations -

134 ross-sectional rawings R--*- Seal art ist (it odel umber RS-R*-) art o. 9 9 art ame art umber Q'ty W S-(R-9) R-- R-9 9 R-9 S-(R-9) ote). he materials and hardness of the conform with S.. Specify, W,, or for the asterisk (*) in the kit model number. art o. 9 9 art ame ody Spool oppet Seat Sleeve lunger ushing Retainer Spring Spring late Screw ut lug lug Screw nob ut Screw odular Valve R--*-V- 9 9 Seal art ist (it odel umber RS-R*) art o. art ame art umber Q'ty // W V R-9 R-9 9 R-- art o art ame ody over Spool oppet Seat Seat Sleeve lunger Retainer Spring Spring Screw kit Screw ut late Screw lug lug ackup ring in andle kit Screw nob ut Screw S-(R-9) R-9 S-9(R-9) ackup ring - ote). he materials and hardness of the conform with S.. ackup ring indicates S --**.. Specify, W, or V for the asterisk (*) in the kit model number. -

135 R--*- odular Valve Seal art ist (it odel umber RS-R) art o art ame art umber Q'ty R-9 9 S-(R-9) R-- S-(R-9) art o art ame ody over Spool oppet Seat Sleeve lunger Retainer late Spring Spring Spring Screw late ut Screw hoke in lug lug S-(R-9) S-(R-9) R-9 R-9 9 R-9 ote) he materials and hardness of the conform with S. -

136 rake odular Valve eatures R UR VV to l/min. to, a qhis modular pressure control valve prevents abnormal pressure when the actuator stops, enabling smooth stops. wwide ranging applicability aximum operating pressure: a{kgf/cm } ressure djustment Range:. to, a {. to, kgf/cm } Specifications odel o. R--W- W R--- R--- ominal iameter (Size) / aximum Working ressure a{kgf/cm } {} aximum low Rate l/min ressure djustment Range a{kgf/cm }. to {. to.}. to {. to }. to {. to.}. to {. to }. to {. to.}. to {. to } Weight kg... asket Surface imensions S ---- odular Valve R--W- W R--- / {}. to {. to.}. to {. to }. to {. to.}. to {. to }.. S ---- R---. to {. to.}. to {. to }. andling zhe pressure adjustment range is expressed using cracking pressure. xor use as a safety valve, use a pressure override that is higher than the required circuit pressure. cote that a sub plate and installation bolts are not included. See pages -9 through -9 if these items are required. xplanation of model o. R () esign number uxiliary symbol ote: or size, relationship between mounting bolts and design number is indicated as :, :. : With handle ressure adjustment range, ontrol port W:, ports : port : port ominal diameter (size), ounting method reak modulator valve : asket type -9

137 nstallation imension rawings R--W*-. max... max. max.. ote) ressure is increased by clockwise (rightward) rotation of the adjusting screw (bolt), and decreased by counterclockwise (leftward) rotation. odular Valve max. R--*-. max... max. max.. R--*-. max... max. max.. 9 max. R--W*- 9 max. djusting stroke. 9 max. max. 9 max.. djusting stroke 9 max. R--*- 9 max. max. djusting stroke. 9 9 R--*- 9 max. max. 9 djusting stroke... djusting stroke. max. djusting stroke. max. -

138 erformance urves ressure low Rate haracteristics R--**- ifferential ydraulic luid inematic Viscosity mm /s R--**- ressure a {kgf/cm } umber of djusting Screw Rotations ressure haracteristics R--**- racking pressure a {kgf/cm } R--W*- Seal art ist (it odel umber RS-R*-) art o. {} {} {} {} {} 9 ross-sectional rawings art ame low rate l/min art umber {9.} {.} {.} {} ype ype umber of adjusting screw rotations {} {} {} { } Q'ty W R-- R-9 S-(R-9) R-9 R-9 ote). he materials and hardness of the conform with S.. Specify W,, or for the asterisk (*) in the kit model number. ressure a {kgf/cm } 9 R--**- racking pressure a {kgf/cm } low rate l/min {} {} {} {} {} {9.} {.} {.} {} ype {} ype umber of adjusting screw rotations 9 9 {} {} {} { } art o. art ame ody oppet Seat lunger ushing Retainer uide Spring 9 late Screw ut all Screw 9 nob ut Screw odular Valve -

139 R--*- 9 9 odular Valve Seal art ist (it odel umber RS-R*) art o. art ame art umber Q'ty W R-- S-(R9) R-9 R-9 ackup ring - ackup ring - ote). he materials and hardness of the conform with S.. ackup ring indicates S --**.. Specify W,, or for the asterisk (*) in the kit model number. art o art ame ody lug oppet Seat lunger ushing Retainer uide Spring Screw kit Screw ut late rifice ackup ring ackup ring in andle kit Screw nob ut Screw -

140 R R UR VV irect Relief odular Valve to l/min. to,,a eatures qhis modular relief valve provides maximum pressure control for a hydraulic circuit. wwide ranging applicability aximum Working ressure:, a {, kgf/cm } ressure djustment Range:. to,, a {. to, kgf/cm } Specifications odel o. R--W- W R--- R--- ominal iameter (Size) aximum Working ressure a{kgf/cm } aximum low Rate l/min / {} ressure djustment Range a{kgf/cm }. to {. to.}. to {. to }. to {. to.}. to {. to }. to {. to.}. to {. to } Weight kg... asket Surface imensions S ---- odular Valve R--W- W R--- / {}. to {. to.}. to {. to }. to {. to.}. to {. to }.. S ---- R--- R--W- W W. to {. to.}. to {. to }. to {. to.}. to {. to } to {. to }.. R--- / {}. to {. to.}. to {. to } to {. to }. S ---- R---. to {. to.}. to {. to } to {. to }. andling zhe pressure adjustment range is expressed in terms of cracking pressure. xor use as a safety valve, use a pressure override that is higher than the required circuit pressure. cank port back pressure changes cracking pressure by the corresponding amount. vote that a sub plate and installation bolts are not included. See pages -9 through -9 if these items are required. b series modular valves do not have an (R ) drain port, so they cannot be used in combination with pressure center type solenoid valves (). xplanation of model o. R W (), size esign number ote: or size, relationship between mounting bolts and design number is indicated as :, :. uxiliary symbol : With handle ressure adjustment range, ontrol port W:, ports : port : port ominal diameter (size), ounting method : asket type irect relieve modular valve -

141 xplanation of model o. R W unction symbol esign number ominal diameter (size) ounting method ressure adjustment range,, ontrol port : irect type : asket type Series relief modular valve size W:, ports : port : port odular Valve nstallation imension rawings R--W*-. max. max... max.. ote) ressure is increased by clockwise (rightward) rotation of the adjusting screw (bolt), and decreased by counterclockwise (leftward) rotation. max. R--*-. max... max. max.. R--*-. max... max. max.. 9 max. 9 max. -

142 R--W*- max. max. max. djusting stroke 9 9 djusting stroke 9 max. R--*-. max. max. djusting stroke. 9 ressure gauge attachment port Rc / R--*- ressure gauge attachment port Rc /. max. max.. 9 djusting stroke odular Valve djusting stroke max. R--W*- djusting stroke max. 9 max.. X Y R--* max.. max. R--*- - φ pin.. max. - φ pin - φ pin.. max.. max. -

143 odular Valve erformance urves ifferential ydraulic luid inematic Viscosity mm /s ressure low Rate haracteristics R--**- ressure a {kgf/cm } {} {} {} {} {} 9 low rate l/min {9.} {.} {.} R--**- umber of djusting Screw Rotations ressure haracteristics 9 low rate l/min R--W*- R--**- R--**- R--W*- racking pressure a {kgf/cm } {} ype {} ype umber of adjusting screw rotations {} {} { } ressure a {kgf/cm } racking pressure a {kgf/cm } umber of adjusting screw rotations {} {} {} {} {} {9.} {.} {.} {} {} ype {} {} {} ype { } ressure a {kgf/cm } racking pressure a {kgf/cm } {} {} {} {} {} {} low rate l/min ype { } {} ype ype umber of adjusting screw rotations {} {} {} ross-sectional rawings R--*- 9 art o. art ame 9 Seal art ist (it odel umber RS-R*-) art o. art ame art umber Q'ty W R-- R-9 S-(R-9) R-9 R-9 ote).he materials and hardness of the conform with S..Specify W,, or for the asterisk (*) in the kit model number. 9 9 ody oppet Seat lunger ushing Retainer uide Spring late Screw ut ushing all Screw nob ut Screw -

144 R--*- 9 art o. art ame Seal art ist (it odel umber RS-R*) art o. art ame art umber Q'ty W R-- S-(R-9) R-9 R-9 ackup ring - ackup ring - ote).he materials and hardness of the conform with S..ackup ring indicates S --**..Specify W,, or for the asterisk (*) in the kit model number ody oppet Seat lunger Retainer uide Spring Screw kit Screw ut late rifice lug ackup ring ackup ring in andle kit Screw nob ut Screw odular Valve R--* art o. art ame Seal art ist (it odel umber RS-R*) 9 9 ody lug oppet Seat lunger Retainer uide late Spring Spring Screw late hoke ut all ackup ring in art o. art ame art umber Q'ty W R-- S-(R-9) S-(R-9) 9 R-9 S-(R--) ackup ring - ote).he materials and hardness of the conform with S..ackup ring indicates S --**..Specify W,, or for the asterisk (*) in the kit model number. -

145 ressure Reducing odular Valve eatures RSSUR RU UR VV to l/min,a qhis modular valve makes the pressure in part of the circuit lower than that of the main circuit. wven when pressure changes in the primary main circuit, the reduced secondary pressure is maintained at a constant level. eaximum perating ressure:, a {, kgf/cm } odular Valve Specifications odel o (V)- --- ominal iameter (Size) / / / andling zwhen using a remote control valve in a vent circuit, certain vent circuit pipe capacities can cause vibration. ecause of this, thick steel pipe with an inside diameter of φ mm that is no longer than three meters is recommended. Vent piping cannot be used with the size. f a vent port is required for the size, add the auxiliary code "V". xor the size, the drainage can be allowed to escape through the port. n the case of a valve with the auxiliary symbol, however, run a return pipe from the drain discharge port directly to the tank. aximum Working ressure a{kgf/cm } {} {} {} xplanation of model o. () ontrol port aximum low Rate l/min but : ressure djustment Range a{kgf/cm }. to.{. to.}. to {. to.}. to {. to }. to.{. to.}. to {. to.}. to {. to }. to {. to.}. to {. to } cwith the sizes, piping is not required because drainage can be allowed to escape from the gasket side drain port. n the case of a valve with the auxiliary symbol, however, run a return pipe from the drain discharge port directly to the tank. vote that a change in drain back pressure causes a change in setting pressure. bwith the, sizes, the flow rate is limited at low pressures. See the ressure- low Rate haracteristics on pages - for more information. note that a sub plate and installation bolts are not included. See pages esign number uxiliary symbol,, size ressure adjustment range,,, : port ominal diameter (size), ounting method : asket type Weight kg ote: or size, relationship between mounting bolts and design number is indicated as :, ;. : See notes and under "andling." : With handle (, size) V: With vent port ( size) asket Surface imensions. S S S through -9 if these items are required. m series modular valves do not have an (R ) drain port, so they cannot be used in combination with pressure center type solenoid valves ().,With the, sizes, the control port can be changed by altering the attachment orientation of the back cover. See the installation diagram for more information. fter making this change, be sure also to make the other changes in accordance with the model number indicated on the nameplate. ressure reducing modular valve -

146 xplanation of model o. () --*- --*- esign number uxiliary symbol ressure adjustment range, ontrol port : port ominal diameter (size) ounting method : asket type Series reducing modular valve nstallation imension rawings.... max.. max. ressure gauge attachment port Rc / max max. size : See note under "andling." ote) ressure is increased by clockwise (rightward) rotation of the adjusting screw (bolt), and decreased by counterclockwise (leftward) rotation. --*-(V)- 9 Vent connection port ( ) Rc / 9. max. rain port Rc/ max.. max. ote). onversion to port control is possible by changing the back cover. ort control is determined by plug orientation.. When replacing the back cover, be sure also to change the nameplate to the applicable model type.. he tightening torque of the back cover bolts is: () to m ( to kgf-cm).. max.. ressure gauge attachment port Rc / --*- lug lug --*- odular Valve ote). onversion to, port control is possible by changing the back cover. ort control is determined by plug orientation.. When replacing the back cover, be sure also to change the nameplate to the applicable model type.. he tightening torque of the back cover bolts is: () to m ( to kgf-cm). lug lug lug --*- --*- --*-. 9. max. Vent connection port / X Y. 9. max. ressure gauge attachment port / - φ 9 9 rain port / -9

147 erformance urves ifferential ydraulic luid inematic Viscosity mm /s ressure oss haracteristics --*- ressure oss a {kgf/cm } low rate l/min {.} {.} {.} {.} {.} {.} {.} --*- ressure oss a {kgf/cm }.. R..... low rate l/min {.} {.} {.} {.} {.} {.} {.} --**- ressure oss a {kgf/cm } Y X Y X low rate l/min {.} {.} {.} {.} {.} {.} {.} odular Valve ressure low Rate haracteristics ressure a {kgf/cm } {} {} {} {} {} {} {} ressure a {kgf/cm } {.} {.} {.} {.} {.} {.} {.} low rate l/min low rate l/min **- ressure a {kgf/cm } {} {} {.} {.} ressure a {kgf/cm } {} {} {.} {.} ressure a {kgf/cm } {} {} {} {.} {.} {.} low rate l/min low rate l/min low rate l/min -

148 ressure rain Rate haracteristics --*- rain flow rate cm /min {} {} {} {} {} etermine it through the maximum value when designing the circuit. --- rain flow rate cm /min Supply ressure a {kgf/cm } --*- rain flow rate cm /min {} {} {} {} Setting pressure a {kgf/cm } {} --- rain flow rate cm /min {.} {.} {.} {.} {.} Setting pressure a {kgf/cm } odular Valve {} {} {} {} {} Setting pressure a {kgf/cm } umber of djusting Screw Rotations ressure haracteristics --*- --*- --*- {} {} {} {} ype {} {} {} ype ype {} {} {} ype {} {} {} {} ype {} {} ype {} ype {} {} {} ype umber of adjusting umber of adjusting umber of adjusting screw rotations screw rotations screw rotations ressure a {kgf/cm } ressure a {kgf/cm } ressure a {kgf/cm } -

149 odular Valve ross-sectional rawings --- Seal art ist (it odel umber RS--) art o. ote) he materials and hardness of the conform with S. --- art ame 9 art umber S-(R-9) R-- R-9 R-9 Q'ty 9 art o. 9 9 art ame ody Spool ush rod ushing Retainer uide Spring Spring late Screw ut lug nob ut Screw ote) art number is used in the case of pressure adjustment range type only. Seal art ist (it odel umber RS--) art o. art ame 9 art umber S-(R-9) Q'ty art o. 9 art ame ody Spool ushing Retainer uide Spring late Screw ut lug nob ut Screw R-- R-9 R-9 ote) he materials and hardness of the conform with S. -

150 --* rain port Rc / "" plug ote) raining through the escape valve piped to the drain discharge port is standard. : - *-- osition the end plate (-/) to the drain discharge port, then connection is made to the port if the "" plug (U- /) is removed. :-- *-. Seal art ist (it odel umber RS--) art o. art ame art umber R-9 R-- R-9 S-(R-9) R-9 S-(R-9) Q'ty ote) he materials and hardness of the conform with S. art o. 9 art ame ody over Spool oppet Seat ushing Retainer hoke Spring Spring late Screw ut art o. 9 9 art ame ut Screw lug lug lug lug nob ut Screw in in odular Valve art o. art ame art o. art ame Seal art ist (it odel umber RS-*-) art o. art ame art umber R-9 R-- R-9 S-(R-9) R-9 Q'ty 9 ody over Spool oppet Seat ushing Retainer hoke Spring Spring late Screw ut ut Screw 9 9 lug lug lug lug nob ut Screw in in S-(R-9) ote) he materials and hardness of the conform with S. -

151 --*- odular Valve 9 9 Seal art ist (it odel umber RS-**) art Q'ty art ame art umber o. 9 R-9 S-(R-9) R-- S-(R-9) R-9 R-9 R-9 ote). he materials and hardness of the conform with S.. Specify (internal drain) or (external drain) for the asterisk (*) in the kit model number. rain port / ote) n the standard configuration, --*- does not require a plug, while -- *-- requires a plug (U-/) and drain pipe from the cover. art o. 9 9 art ame ody over over Spool oppet Seat lunger Retainer late ollar hoke Spring Spring Spring Screw late ut Screw in lug lug -

152 S Y RSSUR RU UR VV alanced iston ype ressure Reducing odular Valve eatures l/min. to a qhis modular valve makes the pressure in part of the circuit lower than the main circuit. wven when pressure changes in the primary main circuit, the reduced secondary pressure is maintained at a constant level. eompared with the direct type, this type of valve has outstanding ressure-low Rate haracteristics, and a superior flow rate in the low pressure control range. raximum operating pressure: a {kgf/cm } Specifications odel o ominal iameter (Size) / aximum Working ressure a{kgf/cm } {} aximum low Rate l/min ressure djustment Range a{kgf/cm }. to.{. to.}. to {. to.}. to {. to }. to.{. to.}. to {. to.}. to {. to } Weight kg.9.9 asket Surface imensions S ---- odular Valve ---. to.{. to.}. to {. to.}. to {. to }.9 xplanation of model o. () esign number uxiliary symbol : With handle ressure adjustment range,, ontrol port : port : port : port ominal diameter (size) ounting method : asket type alanced piston type pressure reducing modular valve andling zsee the ressure-low Rate haracteristics for information about how the flow rate is controlled at low pressures. xote that a change in tank port back pressure causes a change in setting pressure. cvent piping is not possible. vote that a sub plate and installation bolts are not included. See pages -9 through -9 if these items are required. nstallation imension rawings -- *-. max.... max. ressure gauge. max. attachment port Rc /.. ote) ressure is increased by clockwise (rightward) rotation of the adjusting screw (bolt), and decreased by counterclockwise (leftward) rotation. --*-.. max.... max... max. ressure gauge attachment port Rc /. max.. max. -

153 odular Valve erformance urves ydraulic perating luid inematic Viscosity mm /s ressure oss haracteristics --*- ressure oss a {kgf/cm} ressure low Rate haracteristics --* - ressure a {kgf/cm} ross-sectional rawing --*- low rate l/min low rate l/min {.} {.} {.} ressure rain Rate haracteristics --**- --*- Seal art ist (it odel umber RS-*-) 9 art Q'ty art ame art umber o. S-(R-9) R-- R-9 R-9 9 R-9 ote). he materials and hardness of the conform with S.. Specify,, or for the asterisk (*) in the kit model number. {.} {.} {.} {.} {} {} {.} {.} rain rate cm/min ressure a {kgf/cm} {} {} {} {} ressure adjustment range, ressure adjustment range Setting pressure a{kgf/cm } low rate l/min 9 {} {.} {.} {.} {.} {.} {.} {.} umber of djusting Screw Rotations ressure haracteristics --*- ressure a {kgf/cm} art o. 9 9 ype ype art ame ody Spool oppet Seat ushing Retainer ushing Spring Spring late Screw ut lug lug nob ut Screw hoke {} {} {} {} {} {} ype umber of adjusting screw rotations -

154 RSSUR RU UR VV ressure Reducing odular Valve to l/min,a eatures qhis modular valve makes the pressure in part of the circuit lower than the main circuit. wven when pressure changes in the primary main circuit, the reduced secondary pressure is maintained at a constant level. eaximum perating ressure:, a {, kgf/cm } Specifications odel o ominal iameter (Size) aximum Working ressure a{kgf/cm } aximum low Rate l/min / {} / {} andling zwhen using a remote control valve in a vent circuit, certain vent circuit pipe capacities can cause vibration. ecause of this, thick steel pipe with an inside diameter of φmm that is no longer than three meters is recommended. Vent piping cannot be used with the, sizes. xwith the, sizes, the flow rate is limited at low pressures. See the ressure- low Rate haracteristics on page - and - for more information. but : / {} xplanation of model o. () uxiliary symbol ressure djustment Range a{kgf/cm }. to.{. to.}. to {. to.}. to {. to }. to.{. to.}. to {. to.}. to {. to }. to.{. to.}. to {. to.}. to {. to }. to.{. to.}. to {. to.}. to {. to }. to {. to.}. to {. to }. to {. to.}. to {. to } cor the size, the drainage can be allowed to escape through the port. n the case of a valve with the auxiliary symbol, however, run a return pipe from the drain discharge port directly to the tank. vwith the sizes, piping is not required because drainage can be allowed to escape from the gasket side drain port. n the case of a valve with the auxiliary symbol, however, run a return pipe from the drain discharge port directly to the tank. esign number ote: or size, relationship between mounting bolts and design number is indicated as :, ;. ressure adjustment range,,,, size : See notes and under "andling." : With handle (, size) Weight kg asket Surface imensions S ---- S ---- S ---- bote that a change in drain back pressure causes a change in setting pressure. note that a sub plate and installation bolts are not included. See pages -9 through -9 if these items are required. m series modular valves do not have an (R ) drain port, so they cannot be used in combination with pressure center type solenoid valves ().,With the, sizes, the control port can be changed by altering the attachment orientation of the back cover. See the installation diagram for more information. fter making this change, be sure also to make the other changes as in accordance with the model number indicated on the nameplate..use the port control valve concurrently with the size central all-portblock () solenoid valve if when the valve is in the central position and external pressure may cause the pressure at the control port to exceed the set pressure. odular Valve ontrol port : port : port ominal diameter (size), ounting method : asket type ressure reducing (and check) modular valve -

155 odular Valve xplanation of model o. () --*- esign number uxiliary symbol ressure adjustment range, ontrol port : port : port ominal diameter (size) ounting method size : asket type Series pressure reducing modular valve nstallation imension rawings. ressure gauge attachment port Rc / max.... max.. max... : See note under "andling." ote) ressure is increased by clockwise (rightward) rotation of the adjusting screw (bolt), and decreased by counterclockwise (leftward) rotation. --*-. max..... max... max. ressure gauge attachment port Rc / --*- 9. max. 9. max. ressure gauge attachment port Rc /. max. 9. max.. max.. rain port Rc / 9 max. -

156 --* max. rain port Rc / max.. max.. max.. ressure gauge attachment port Rc / --*- ote). onversion to port control is possible by changing the back cover. ort control is determined by plug orientation.. When replacing the back cover, be sure also to change the nameplate to the applicable model type.. he tightening torque of the back cover bolts is: () to m ( to kgf-cm). lug lug --*- odular Valve --*- ote). onversion to, port control is possible by changing the back cover. ort control is determined by plug orientation.. When replacing the back cover, be sure also to change the nameplate to the applicable model type.. he tightening torque of the back cover bolts is: () to m ( to kgf-cm). lug lug lug --*- --*- --*-. 9. max. X Y. 9. max. ressure gauge attachment port / - φ pin Vent connection port / 9 9 rain port / -9

157 erformance urves ydraulic perating luid inematic Viscosity mm /s ressure oss urve --*- ressure oss a {kgf/cm } , (ain valve fully open), {.} {.} {.} {.} {.} {.} {.} --*- ressure oss a {kgf/cm } R, (ain valve fully open), {.} {.} {.} {.} {.} {.} {.} odular Valve --**- ressure oss a {kgf/cm } low rate l/min Y X Y X, (ain valve fully open), low rate l/min {.} {.} {.} {.} {.} {.} {.} low rate l/min ressure low Rate haracteristics -- - ressure a {kgf/cm } low rate l/min {.} {.} {.} {.} {.} {.} {.} --- ressure a {kgf/cm } low rate l/min {.} {.} {.} {.} {.} {.} {.} -

158 **- ressure a {kgf/cm } ressure a {kgf/cm } {} {} {.} {.} ressure a {kgf/cm } {} {} {} {.} {.} {.} low rate l/min low rate l/min low rate l/min ressure rain Rate haracteristics --*- rain flow rate cm /min --*- --*- rain flow rate cm /min {} {} {} {} {} {} {} {} {} {} Supply ressure Setting pressure a{kgf/cm } a{kgf/cm } etermine it through the maximum value when designing the circuit. --- rain flow rate cm /min {.} {.} {.} {.} {.} Setting pressure a{kgf/cm } odular Valve rain flow rate cm /min {} {} {} {} {} Setting pressure a{kgf/cm } umber of djusting Screw Rotations ressure haracteristics --**- ressure a {kgf/cm } {} ype {} {} {} ype {} {} {} ype {} --**-*- ressure a {kgf/cm } ype ype ype {} {} {} {} {} {} --**- ressure a {kgf/cm } ype ype {} {} {} {} {} {} umber of adjusting screw rotations umber of adjusting screw rotations umber of adjusting screw rotations -

159 odular Valve ross-sectional rawings --- Seal art ist (it odel umber RS--) art o. art ame art umber Q'ty S-(R-9) R-- R-9 R-9 ote) he materials and hardness of the conform with S. --- Seal art ist (it odel umber RS--) art o. art ame art umber Q'ty S-(R-9) R-- R-9 R-9 ote) he materials and hardness of the conform with S. --* art o. 9 9 art ame ody Spool ush rod ushing Retainer uide Spring Spring late Screw ut lug nob ut Screw ote) art number is used in the case of pressure adjustment range type only. art o art ame ody Spool ushing Retainer uide Spring late Screw ut lug nob ut Screw - rain port Rc/ Seal art ist (it odel umber RS-*-) art o. art ame art umber Q'ty R-9 R-- R-9 S-(R-9) R-9 S-(R-9) ote). he materials and hardness of the conform with S.. Specify or for the asterisk (*) in the kit model number. "" plug ote) he discharge port of the --**- has the plug (-/), the "" plug (U-/) is not attached. he --**-- does not have a plug in the drain discharge port with the "" plug attached, so pipe must be run from the drain discharge port to provide drainage. art o. 9 art ame ody over Spool oppet Seat ushing Retainer hoke Spring Spring art o. 9 art ame late Screw ut ut Screw lug lug lug lug art o. 9 art ame nob ut Screw in in

160 Seal art ist (it odel umber RS-*-) art o. art ame art umber Q'ty R-9 R-- R-9 S-(R-9) R-9 S-(R-9) ote). he materials and hardness of the conform with S.. Specify or for the asterisk (*) in the kit model number. art o. 9 art ame ody over Spool oppet Seat ushing Retainer hoke Spring Spring late Screw ut ut Screw art o. 9 9 art ame lug lug lug lug nob ut Screw in in odular Valve --**- 9 9 Seal art ist (it odel umber RS-**) art o. art ame art umber Q'ty 9 R-9 S-(R-9) R-- S-(R-9) R-9 R-9 R-9 ote). he materials and hardness of the conform with S.. Specify (internal drain) or (external drain) for the asterisk (*) in the kit model number. rain port / art o. 9 9 art ame ody over over Spool oppet Seat lunger Retainer late ollar hoke Spring Spring Spring Screw late ut Screw in lug lug ote) n the standard configuration, --**- does not require a plug, while -- **-- requires a plug (U-/) and drain pipe from the cover. -

161 wo-ressure Reducing odular Valve eatures RSSUR RU UR VV R W RSS S l/min. to a qwhen the pressure in part of the circuit is lower than the main circuit, this modular valve controls pressure by switching the low pressure to secondary pressure (high pressure, low pressure). wven when pressure changes in the primary main circuit, the reduced secondary pressure is maintained at a constant level. eaximum perating ressure:, a {., kgf/cm } odular Valve Specifications odel o. ominal iameter (Size) aximum Working ressure a{kgf/cm } S----**- {.} / {} Solenoid Specifications aximum low Rate l/min ressure djustment Range a{kgf/cm } ow pressure side. to. {. to.}. to {. to.} igh pressure side. to.{. to.}. to {. to.}. to {. to } Weight kg asket Surface imensions. S ---- odel o. Rated Voltage Starting urrent olding urrent olding ower S--**-- - V /Z./../. /W V /Z./../.9 /W V. W V. W xplanation of model o. S (R) esign number ow pressure side pressure adjustment range, igh pressure side pressure adjustment range,, ontrol port : port ominal diameter (size) ounting method ower supply : V, : V : V, : V uxiliary symbol : With handle (standard) R: With indicator light (optional) R: With surgeless type indicator light (ption) : asket type ressure reducing modular valve for two-press setting here is no, combination. andling zsee the ressure-low Rate haracteristics for information about how the flow rate is controlled at low pressures. xote that a change in tank port back pressure causes a change in setting pressure. cnstability occurs when there is a small setting pressure differential between the high pressure and low pressure, so be sure to maintain at least the minimum pressure differentials described below. ype: t least.a {. kgf/cm }, ype: t least.a {. kgf/cm } vvent piping is not possible. bote that a sub plate and installation bolts are not included. See pages -9 through -9 if these items are required. now pressure is attained when the solenoid is on. mhe coil surface temperature increases if this pump is kept continuously energized. nstall the valve so there is no chance of it being touched directly by hand.,he wiring in the connector is the same as the S series wet type solenoid valve. (See page -9 ) -

162 nstallation imension rawings S--*-(R)-**-... ressure gauge attachment port Rc /.(.) 9() ote). imensions in parentheses apply in the case of a solenoid.. ressure is increased by clockwise (rightward) rotation of the adjusting handle, and decreased by counterclockwise (leftward) rotation erformance urves ydraulic perating luid inematic Viscosity mm /s max... 9 max.. max. (9.).. ow pressure side igh pressure side 9 odular Valve ressure oss haracteristics S----**- ressure oss a {kgf/cm }. {.}.., (ain valve fully open) {.} {.},. {.}. {.}. {.}. {.} low ratel/min ressure low Rate haracteristics S----**- (ype ) {} ressure a {kgf/cm } low ratel/min umber of djusting Screw Rotations ressure haracteristics S--**- {} {} {} {.} {.} {.} {.} {} ressure low Rate haracteristics S----**- (ype ) ressure a {kgf/cm } low ratel/min {.} {.} {.} {.} {.} {.} {.} ressure rain Rate haracteristics S----**- rain flow rate cm /min {.} {.} {.} {.} {.} {.} {.} Setting pressure a{kgf/cm } S--*--**- (ype ) ressure a {kgf/cm }. {.} {.}. {.} {.}. {.} {.}. {.} low ratel/min ressure rain Rate haracteristics S----**- rain flow rate cm /min {.} {.} {.} {.} {} {} {} Setting pressure a{kgf/cm } ressure a {kgf/cm } {} ype ype {} {} ype umber of adjusting screw rotations {} {} -

163 ross-sectional rawing S--*-(R)-** ow pressure side igh pressure side odular Valve Seal art ist (it odel umber RS-S-) art o. art ame art umber Q'ty R-- R-9 R-9 9 S-(R-9) R-9 S-(R-9) ackup ring or S- ote) he materials and hardness of the conform with S. art o. 9 art ame ody ody Spool Spool oppet Seat Seat ushing Sleeve Retainer Retainer ushing hoke Spring Spring Screw nob art o. 9 9 art ame ut Spring Spring Screw Solenoid assy Screw lug lug ackup ring late -

164 SQU UR VV Sequence odular Valve eatures to l/min a qhis modular valve is a pressure control valve used for sequential actuator operations and for maintaining main circuit pressure. wressure adjustment is possible across a wide range, from. to a {. to kgf/cm }. eaximum perating ressure: a {kgf/cm } Specifications odel o. Q--- Q--- ominal iameter (Size) aximum Working ressure a{kgf/cm } aximum low Rate l/min / {} / {} ressure djustment Range a{kgf/cm }. to {. to.}. to {. to }. to.{. to.}. to. {. to.}. to {. to } Weight kg asket Surface imensions. S S ---- odular Valve xplanation of model o. Q () esign number ote: or size, relationship between mounting bolts and design number is indicated as :, :. uxiliary symbol ype : nternal pilot xternal drain ontrol port ressure adjustment range : port ominal diameter (size), : With handle (, size) andling zhe pressure adjustment range is expressed in terms of cracking pressure. xnstall this valve directly above the sub plate or manifold. cwhen two or more of these valves are ganged in sequence, make sure the setting pressure differential between them is at least a {.kgf/cm }. vote that a sub plate and installation bolts are not included. See pages -9 through -9 if these items are required. Q--*- ounting method : asket type Sequence modular valve nstallation imension rawings. 9 max... max... max... ote) ressure is increased by clockwise (rightward) rotation of the adjusting screw (bolt), and decreased by counterclockwise (leftward) rotation. Q--*-. max.. max. djusting stroke.. max. djusting stroke max. -

165 erformance urves ydraulic perating luid inematic Viscosity mm /s ressure oss haracteristics Q--*- ressure oss a {kgf/cm }....., (ain valve fully open), low rate l/min {.} {.} {.} {.} {.} Q--- ressure oss a {kgf/cm } , (ain valve fully open), low rate l/min {.} {.} {.} {.} {.} {.} {.} odular Valve ressure low Rate haracteristics Q--*- ressure a {kgf/cm } ressure Rise ressure rop {} {} {} {} {} 9 {9.} {.} low rate l/min Q--*- ressure a {kgf/cm } low rate l/min ressure Rise ressure rop {} {} {} {} {} {.} {.} {.} {.} umber of djusting Screw Rotations ressure haracteristics Q--*- ressure a {kgf/cm } ype ype umber of adjusting screw rotations {} {} {} {} {} {} Q--*- {} {} ype {} {} {} {} ype {} ype {} ressure a {kgf/cm } umber of adjusting screw rotations -

166 ross-sectional rawings Q--*- Q--* Seal art ist (it odel umber RS-Q-) art o. art ame art umber S-(R-9) R-9 9 R-- R-9 Seal art ist (it odel umber RS-Q) Q'ty 9 R-9 ote) he materials and hardness of the conform with S. ote) he spring is not included with pressure adjustment ype. art o. art ame art umber (9) - R-9 S-(R-9) R-9 ote) he materials and hardness of the conform with S. Q ty art o. art ame ody Spool iston lunger ushing Retainer uide Spring 9 late Screw ut hoke lug all 9 Screw nob ut Screw art o. art ame ody over over Spool Sleeve uide lunger hoke 9 Spring Spring Screw kit - Screw - ut - ut - in - late Screw Screw all in 9 andle kit 9- Screw 9- nob 9- ut 9- Screw 9- odular Valve -9

167 ounter alance odular Valve eatures UR UR VV qhis modular valve is used to control actuator back pressure and for other pressure control valve applications. to l/min a wressure adjustment is possible across a wide range, from. to a {. to kgf/cm }. eaximum perating ressure:, a {, kgf/cm } odular Valve Specifications odel o. Q--- Q--- Q--- Q--- Q--- Q--- ominal iameter (Size) andling zhe pressure adjustment range is expressed in terms of cracking pressure. xrun tank port piping directly to the tank, and ensure that back pressure is as small as possible. aximum Working ressure a{kgf/cm } aximum low Rate l/min / {} / {} / {} ressure djustment Range a{kgf/cm }. to {. to.}. to {. to }. to {. to.}. to {. to }. to.{. to.}. to.{. to.}. to {. to }. to.{. to.}. to.{. to.}. to {. to }. to.{. to.}. to.{. to.}. to {. to }. to.{. to.}. to.{. to.}. to {. to } cote that a sub plate and installation bolts are not included. See pages -9 through -9 if these items are required. Weight kg asket Surface imensions S ---- S ---- S ---- v series modular valves do not have an (R ) drain port, so they cannot be used in combination with pressure center type solenoid valves (). xplanation of model o. Q (), size ype ontrol port esign number ote: or size, relationship between mounting bolts and design number is indicated as :, :. uxiliary symbol nternal pilot nternal drain : port : port ominal diameter (size), ounting method ressure adjustment range : asket type ounter balance modular valve : With handle (, size) -

168 xplanation of model o. Q esign number size ressure adjustment range,, ype ontrol port ounting method nternal pilot nternal drain : port : port ominal diameter (size) : asket type Series counter balance modular valve nstallation imension rawings Q--*-. 9 max... max. max.. ote) ressure is increased by clockwise (rightward) rotation of the adjusting screw (bolt), and decreased by counterclockwise (leftward) rotation. Q--*-. 9 max.. max.. max.. odular Valve max. max. Q--*- djusting stroke. max.. max. Q--*-. max.. max. djusting stroke.. djusting stroke max. max. djusting stroke -

169 Q--*- Q--*- 9 max. X Y max. ressure gauge attachment port / max. X Y. 99. max. ressure gauge attachment port / - φ pin - φ pin odular Valve erformance urves ydraulic perating luid inematic Viscosity mm /s ressure oss haracteristics Q--*- ressure oss a {kgf/cm }. {.}. {.}. {.}., {.}. {.}. {.}. {.} low rate l/min ressure - low Rate haracteristics Q-- * ressure a {kgf/cm } 9 Q--- ressure oss a {kgf/cm }..... (ain valve fully open) low rate l/min Q--- ressure Rise * - ressure Rise ressure rop ressure Rise Q--*- ressure rop ressure rop *- low rate l/min {} {} {} {} {} {9.} {.} {.} ressure a {kgf/cm } low rate l/min {.} {.} {.} {.} {.} {} {} {} {} {.} {.} {.} {.} {.} ressure oss a {kgf/cm }.... Q-- ressure a {kgf/cm } Y X Y X, (ain valve fully open) {.} {.}. {.} low rate l/min low rate l/min {.} {.} {} {} {} {} {.} {.} {.} {.} {.} -

170 ressure a {kgf/cm } umber of djusting Screw Rotations ressure haracteristics Q-- * - Q--* - Q--* * * * - {} {} {} {} {} {} ype ype {} {} {} {} {} {} ype {} {} {} ype {} {} {} ype ype {} {} {} {} ype {} ype {} umber of adjusting umber of adjusting umber of adjusting screw rotations screw rotations screw rotations ross-sectional rawings Q--*- ressure a {kgf/cm } 9 Seal art ist (it odel umber RS-Q*-) art Q ty art ame art umber o. S-(R-9) R-9 R-9 R-9 9 ressure a {kgf/cm } art o. art ame ody over Spool oppet Spring lunger Retainer uide 9 Spring late Screw ut Screw all 9 Screw nob ut Screw odular Valve ote). he materials and hardness of the conform with S.. Specify or for the asterisk (*) in the kit model number. Q--*- ote) he spring is not included with pressure adjustment ype. 9 9 Seal art ist (it odel umber RS-Q*) art Q ty art ame art umber o. () - R-9 S-(R-9) R-9 ote). he materials and hardness of the conform with S.. Specify or for the asterisk (*) in the kit model number. art o art ame ody over over Spool Sleeve uide lunger hoke Spring Spring Spring Screw kit Screw ut ut in late Screw Screw all in andle kit Screw nob ut Screw -

171 Q--*- odular Valve 9 9 Seal art ist (it odel umber RS-Q*) art Q ty art ame art umber o. S-(R-9) 9 R-9 S-(R-9) R-9 ote) he illustration shows the configuration for pressure adjustment ranges ype and ype. or ype, there is no # piston or # choke. art o. 9 9 art ame ody over over Spool Sleeve uide late lunger hoke hoke Spring Spring Screw late ut ut Screw ackup ring all in in lug ackup ring - R-9 ote). he materials and hardness of the conform with S.. ackup ring indicates S --**.. Specify or for the asterisk (*) in the kit model number. -

172 ressure Switch odular Valve odel o. W---R-**- W---R-**- W---R-**- W--W-R-**- W W lectrical Specifications icro Switch anufacturer: mron odel o. SS- perating nvironment eatures Specifications RSSUR SW UR VV ominal iameter (Size) l/min a qhis modular valve detects pressure changes inside the hydraulic circuit and opens and closes an electrical circuit accordingly. wigh precision detection, high precision circuit control, outstanding reliability. eaximum operating pressure: a {kgf/cm } rndicator light built into the connector shows operational status at a glance. aximum Working ressure a{kgf/cm } aximum low Rate l/min / {} ontact apacitance (Resistive oad) V V V V echanical ife t least lectrical ife t least (,.,cosφ =) ontact Resistance nsulation Resistance llowable perating requency ust Resistance/Water Resistance Rank mbient emperature perating luid Ω maximum (initial value) t least Ω times/minute (electrical) S 9 - to (non-condensation) il emperature - to Use a fluid that is within llowable kinematic viscosity Range to mm /s{cst} both ranges. iltration μm maximum xplanation of model o. W ()R esign number ower supply specification : type ess than V : type ess than V R: With indicator light (standard) : With manual handle (optional) ressure djustment Range a{kgf/cm }. to.{. to.}. to {. to.}. to {. to }. to.{. to.}. to {. to.}. to {. to }. to.{. to.}. to {. to.}. to {. to }. to.{. to.}. to {. to.}. to {. to } ressure adjustment range :. to.a(. to.kgf/cm ) :. to a(. to.kgf/cm ) :. to a(. to kgf/cm ) ontrol port ominal diameter (size) : port : port : port W:, ports t double type is also available for control of both port and port in a compact configuration. Weight kg.... asket Surface imensions S ---- andling zsee the detailed explanation on the next page for information about wiring inside connectors. xontacts are normally open type only, not normally closed type. cn addition to load wiring, power supply wiring is also required to illuminate the indicator light. See the wiring diagram for more information. vf the connector interferes with other valves, remove the two switch installation bolts and change the installation orientation. f interference is caused in all orientations, install an interference blanker plate on top of the connector. ontact your agent if an interference blanker plate is required. bote that a special type of connector is required. he connector is not interchangeable with the one for the S type solenoid valve. nf you cannot remove the connector when wiring, remove the switch installation bolts and then remove the connector. he tightening torque for the installation bolts is to m { to kgf/cm}. mhis valve has drain volume the same as the - (decompression valve) the port for detecting structural pressure.,o not include inductive components or capacitive components in the loaded circuit that connects to the valves because they significantly reduce the life of the micro-switches. ontact us for details. odular Valve ounting method : asket type ressure switch modular valve -

173 onnectors odel o. ower supply specification Wiring When signal input device (load) remote common is plus W W erminal is U- oad () connected to load, while erminals U- oad () and are connected to power (erminal to +). lectrical ircuit iagram ormal open type with indicator odular Valve R-W R-W When signal input device (load) common is minus W erminal is connected to load, while erminals and are connected W U- U- to power (erminal to ). When signal input device (load) is W erminal is connected to load, while erminals W U- U- and are connected to power (erminal is nonpolar). connector Switch inside of valve ressure increase causes indicator to light. ircuit closed () ressure decrease causes indicator to go out. ircuit open () ormal open type with indicator connector eon lamp Switch inside of valve ressure increase causes indicator to light. ircuit closed () ressure decrease causes indicator to go out. ircuit open () ote). he connector wiring connector port size is.. he compatible cable diameter for the connector is φ to φ. ust resistance and water resistance is lost for any cable outside this range.. he connector can be installed in different orientations are 9-degree increments by changing the orientation of the terminal block.. he connector is designed so the cover cannot be removed unless the installation screws are removed.. Use for round type and Y type solderless terminals.. he tightening torque of screws used for securing connectors and for terminals is. to.m. nstallation imension rawings W-- *-R-*-. max. max. 9 max... ( ) (+) to (V) (+) ( ) to (V) to (V) Signal input device (+) common mode oad () oad () Signal input device ( ) common mode oad () oad () Signal input device ( spec) ote) ressure is increased by clockwise (rightward) rotation of the adjusting screw, and decreased by counterclockwise (leftward) rotation. W--*-R-* max. max. max. 99 Valve diameter φ to φ.. Valve diameter φ to φ 99 art replacement provides variability in 9 increments. art replacement provides variability in 9 increments. W--W*-R-*- max. max. max.. Valve diameter φ to φ max. max... max. max.. 99 art replacement provides variability in 9 increments. 99 max. -

174 erformance urves ydraulic perating luid inematic Viscosity mm /s ressure oss haracteristics W--**-R-**- ressure oss a {kgf/cm }....,, {.} {.} {.} {.} Setting ressure ifferential haracteristics W--* -R-**- ifferential a {kgf/cm }. {.}. aximum {.}. {.}. ype ype inimum {.} W--*-R-**- ifferential a {kgf/cm }... aximum inimum {.} {.} {.} low rate l/min umber of djusting Screw Rotations ressure haracteristics W--**-R-**- {} {} {} ype {} ressure a {kgf/cm } {.}{.} {.} {.}{.} {.} {.} Setting pressure a {kgf/cm } {} {} {} {} {} Setting pressure a {kgf/cm } odular Valve ype ype umber of adjusting screw rotations {} {} ross-sectional rawing W--*-R-* art o. 9 art ame ody over over iston ush rod Retainer uide Spring Screw ut hoke onnector asket asket icro switch assy Separator art o. 9 9 art ame Screw Screw Screw lug nob ut Screw late late Seal art ist (it odel umber RS-W*-) art Q'ty art ame art umber o. W R-- S-(R-9) S-(R-9) S-9(R--) S-(R--) R-- R-9 ote) Specify, W,, or for the asterisk (*) in the kit model number. -

175 low Regulator odular Valve eatures qhis modular valve is used to control actuator speed and for other flow control valve applications. W RUR UR VV to l/min,a w wide range of models are available for and port control, or port control, and or port control. eaximum perating ressure:, a {, kgf/cm } odular Valve Specifications odel o. Y--- ominal iameter (Size) aximum Working ressure a{kgf/cm } aximum low Rate l/min / {} heck Valve racking pressure a{kgf/cm } Weight kg. Y---.{.}. Y--W-X- Y--W-Y- Y--- Y--W-X- Y--W-Y- Y--- Y--W-X- Y--W-Y- andling zn a size application where control differential pressure is large, use of an type makes adjustment easier. xote that a sub plate and installation bolts are not included. See pages -9 through -9 if these items are required. c series modular valves do not have an (R ) drain port, so they cannot be used in combination with pressure center type solenoid valves (). / {} / {}.{.}.{.}.....{.}.9..{.}..{.}...{.}...{.}..{.} xplanation of model o. Y W () Y () ontrol port.. asket Surface imensions S ---- S ---- S ---- esign number ote: or size, relationship between mounting bolts and design number is indicated as, :,, :. uxiliary symbol : With handle (, size only) ontrol mechanism ominal diameter (size), ounting method X: eter-in Y: eter-out ontrol function one: Standard : igh-differential pressure type ( size only) W:, ports : port : port : port : port ( size only) : asket type, size low regulator modular type Y : With check valve Y : Without check valve ( size port control) -

176 xplanation of model o. Y W Y esign number size ontrol mechanism X: eter-in Y: eter-out ontrol port ominal diameter (size) ounting method : port W:, ports : port : port : asket type Series flow regulator modular valve Y---. nstallation imension rawings.. max... ote) he control flow rate is increased by counter clockwise (leftward) rotation of the adjusting screw. odular Valve max. Y--- Y--W- X Y -. max... max.. max.. max.. djusting stroke. max. 9 max. djusting stroke max.. 9 max. (.).. ote) imensions in the parentheses are for the Y--W-X-. -9

177 Y--- X Y - Y--- X Y -. djusting stroke 9 max.... max.. max... 9 max... djusting stroke. max. max. djusting stroke. max. (.). (.). djusting stroke. max. odular Valve ote) imensions in the parentheses are for the Y---X-. Y--- max.. max. 9 djusting stroke. 9 ote) imensions in the parentheses are for the Y---X-. Y--W- X Y - djusting stroke.. max. max. max djusting stroke 99. max. (). djusting stroke max. ote) imensions in the parentheses are for the Y--W-X-. Y--- X Y - Y---X Y - djusting stroke. 9 max. max. 9 9 max. max. 9. djusting stroke. () ().. djusting stroke. max. djusting stroke.. max. ote) imensions in the parentheses are for the Y---X-. ote) imensions in the parentheses are for the Y---X-. -

178 Y--- Y--W- X Y max. X Y 9 max max.. X Y.. max. - φ pin () - φ pin Y---X Y - Y--- X Y - odular Valve 9. max. - φ pin 9 max.. () () - φ pin. 9 max. 9. max. ote) imensions in the parentheses are for the Y--*-X-. -

179 ressure oss haracteristics Y--- ressure oss a {kgf/cm } erformance urves ydraulic perating luid inematic Viscosity mm /s low rate l/min {.} {.} Y---, (Restrictor full open) {.}., (Restrictor full open),, {.} {.} {.} {.} ressure oss a {kgf/cm } low rate l/min {.} {.} {.} {.} {.} {.} {.} Y--W-Y- (Y--W-X-) ressure oss a {kgf/cm } () () () () (Restrictor full open) () () () () (Restrictor full close) () () () () (Restrictor full open) low rate l/min {.} {.} {.} {.} {.} {.} {.} {.} {.} {.} odular Valve Y--- ressure oss a {kgf/cm }....., (Restrictor full open), Y--W-Y- (Y--W-X-) ressure oss a {kgf/cm } low rate l/min {.} {.} {.} {.} {.}. {.} Y X. {.}. {.}. Y X {.}. () () {.} () () (Restrictor full open). () () {.}. () () (Restrictor full close) {.} () (). () () {.}. (Restrictor full open) {.}. {.} low rate l/min Y--W-Y- (Y--W-X-) ressure oss a {kgf/cm }..... () () () () (Restrictor full open) () () () () (Restrictor full close) () () () () (Restrictor full open) low rate l/min {.} {.} {.} {.} {.} Y---. {.} Y X. {.}. {.}. {.} Y X., (ain valve fully open) {.}., {.}. {.}. {.}. {.}. {.} low rate l/min ressure oss a {kgf/cm } Stroke low Rate haracteristics Y--- Y--- Y--*-*- low rate l/min ifferential pressure a{kgf/cm } ifferential pressure a{ kgf/cm } ifferential pressure.a{ kgf/cm } ifferential pressure a{ kgf/cm } Stroke mm (number of adjusting screw rotations) low rate l/min ifferential pressure a{kgf/cm } ifferential pressure a{ kgf/cm } ifferential pressure.a{ kgf/cm } ifferential pressure a{ kgf/cm } Stroke mm (number of adjusting screw rotations) low rate l/min ifferential pressure a{kgf/cm } ifferential pressure a{ kgf/cm } ifferential pressure.a{ kgf/cm } ifferential pressure a{ kgf/cm } Stroke mm (number of adjusting screw rotations) -

180 Y---()- Y--W-()Y- Y--- ifferential pressure a{kgf/cm } ifferential pressure a{.kgf/cm } ifferential pressure a{.kgf/cm } ifferential pressure a{ kgf/cm } ifferential pressure.a{.kgf/cm } ifferential pressure.a{.kgf/cm } ifferential pressure.a{ kgf/cm } type: ressure differential a{ kgf/cm } type: ressure differential a{ kgf/cm } ifferential pressure a{ kgf/cm } 9 9 Stroke mm (number of Stroke mm (number of Stroke mm (number of adjusting screw rotations) adjusting screw rotations) adjusting screw rotations) low rate l/min Y--W-Y- low rate l/min ifferential pressure a{kgf/cm } ifferential pressure a{ kgf/cm } ifferential pressure.a{ kgf/cm } ifferential pressure a{ kgf/cm } Stroke mm (number of adjusting screw rotations) low rate l/min low rate l/min odular Valve ross-sectional rawings Y--- Y art o. 9 art ame ody Retainer late Screw ut Screw nob ut Screw Seal art ist (it odel umber S-Y-) art o. art ame art umber Q ty R-9 S-(R-9) ote) he materials and hardness of the conform with S. art o. 9 art ame ody hrottle Retainer Spring late Screw Ring ut Screw nob ut Screw Seal art ist (it odel umber S-Y-) art o. art ame art umber Q ty 9 R-9 S-(R-9) R-9 ote) he materials and hardness of the conform with S. -

181 Y---Y- odular Valve 9 Seal art ist (it odel umber S-Y*-) art o. art ame art umber Q'ty W R-9 S-(R-9) R-9 ote). he materials and hardness of the conform with S.. Specify W,, or for the asterisk (*) in the kit model number. art o. 9 art ame ody hrottle ushing Retainer Spring late Screw ut -ring Screw nob ut Screw Y--- 9 Y---Y- 9 Seal art ist (it odel umber S-Y) art Q'ty art ame art umber o. () - R-9 9 S-(R-9) R-9 ote) he materials and hardness of the conform with S. art o art ame ody over hrottle Spring Screw kit Screw ut ut in late Screw lug in andle kit Screw nob ut Screw Seal art ist (it odel umber S-Y*) art Q'ty art ame art umber o. W () - R-9 9 S-(R-9) R-9 ote). he materials and hardness of the conform with S.. Specify W,, or for the asterisk (*) in the kit model number. art o art ame ody over over hrottle Spring Screw kit Screw ut ut in late Screw in andle kit Screw nob ut Screw -

182 Y--- Y---Y- 9 9 Seal art ist (it odel umber S-Y) art o. art ame art umber Q'ty R-9 S-(R-9) R-9 S-(R-9) ackup ring - ote). he materials and hardness of the conform with S.. ackup ring indicates S --**. art o. 9 art ame ody hrottle Retainer late Spring late Screw ut ut ackup ring in in Seal art ist (it odel umber S-Y*) art o. art ame art umber S- (R-9) Q'ty W R-- S- (R-9) S- (R-9) ackup ring - ote). he materials and hardness of the conform with S.. ackup ring indicates S --**.. Specify W,, or for the asterisk (*) in the kit model number. art o. 9 art ame ody over over hrottle late Spring late Screw ut ut Screw ackup ring in in odular Valve -

183 v W R UR VV low ontrol odular Valve (ressure and temperature compensated) eatures to l/min,,a qhis modular valve is used to control actuator speed and for other flow control valve applications. w wide range of models are available for and port control, or port control, and port control. Specifications e pressure compensation mechanism ensures that the control flow rate does not change, even when there is pressure fluctuation. rhe control flow rate remains stable, even when oil temperature changes. taximum perating ressure :,, a {,, kgf/cm } odular Valve odel o W-X- --W-Y- ominal iameter (Size) / aximum Working ressure a{kgf/cm } {} {} ontrol low Rate l/min. to (differential pressure: a{.kgf/cm }). to (differential pressure:a{kgf/cm }). to (differential pressure: a{.kgf/cm }). to (differential pressure:a{kgf/cm }). to (differential pressure: a{.kgf/cm --- }). to (differential pressure:a{kgf/cm }) --W-X- / {}. to (differential pressure: a{.kgf/cm }) --W-Y- to (differential pressure:a{kgf/cm }) --W-X- --W-Y- / {} andling z or flow rate control, make sure that the pressure differential between the input port and output port is at least a {.kgf/cm }. See the low Rate - inimum ifferential ressure haracteristics for information about the - and - maximum control flow rate. xplanation of model o. W Y to (differential pressure:a{kgf/cm }) to (differential pressure:a{kgf/cm }) to (differential pressure:a{kgf/cm }) x he control flow rate is increased by counter clockwise (leftward) rotation of the flow rate control knob. c ressure rate control knob rotation resistance will increase as the pressure increases. owever, do not use a spanner or other tool that fits around the knob to turn it. nstead,, size esign number ote: or size, relationship between mounting bolts and design number is indicated as :, :. ontrol mechanism X: eter-in Y: eter-out aximum control flow rate ontrol port W:, ports : port : port : port ominal diameter (size), heck Valve racking pressure a{kgf/cm } Weight kg.. {.}. {.} {.}. {.}. {.}. {.} asket Surface imensions S ---- S ---- S ---- insert a mm hex spanner into the hex hole in the center of the knob and rotate it that way. v fter adjusting the flow rate, fix it in place by turning the lock screw on the end of the knob to the right. b ote that a sub plate and installation bolts are not included. See pages -9 through -9 if these items are required. n series modular valves do not have an (R ) drain port, so they cannot be used in combination with pressure center type solenoid valves (). m low rate fluctuation is ±% within the temperature range of to. ounting method : asket type low control modular type : With check valve : Without check valve ( port control) -

184 xplanation of model o. W Y size esign number ontrol mechanism X: eter-in Y: eter-out aximum control flow rate ontrol port W:, ports : port : port ominal diameter (size) ounting method : asket type max. max. max. Series flow control modular valve nstallation imension rawings --- low rate control knob.. ocking screw (Width across flat. mm). ote) he control flow rate is increased by counter clockwise (leftward) rotation of the flow rate control knob. --W-X/Y- max.. djusting stroke.. max. max.. odular Valve ex bolt hole for adjusting flow rate (Width across flat mm) () () () ote) imensions in the parentheses are for the --W-X-. ---X/Y- ---X/Y-. max. 9. max. 9. max.. max. ote) imensions in the parentheses are for the ---X-. ote) imensions in the parentheses are for the ---X djusting stroke.. max. 9. max. djusting stroke. --W-X/Y- max.. max.. max. low rate control knob ocking screw (Width across flat. mm) 9. (.9) ex bolt hole for adjusting flow rate (Width across flat mm). ote) imensions in the parentheses are for the --W-X-. -

185 ---X/Y- ---X/Y- djusting stroke 9. max.. max.. 9. max.. max.. djusting stroke low rate control knob odular Valve 9. (.9) ote) imensions in the parentheses are for the ---X-. --W-X/Y- 9 max.. X Y max. - φ pin low rate control knob 9 ocking screw (Width across flat. mm) () ote) imensions in the parentheses are for the --W-X-. ex bolt hole for adjusting flow rate (Width across flat mm) ---X/Y- () - φ pin. max.. max. ote) imensions in the parentheses are for the ---X-. ---X/Y- (). - φ pin max.. max. ote) imensions in the parentheses are for the ---X-. ressure ontrol low Rate haracteristics --W-Y- --W-Y {.}. Y X {.}. {.}. {.}. {.} Y X. (Restrictor full close) (Restrictor {.}. {.} full open). {.} (Restrictor full close). {.}. {.}. (Restrictor full open) {.}. {.} (Restrictor full open). {.}. {.}. {.}. {.} low rate l/min low rate l/min {} {} {} {} {} {} ressure a {kgf/cm } 9. (.9) ote) imensions in the parentheses are for the ---X Y {.}. {.}. {.}. {.}.. (Restrictor full close) {.}., (Restrictor full open) {.} (andle fully open),. (Restrictor full open) {.}. {.}.. {.} {.}.. {.}. {.}. {.}. {.} ressure oss a {kgf/cm } erformance urves ydraulic perating luid inematic Viscosity mm /s ressure oss haracteristics ressure oss a {kgf/cm } low rate l/min ressure oss a {kgf/cm } ressure oss a {kgf/cm } low rate l/min ressure oss a {kgf/cm } low rate l/min low rate l/min {.} {.} {.} -

186 --*-* W-*- low rate l/min {} {} {} {} {} {} ressure a {kgf/cm } low rate l/min {} {} {} {} {} {} ressure a {kgf/cm } low rate l/min {} {} {} {} {} {} ressure a {kgf/cm } il emperature ontrol low Rate haracteristics --W-* *-*- low rate l/min {} {} {} {} {} {} {} ressure a {kgf/cm } low rate l/min il temperature low rate l/min il temperature odular Valve W-*- --W-*- low rate l/min il temperature low rate l/min il temperature low rate l/min il temperature low Rate inimum ifferential ressure haracteristics --*-*- --W-Y-. {.}.. {.}.. {.}.. {.}.. {.}.. {.}.. {.}.. {.}.. {.}.. {.}. inimum differential pressure a {kgf/cm } low rate l/min inimum differential pressure a {kgf/cm } low rate l/min {.} {.} {.} {.} {.} {.} {.} {.} {.} {.} -9

187 ross-sectional rawings --- odular Valve Seal art ist (it odel umber S--) art o. art ame ote) he materials and hardness of the conform with S. ---Y- 9 art umber Q'ty R-9 S-(R-9) R-9 9 R-9 R-- art o. 9 art ame ody iston Sleeve ushing Retainer nob ial Spring late Screw Screw Screw Seal art ist (it odel umber S-*-) art o. art ame ote). he materials and hardness of the conform with S.. Specify W,, or for the asterisk (*) in the kit model number. --- art umber 9 9 Q'ty W R-- S-(R-9) 9 S-(R-9) R-- art o. 9 9 art ame ody hrottle iston Rod ushing Retainer uide nob ial Spring Spring Spring late Screw Screw Screw 9 Seal art ist (it odel umber S-) art o. art ame art umber Q'ty - R-- art o art ame ody over iston Sleeve Retainer Screw kit nob Screw Screw Screw ial Spring late Screw in S-(R-9) R-9 R-- R-9 - ote) he materials and hardness of the conform with S.

188 ---Y Seal art ist (it odel umber S-*) art o. art ame art umber Q'ty W R-- S-(R-9) R-- R-9 ote). he materials and hardness of the conform with S.. Specify W,, or for the asterisk (*) in the kit model number. art o art ame ody hrottle iston Sleeve Rod ushing Retainer uide Screw kit nob Screw Screw Screw ial Spring Spring late in odular Valve ---Y- 9 9 Seal art ist (it odel umber S-*) art o. art ame art umber Q'ty W S-(R-9) R-9 S-(R-9) R-9 9 ackup ring - ackup ring - ote). he materials and hardness of the conform with S.. ackup ring indicates S --**.. Specify W,, or for the asterisk (*) in the kit model number. art o. 9 9 art ame ody over over hrottle iston nob ial Spring Spring late Screw Screw Screw Screw ackup ring ackup ring in -

189 heck odular Valve eatures UR VV to l/min,a qhis modular valve is a check valve that prevents reverse-flow. w he,, sizes include types that can also be used as suction and differential circuits. e aximum perating ressure:, a {, kgf/cm } odular Valve Specifications odel o ominal iameter (Size) aximum Working ressure a{kgf/cm } aximum low Rate l/min / {} racking pressure a{kgf/cm }. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.} V--W-. {.} / {}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.} V--W-. {.} / {}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.} V--W-. {.}. Weight kg asket Surface imensions S ---- S ---- S ---- andling z ifferential circuit can be easily configured at by attaching - **-* above the -**-* on the subplate. (See the figure to the right.) x ote that a sub plate and installation bolts are not included. See pages -9 through -9 if these items are required. c series modular valves do not have an (R ) drain port, so they cannot be used in combination with pressure center type solenoid valves (). -*- *-* -*- *-* orward ifferential circuit adjustment -

190 xplanation of model o. (V), size esign number ote: or size, relationship between mounting bolts and design number is indicated as :, :. racking pressure,, ontrol port : port : port W:, ports (, vacuum check) : port ifferential circuit at set :, ports ominal diameter (Size), ounting method : asket type Vacuum check modular valve (, size) heck modular valve (, size) xplanation of model o. (V) size odular Valve esign number racking pressure,, ontrol port : port : port W:, ports (vacuum check) : port ifferential circuit at set :, ports ominal diameter (Size) ounting method : asket type Series vacuum check modular valve Series check modular valve -

191 nstallation imension rawings * - --*- V--W-... (.) (.) odular Valve ote) imensions in the parentheses are for the --*-. -- *- --*- --* V--W- -- *- --* X Y φ pin 9.. X Y 9 - φ pin -

192 V--W-..9 X Y φ pin erformance urves ydraulic perating luid inematic Viscosity mm /s odular Valve ressure oss haracteristics --*- V--W- --*- ressure oss a {kgf/cm } , (ype ), (ype ), (ype ), {.} {.} {.} {.} {.} {.} {.} ressure oss a {kgf/cm } ,,,, {.} {.} {.} {.} {.} {.} {.} ressure oss a {kgf/cm } (ype ) (ype ) (ype ) {.} {.} {.} {.} {.} {.} low rate l/min low rate l/min low rate l/min --*- --*- --*-. {.}. {.}.. {.}. {.}.. {.}. {.}. (ype ). (ype ) {.}. {.}. (ype ) (ype ). {.}. {.}. (ype ). {.}. {.}. ressure oss a {kgf/cm } low rate l/min ressure oss a {kgf/cm } (ype ) low rate l/min ressure oss a {kgf/cm } (ype ) (ype ) (ype ) low rate l/min {.} {.} {.} {.} {.} {.} V--W- --*- --*-. {.} Y X. {.}.. {.}. {.}. Y X. {.}., (ype ) {.}., (ype ). {.}, (ype ). {.},.. {.}. {.}.. {.}. {.}. ressure oss a {kgf/cm } low rate l/min ressure oss a {kgf/cm } low rate l/min ressure oss a {kgf/cm } Y X Y X, (ype ), (ype ), (ype ), low rate l/min {.} {.} {.} {.} {.} {.} -

193 --*- --*- V--W- ressure oss a {kgf/cm } Y X Y X (ype ) (ype ) (ype ), {.} {.} {.} {.} {.} {.} ressure oss a {kgf/cm } Y X Y X (ype ) (ype ) (ype ) {.} {.} {.} {.} {.} {.} ressure oss a {kgf/cm } Y X Y X {.} {.} {.} {.} {.} {.} low rate l/min low rate l/min low rate l/min odular Valve ross-sectional rawings * - --*- 9 art o. art ame ody oppet Spring seat Spring late art o. art ame ody oppet Spring seat Spring late art o. 9 art ame ody oppet all Seat Spring seat Spring late Seal art ist (it odel umber S-*-) art Q'ty art ame art umber o. S-(R-9) R-9 ote). he materials and hardness of the conform with S.. Specify,, or for the asterisk (*) in the kit model number. V--W- Seal art ist (it odel umber S--) art Q'ty art ame art umber o. S-(R-9) 9 R-9 ote) he materials and hardness of the conform with S. art o. art ame ody oppet uide Spring late lug Seal art ist (it odel umber S-VW) art Q'ty art ame art umber o. W S-(R-9) R-9 ote) he materials and hardness of the conform with S. -

194 --*- --*- 9 art o. art ame 9 9 ody over oppet Spring late Screw lug in art o. 9 art ame ody over oppet Spring late Screw lug in --*- --*- 9 9 Seal art ist (it odel umber S-*) art o. art ame art umber Q'ty S-(R-9) 9 R-9 ote). he materials and hardness of the conform with S.. Specify,, or for the asterisk (*) in the kit model number. art o. art ame 9 ody over oppet Spring late Screw lug in art o. art ame Seal art ist (it odel umber S-) art o. art ame art umber Q'ty R-9 S-(R-9) R-9 ote) he materials and hardness of the conform with S. 9 ody over lug oppet Seat Spring late Screw lug in odular Valve V--W- 9 Seal art ist (it odel umber S-VW) art o. art ame art umber Q'ty R-9 S-(R-9) 9 R-9 W art o. art ame art o. art ame art o. art ame ody over oppet Spring late Screw 9 in -

195 --*- V--W- 9 9 art o. 9 art ame ody oppet Spring seat Spring late in odular Valve Seal art ist (it odel umber S-*) art o. art ame art umber Q ty S-(R-9) R-9 S-(R-9) ote). he materials and hardness of the conform with S.. Specify,,, or for the asterisk (*) in the kit model number. art o. Seal art ist (it odel umber S-VW) art art ame art umber Q ty o. S-(R-9) 9 R-9 S-(R-9) ote) he materials and hardness of the conform with S. art ame ody oppet Spring seat Spring late in -

196 R UR VV ilot perated heck odular Valve to l/min,a eatures qhis modular valve is used to prevent actuator self-running and to maintain actuator position. waximum perating ressure:, a {, kgf/cm } Specifications odel o. --W- W W-- W ominal iameter (Size) aximum Working ressure a{kgf/cm } aximum low Rate l/min / {} racking pressure a{kgf/cm }. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.} rea Ratio heck Valve ilot iston Seat eedle Valve Seat Weight kg.. asket Surface imensions S ---- odular Valve {.}. {.} {.}. {.} --W- W. {.}. {.} ---. {.}. {.} W-- W / {]. {.}. {.}. {.}. {.}. S {.}. {.} {.}. {.} --W- W. {.}. {.} ---. {.}. {.} W-- W / {}. {.}. {.}. {.}. {.}. S {.}. {.} {.}. {.} andling z ote that when the size has the auxiliary symbol "," tank port back pressure can cause the small valve to open, making it impossible to maintain pressure. x f tank port back pressure causes the small valve to open and make it impossible to maintain pressure with the, size, use a direct type with auxiliary symbol "." c inimum pilot pressure fluctuates with the input side pressure during reverse flow. perate the valve so pressure is at least twice as high as the required pressure obtained using the minimum pilot pressure characteristics graph. v ote that a sub plate and installation bolts are not included. See pages -9 through -9 if these items are required. b series modular valves do not have an (R ) drain port, so they cannot be used in combination with pressure center type solenoid valves (). -9

197 odular Valve xplanation of model o. W (), size esign number ote: or size, relationship between mounting bolts and design number is indicated as :, :. uxiliary symbol : With shock-resistant mechanism ( size only) : o small valve poppet ( size only) racking pressure :.a{.kgf/cm } :.a{.kgf/cm } ontrol port W:, ports : port : port ominal diameter (size), ounting method : asket type ilot operated check modular valve xplanation of model o. W () esign number size uxiliary symbol : o small valve poppet racking pressure :.a{.kgf/cm } :.a{.kgf/cm } ontrol port W:, ports : port : port ominal diameter (size) ounting method : asket type Series pilot operated check modular valve nstallation imension rawings --**-() **-()-.. --**-() X Y.. φ - pin -

198 erformance urves ydraulic perating luid inematic Viscosity mm /s ressure oss haracteristics --W*- ressure oss a {kgf/cm } , (ype ), (ype ), low rate l/min {.} {.} {.} {.} {.} {.} {.} --W*-- ressure oss a {kgf/cm } low rate l/min, (ype ), (ype ), {.} {.} {.} {.} {.} {.} {.} --W*-()-... uxiliary symbol: one uxiliary symbol:. (ype ).. ressure oss a {kgf/cm } (ype ) low rate l/min {.} {.} {.} {.} {.} {.} ressure oss haracteristics (Reverse ree low) --W*- --W*-. {.}.. {.}. Y X. {.}.. {.}.. {.}.. {.}. ressure oss a {kgf/cm } ressure oss a {kgf/cm } Y X, (ype ), (ype ), {.} {.} {.} {.} {.} {.} odular Valve low rate l/min low rate l/min inimum ilot ressure haracteristics --**- --**-- --W*-()- inimum pilot pressure a {kgf/cm } {} {} {} {} {} {} {} {} {} {} Reverse flow inlet side pressure a {kgf/cm } inimum pilot pressure a {kgf/cm } ain check valve Small valve {} {} {} {} {} Reverse flow inlet side pressure a {kgf/cm } {} {} {} {} {} inimum pilot pressure a {kgf/cm } uxiliary symbol: one uxiliary symbol: {.} {.} {.} {.} {.} {.} {} {} {} {} {} Reverse flow inlet side pressure a {kgf/cm } --W*-()- inimum pilot pressure a {kgf/cm } uxiliary symbol: one uxiliary symbol: {} {} {} {} {} {} {} {} {} {} {} {} {} Reverse flow inlet side pressure a {kgf/cm } -

199 ross-sectional rawings --*- 9 --*-- 9 art o. 9 art ame ody oppet iston Seat Rod ushing Spring seat uide Spring all late Seal art ist (it odel umber S-*-) odular Valve art o. art ame art umber Q ty W S-(R-9) R-9 ote). he materials and hardness of the conform with S.. Specify W,, or for the asterisk (*) in the kit model number. --*- 9 art o. 9 art ame ody over oppet oppet iston Seat ushing Spring late Screw in --**-- Seal art ist (it odel umber S-*) art o. art ame art umber Q ty W S-(R-9) R-9 9 ote). he materials and hardness of the conform with S.. Specify W,, or for the asterisk (*) in the kit model number. -

200 --*- 9 art o. 9 art ame ody over over oppet oppet iston Seat ushing Spring late Screw in --**-- Seal art ist (it odel umber S-*) art o. art ame art umber Q ty W S-(R-9) S-(R-9) S-(R-9) ote) Specify W,, or for the asterisk (*) in the kit model number. odular Valve 9 -

201 U auge odular lock eatures to l/min a qhis modular block makes it possible to attach a pressure gauge to the and ports or the and ports. wonnection to the ports is extremely simple. odular Valve Specifications odel o ominal iameter (Size) aximum Working ressure a{kgf/cm } aximum low Rate l/min Weight kg --W-. / {} W--.. asket Surface imensions S / {}. S ---- xplanation of model o. () esign number ote: or size, relationship between mounting bolts and design number is indicated as :, :. uxiliary symbol ressure output port ominal iameter (Size), : mm thick ( size only) : port : port W:, ports andling z When installing the ---()-, ---()-, or -- W-()-, make sure the model number printing is oriented so it can be read correctly from the port side. x ote that a sub plate and installation bolts are not included. See pages -9 through -9 if these items are required. ounting method auge modular block : asket type -

202 nstallation imension rawings W Rc/... -Rc/.... -Rc/ W W--.. odular Valve Rc/.. -Rc/.. -Rc/ W Rc/ -Rc/ Seal art ist Size art ame art umber Q'ty S-(R-9) S-(R-9) ote) he materials and hardness of the conform with S. -

203 -W SYS igh-low System lock eatures to l/min a odular Valve Specifications andling z f a base block is required, use - Y-W*- for the size and - X-*- for the size, because their valve pitches match. - X-*- has a different valve pitch, and so cannot be used. Simple high-low -speed control can be attained by stacking this block on top of a high-low base block and manifold, which configures a speed control circuit. odel o. ominal iameter (Size) aximum Working ressure a{kgf/cm } aximum low Rate l/min Weight kg --W-. / {} --W--. --W-. / {} --W--. x When installing this block, make sure the nameplate is oriented so it can be read correctly from the port side. c oth of the cylinder ports on this block's manifold side (bottom) are open. ecause of this, close one of the base block cylinder ports (, or, on the next page), or modify the manifold so it has a single cylinder port only. v ote that installation bolts are not included. See pages -9 through -9 if these items are required. xplanation of model o. W () esign number ote: or size, relationship between mounting bolts and design number is indicated as :, :. uxiliary symbol igh-low system ominal diameter (size), ounting method : asket type : mm thick ( size) mm thick ( size) igh-low system block xample of ypical ircuit igh-speed ow-speed igh-low system block Use either one. -

204 nstallation imension rawings --W- --W φ. hole.. - φ. hole W- --W-- odular Valve - φ. hole - φ. hole Seal art ist Size art ame art umber Q'ty S-(R-9) R-9 ote) he materials and hardness of the conform with S. -

205 odular Valve R W / nd late, ree low late, / hange late eatures qhe end plate is a modular valve plate used to close off a circuit that is not required, and when using a relief modular valve in a standalone configuration. whe free flow plate is a modular valve plate is used in a one-way circuit that Specifications odel o. ominal iameter (Size) to l/min a does not require a solenoid valve. ehe / change plate makes it possible to use an size modular valve with an size sub-plate and base block. rhe / change plate makes it possible to use an size modular valve aximum Working ressure a{kgf/cm } aximum low Rate l/min with an size sub-plate and base block. Weight kg / {} / {} / {}. xplanation of model o. () esign number uxiliary symbol ote: uxiliary symbol (tightening height) and design number ( size) : type.mm : type.mm -: type mm (stop plate and relief low plate only) : / conversion plate (special item).. : ightening height mm ( size), mm ( size) ort connection status one: ll ports blocked (stop plate) :, :, (ree-flow plate) :, / Switching plate / onversion plate odel o. olt imensions Q'ty ominal diameter (size), -- ounting method : asket type --*- -- odular valve plate andling z nstallation bolts are not included. -- Use the table to the right to specify -- - bolts for stand-alone use

206 nstallation imension rawings () φ 9.x. counterbore φ. holes φ. holes φ. holes φ counterbore φd holes. 9 - φ. holes odular Valve φ. holes x φ counterbore φ d holes odel o. d --*-.. --*-.. Seal art ist Size art ame art umber Q'ty ---- S-(R-9) S-(R-9) R-9 R-9 ote) he materials and hardness of the conform with S erformance urves ressure oss haracteristics --- ydraulic perating luid inematic Viscosity mm /s -x x - φ 9x counterbore φ holes φ ressure oss a {kgf/cm }.. {.} {.}. {.}. {.}. {.}. {.}. {.} low rate l/min -9

207 odular Valve SU Solenoid Valve/odular Valve Subplate eatures his plate is for when only a single solenoid valve and modular is used. nstallation imension rawings he and sizes include one-side piping types. Use the following table for specification when a sub plate is required. (nominal diameter) or back piping 9.. S-Y-.... odel o. ipe utlet Size - φ -x -Rc - φ 9.x counterbore φ. hole aximum Working ressure a{kgf/cm } Recommended low Rate l/min Weight kg S-X- /. S-Y- / {}. or one-side piping S-Y-- - φ. -Rc/ -x φ 9.x counterbore φ. hole Sub late umber ounting bolt.. (nominal diameter) or back piping S-(X)- (S-(X)-) Sub late.. aximum Working odel o. ressure a{kgf/cm } S-- {} S-- {} x -(x) 9. - φ counterbore Recommended low Rate l/min Rc - φ.x counterbore ( φφ.x.) hole -x (x) / S-X- / / -Rc S-X- / ote) imensions in parentheses indicate S- (X) -. or one-side piping S-(X)-- (S-(X)--) - φx counterbore φ hole - φ port ote) imensions in parentheses indicate S- (X) --. odel o. ipe utlet Size aximum Working ressure a{kgf/cm } Recommended low Rate l/min Weight kg S-Y-- / {}.9 ounting bolt odel o. aximum Working ressure a{kgf/cm } Recommended low Rate l/min ipe utlet Size S--- / {} S-X-- / S--- / {} S-X-- / Weight kg.. -9

208 (nominal diameter) S-(X)- -x X Y 9 - φ (pin hole) - φ - φ.x counterbore φ holes.9. -x - φ. odel o. ipe utlet Size aximum Working ressure a{kgf/cm } Recommended low Rate l/min S-- / {} S-X- / Weight kg X Y -Rc -Rc / odular Valve (nominal diameter) S-(X)- (for back piping) φ x (pin hole) - φ x counterbore φ holes X Y - φ hole Rc /(back) φ hole Rc / (back).. -x - φ hole Rc (back) odel o. ipe utlet Size aximum Working ressure a{kgf/cm } Recommended low Rate l/min S-- / {} S-X- Weight kg. -9

209 S-(X)-- (for one-side piping).. Rc Y -Rc / odular Valve Y - φ x (pin hole) - φ. - φ - φ. counterbore φ holes. X. -x Rc / X.9.. odel o. ipe utlet Size aximum Working ressure a{kgf/cm } Recommended low Rate l/min S--- / {} S-X-- Weight kg 9. -9

210 Valve nstallation olt ist (nominal diameter) (nominal diameter) SS SS--***-**- --***-**- S S--***-**- S --***-**- S SS--***-**- S--***-**- odular Valve odel umber X odel umber X odel umber X S--***-**- SS--***-R-**- S--***-R-**-. SS--***-R-**- S--***-R-**-. SS--***-R-**- S--***-R-**- S--***-R-**- ype odel umber imension olt length ype odel umber imension olt length ype odel umber imension olt length exagon Socket ead olt exagon Socket ead olt Stat olt exagon Socket ead olt Stat olt ote). odel numbers indicate bolt kits for one solenoid valve.. Up to four modular valves can be ganged together.. Size odular valves at a height of + = mm are ganged to one level.. -pressure reducing valves at a height of 9 mm are ganged to two levels.. Refer to page - for installation bolts for S-. Stat olt 9-9

211 (nominal diameter) to to odular Valve ype exagon Socket ead olt odel o. SS--***-R-**- S--***-**- odel umber imension X olt Size olt length 9 Stat olt ote). he above model numbers indicate bolt kits for one solenoid valve.. Up to three modular valves can be ganged together.. here is a bolt for ganging four valves, but the maximum operating pressure is limited to a. or details, consult your agent. (See page -) -9

212 exagon socket head bolt ominal iameter olt Size Stat olts and uts imensions other than bolt length are in accordance with S. ightening orque ominal iameter olt Size ightening orque m{kgf cm} to { to } to { to } to { to } to { to } to { to } odular Valve odel o. olt Size --*** ***-. --***-. --***-. Stat bolts and nuts are included. he dimension is the effective screw depth. -9

213 odular Valve, ase lock eatures S his block, which allows piping from both sides, is designed for use with combinations of two or more solenoid valves and modular valves. xplanation of model o. X esign number Sequential number, port piping diameter X: ne size larger than nominal diameter Y: wo size larger than nominal diameter ominal diameter (size), ase block for modular valve nstallation imension rawings (nominal diameter) bass block -X-*- odel o. ipe utlet Size (, ) aximum Working ressure a{kgf/cm } aximum low Rate l/min -X-*- / {} -Y-W*- -Rc /. odel o. -x ipe utlet Size (, ) 9 aximum Working ressure a{kgf/cm } aximum low Rate l/min -Y-W*- / {} -Rc / -Rc / (ual side outlet) 9. -x ote) nother series of multi-pump blocks is available for the S and W Series. or details, see page -. - φx counterbore φ 9 holes -x 9 Rc / Rc / lug ightening orque lug onfiguration ightening orque m{kgf cm} -/ to { to } -/ to { to 9} odel o. Weight kg -X φx. counterbore φ. holes -Rc / lug ightening orque lug onfiguration ightening orque m{kgf cm} -/ to { to 9} -/ to { to } odel o. Weight kg -Y-W-. W. W 9. W. W. W. -9

214 (nominal diameter) bass block -X-*-() -Rc / X- (X- )... - (or hanging bolt) φ. holes (rom back surface) -Rc / -Rc / (ual side outlet) lug ightening orque odular Valve lug onfiguration ightening orque m{kgf cm} -/ to { to } -/ 9 to {9 to } odel o. ipe utlet Size (, ) aximum Working ressure a{kgf/cm } aximum low Rate l/min -X-*-() / {} odel o. imensions Weight kg -X--().... ote) imensions in parentheses are for model number -X-*-, which is the model number when using valve mounting bolts. -9

215 VV SRS igh-pressure Series to l/min a odular Valve eatures he igh-ressure Series responds to the needs of high density in a variety of fields by enabling higher density hydraulic systems. Series odular Valve ( * ) y integrating multiple hydraulic devices, this valve can be used when configuring hydraulic circuits even in the high-pressure range. See page - for information about the size. his series consists of pressure, flow rate, and flow direction control valves. aximum Working ressure : a{kgf/cm } aximum low Rate : to l/min Series on-leak Solenoid Valve (S) original structure is used to configure this wettype shutoff valve that isolates internal leaks. nstallation conforms to S standards, so it can be used in a wide range of applications in combination with modular valves. or more information, see page -. aximum Working ressure : a{kgf/cm } aximum low Rate : to l/min Series Related omponents igh-response proportional flow control valve aximum Working ressure :.a{kgf/cm } aximum low Rate : to l/min Specifications Series odular Valve Size imensions aximum Working ressure a{kgf/cm } aximum low Rate l/min ote) installation bolts only are used for the size. {} umber of ntegration evels to Size eight (mm) Width (mm) Remarks Same dimensions as the Series 9 his valve incorporates original flow control technology and heat treatment, plus precision machining to create high-performance valves with the following features: igh-pressure a igh reliability and compact design ress achinery ress brakes, punching presses Underground achinery Shield tunneling machinery, removal systems, etc. onstruction achinery rom mini vehicles to to -ton vehicles, shovels, etc. nvironmental Related ranulators, filter presses, scrap presses esting quipment mpulse, durability, performance testers, etc. Series ndustry Specific omponents ack Valve aximum Working ressure : a{kgf/cm } aximum low Rate : to l/min ogic artridge ono lock aximum Working ressure : a{kgf/cm } aximum low Rate : to l/min Series ndustry Specific omponents ydraulic accessories (stop valves, filters, accumulators, hoses, etc.); - servo level odular Valve roduct Series aximum working pressure a * - * - * - * - * - aximum flow Rate l /min -9

216 Size Specifications ype ame Valve odel umber aximum aximum perating low Rate ower ressure djustment Range (racking ressure) a{kgf/cm } S Symbol Solenoid Valves Solenoid S-**-**-**-() Valves SS-**-**-**-() Relief Valves (alance ype) R--*- -W*- R--*- -W*- l/min l/min :. to a{. to kgf/cm } : to a{. to kgf/cm } : ( ) port W: ( ) port R : Relief valve ressure ontrol Valves Relief Valves (irect ype) Reducing Valve R--W*- -*- -*- R--W*- -*- -*- --*- -*- --*-()- -*- l/min l/min l/min l/min :. to a{. to kgf/cm } : to a{. to kgf/cm } W: ( ) port : ( ) port : ( ) port :. to a{. to kgf/cm } : port : port : Reducing valve odular Valve low ontrol Valves low Regulator Valves Y--W-Y- --Y- --Y- -W-X- --X- --X Y--W-Y- --Y- --Y- -W-X- --X- --X a {kgf/ l/min cm } l/min Y: eter out X: eter in W: port : port : port : ilot check valve irection ontrol Valves heck Valves ilot heck Valves --*- -*- --*- -*- --W*-()- -*- -*- --W*-()- -*- -**- l/min l/min l/min l/min :.a{.kgf/cm } :.a{.kgf/cm } :. a{.kgf/cm } : port : port :.a{.kgf/cm } :.a{.kgf/cm } W: port : port : port : irect type (no small valve, only) : ecomp type (with small valve, only) -99

217 W Y S R R R VV SS Series(Wiring System: entral erminal ox) Wet ype Solenoid Valve to l/min a eatures qvery long life he movable iron core of the wet type solenoid is immersed in oil, which keeps it lubricated and cushions it from impact and vibration, ensuring very long life. wow switching noise he wet-type solenoid valve provides very low core switching noise, for quiet operation. eigh pressure, large capacity, with minimal pressure loss omprehensive fluid reaction force compensation and low pressure compensation construction provide large capacity and low pressure loss. : a{kgf/cm }l/min : a{kgf/cm }l/min rasy connections special wiring box provides a port and indicator light as standard for simple wiring and maintenance. tasy coil replacement plug-in type coil enables one-touch coil replacement. ywide-ranging backward compatibility makes it simple to replace previous valve models with this one. ombining this valve with a modular valve contributes to the compact configuration of the overall device. uompliant with global and international safety regulations ( size, U, S, and size U). an be used safely around the world. ontact us for models and specifications of compliant products. Specifications S Symbol b b b b b b b odel o. a a a a a a a b a b a b a b a b a b a b a b a b a b a b a peration Symbol Standard ype aximum low Rate l/min aximum Working ressure a{kgf/cm } {} SS- Shockless ype aximum aximum Working low Rate ressure l/min a{kgf/cm } -X- -X- -- -X- -X- -X- -X- -Z- -Z- -Z S- -S Y- -- Solenoid Solenoid Solenoid ype Standard ype aximum aximum Working low Rate ressure l/min a{kgf/cm } {} SS- Solenoid ype (With built-in rectifier) aximum aximum Working low Rate ressure l/min a{kgf/cm } {} {} {} {} ote) he maximum flow rate of each valve depends on the pressure. or details, see pages -9 and -. Shockless ype aximum aximum Working low Rate ressure l/min a{kgf/cm } {} Solenoid Valve -

218 Solenoid Valve aximum Working ressure aximum llowable ackpressure Switching frequency (cycles/minute) Solenoid SS- uilt-in Rectifier Solenoid Solenoid SS- uilt-in Rectifier Solenoid * * * * * *,, ports ()a{()kgf/cm }(ote) port a{kgf/cm } a{kgf/cm } Standard ype Shockless ype Standard ndicator light R R ption Weight (kg) perating nvironment ounting bolt Shockless Surgeless With manual push-button Quick Return Q Q ouble Solenoid.... Single Solenoid.... ust Resistance/Water Resistance Rank perating luid S 9 (ust-tight, Splash-proof) mbient emperature to emperature Range to inematic Viscosity Range to mm /s iltration Size ength ightening orque (our) to m{ to kgf cm} μm or less (our) ( (our)) to m{ to kgf cm} ( to m{ to kgf cm}) ote). aximum operating pressure depends on the valve type. or details, see page -.. or mounting bolts, use bolts with.9 strength classification or equivalent.. ounting bolts are not included with the size.. or size installation bolts and spacers are provided. ttach the spacers to the valve to maintain the appropriate fitting length even if you do not use the installation bolts provided to add on modular valves. andling zn order to realize the full benefits of the wet type solenoid valve, configure piping so oil is constantly supplied to the (R) port. ever use a stopper plug in the (R) port. xnsure that surge pressure in excess of the maximum allowable back pressure does not reach the port. cote that the maximum flow rate is limited when used as a four-way valve, or by blocking ports for use as a two-way valve or one-way valve. vlways keep the operating fluid clean. llowable contamination is class S or less. bwhen using petroleum type operating fluid, use S lass or lass, or equivalent. nor details about using fire-resistant hydraulic fluid, see page - for more information. muse this valve only within the allowable voltage range.,o not allow the solenoid to become charged until you install the coil into the valve..n the case of operation symbols X, X, and X, run drain piping from the valve port. aintaining a switching position under high pressure for a long period can cause abnormal operation due to hydraulic lockup. ontact your agent when you need to maintain a switching position for a long period. When using a detent type (X, X, Z), use constant energization in order to securely maintain the switching position. RSS-***-R*-()-**- RS-***-R*-()-**- RSS-***-Q*-()-**- RS-***-Q*-()-**- RSS-***-*-()-**- RS-***-*--**- he coil surface temperature increases if this valve is kept continuously energized. nstall the valve so there is no chance of it being touched directly by hand. odel o. S-X- / aximum Working ipe ressure iameter a{kgf/cm } ote that manual pin operating pressure changes in accordance with tank line back pressure. he series described in the table below are available for use as RSS and RS Series solenoid control relief valves. SS--R-R-**- SS--X-R-**- SS--X-R-**- SS--X-R-**- Use the following table for specification when a sub plate is required. Recommended low Rate (l/min) S-- / {} S-X- / S-Y- / S-- / S-X- / Weight (kg) pplicable Valve ype. SS--**-R-**-. SS--**-R-**-. SS--**-R-**- -

219 Solenoid ssembly Specifications Solenoid ype with uilt-in Rectifier ower Supply ype Voltage (V) requency (z) Solenoid oil ype rive urrent () or SS- olding urrent () olding ower (W) llowable Voltage Range (V) Solenoid oil ype rive urrent () or SS- olding urrent () olding ower (W) llowable Voltage Range (V).. to..9. to to 9 to to... 9 to to to to... to to to to... to to to..... / to to... / -- to -... to / --. to -.. to... / -- to -... to --.. to to to to. xplanation of model o. SS X * R esign number : size : size for mounting bolt : size for mounting bolt Solenoid Valve ower supply : (/z) =V =V =V =V : =V =V : (uilt-in rectifier; /z) =V =V =V =V With indicator light uxiliary symbol (an be combined in alphabetic sequence.) : Shockless type (vailable with power supply *, ) : Surgeless type (vailable with power supply *, *) : With manual push-button Q: Quick return type (vailable with power supply *) ransition low ath(specify for X, X, X, X, X, X, Z, Z, Z, Y only) X Y Z losed Semi-open pen enter position 9 S S ote : = ressure port; and = onnection port to cylinder, etc.; (R) = onnection port to tank peration ethod Spring ffset Spring enter etent b a b b a a ominal diameter size size ounting method : ascade mounting Wet type solenoid operated directional control valve -

220 ptions (uxiliary Symbol xplanations) Shockless ype (uxiliary Symbol: ) Switching Response haracteristics he pressure waveforms for each valve in the hydraulic circuit shown below are shown at the bottom of this block. pening and closing of a dry type valve generates shock (noise) and pipe vibration due to the sudden drop or rise in pressure. With a shockless solenoid valve, pressure fluctuation when the valve is opened or closed is smoothened, which eliminates shock (noise) and pipe vibration. power supply Surgeless ype (uxiliary Symbol: ) he surge pressure waveforms when the solenoid valve power supply is opened and closed by a relay are shown at the bottom of this block. built-in surge absorber element eliminates sparking and surge pressure. Relay contact Surge suppressor SS--***-R-- φ φ W=kg Voltage R=Ω urrent Solenoid Valve SS---R-- Storage oscilloscope ry type Shockless type ormal form anual utton ype (uxiliary Symbol: ) ush-button an be locked by pressing the button and rotating 9. Spark time Quick Return (uxiliary Symbol: Q) Surgeless time andling zhis type is used in the case of power supply type * (with built-in rectifier) to shorten the spring return time. his also applies to *. xquick return device is built-in to central terminal box. Stroke S φ ower supply SW Surge absorber ull Wave Rectifier ircuit Recovery ime imiter ircuit Solenoid odel o. S Solenoid. SS-. Solenoid. Solenoid. SS- 9. Solenoid. -

221 nstallation imension rawings Solenoid SS-- **-R-*- SS--**-R-*- ote) SS--**-R-**- he solenoid is on the opposite side of that shown for Sa in the illustrations shown here. to (reviously ) / ndicator light S b φ. oles for temporary nameplate or customer s nameplate mounting holes for wiring. Recommended nameplate dimensions. Self-tapping screws for mounting;. x. ndicator light S a φ... S b. SS--**-R-*- SS-- **-R-*- anual push-button S b.. φ. S a Solenoid Valve 9. Solenoid and Rectifier SS--**-R-/*- SS--**-R-/*- SS-- **-R-/*- SS-- **-R-/*- Space required for coil removal S b S a 9.. Space required for coil removal. φ.. or sub plate SS- odel o. Weight S-X- /.kg S-Y- /.kg asket Surface imensions S ---- ( S ---- ) φ. -x -φ 9.xcounterbore φ.hole -Rc -

222 nstallation imension rawings Solenoid SS--**-R-*- SS--**-R-*- ote.) SS--**-R-**- he solenoid is on the opposite side of that shown for Sa in the illustrations shown here. ote.) ttach the spacers to the valve, as shown in the diagram at right, to maintain the appropriate fitting length even if you do not use the installation bolts provided with the SS-. ndicator light S.b Wiring hole / ote ) Spacer oles for temporary nameplate or customer s nameplate mounting holes for wiring. Recommended nameplate dimensions Self-tapping screws for mounting;. x. φ. ndicator light S.a SS--**-*R-**- SS--**-*R-**- φ φ. φ. Solenoid Valve. SS--**-R-*- SS-- **-R-*-. anual push-button 9. S. b 9.. ote ) Spacer φ Solenoid and Rectifier SS-- **-R-*/*- SS--**-R-*/*- SS-- **-R-*/*- SS-- **-R-*/*- S. b S. a.. Space required for coil removal ote ) Spacer S. b S. a.. - φ.x counterbore ( φ.x.) φ holes -x(x).. 9 Space required for coil removal or sub plate SS- ounting bolt odel o. Weight - φ holes 9 S-- / S-X- / S-- / S-X- /.kg gasket surface dimensions S ---- S ---- ( ) -Rc -

223 Wiring iagram round terminal ommon terminals S b S b round terminal S a ote). n the case of a double solenoid valve, a common terminal is provided to simplify wiring. When the common terminal is not used, remove the terminal screws.. Use the ground terminal when grounding is required.. n the case of a solderless terminal, screws.. ighten terminal screws to a torque of. to. m {. to.kgf cm}. S a lectrical ircuit iagram ype odel o. lectrical ircuit Solenoid SS- -***-R-*- /z Solenoid Valve /z Solenoid Surgeless ype SS- -***-R-*- /z uilt-in Rectifier SS- -***-R-*- ± Solenoid SS- -***-R-*- ± Solenoid Surgeless ype SS- -***-R-*- uilt-in Rectifier Quick Return ype SS- -***-QR-*- See page - for more information. -

224 erformance urves ydraulic perating luid inematic Viscosity mm /s ressure oss haracteristics Solenoid Valve ressure oss a ressure oss a Switching Response ime d f e c odel o. SS--**-R-*- SS--**-()R-*- SS--**-R-*- SS--**-()R-*- SS--**-R-*- low rate l/min g e d f b a {kgf/cm } low rate l/min {kgf/cm } c b a ump ype SS- ump ype SS- Solenoid. to.. to.. to.. to.. to. low ath X, X, X d d X, X b b b b X b b b b Z, Z, Z a a a a,, a a a a a,,, S b b b b, S b b a b a b b b b b a a Y f f e e c a f b e c 9 a a b b low ath X, X, X e e c c c c X, X, X c c d d Z, Z a a d d Z b b a a c c a c a c c c,, a a a a a, S, S c c c c Response ime (sec) c c a a Y g g g g f a g a g f 9 a a c c Spring Return. to.. to.. to.. to.. to. easurement onditions a{kgf/cm } l/min SS--**-R-*- SS--**-()R-*-. to.. to.9. to.. to. a{kgf/cm } SS--**-R-*-. to.. to. l/min SS--**-()R-*-. to.. to. SS--**-R-*-. to.. to. ote). he switching response time changes slightly with operating conditions (pressure, flow rate, viscosity, etc.). n the case of power supply type * (with built-in rectifier), the spring return time using Quick Return (option symbol: Q) is the same as *. -

225 ressure low Volume llowable Value peration Symbol Size peration xample b Standard orm, with, solenoid SS--**-R-**- X, X X X, X X Z, Z Z, ote) () S,, S, 9 Y, ote) () a b a b a peration Symbol Size peration xample b Shockless ype, with solenoid SS--**-R-**- X, X X X, X X Z, Z Z, S,,, S, 9, Y, a b a b a ote). etter in parentheses is for solenoid.. etter in parentheses is for solenoid with built-in rectifier (*), but without Quick Return, and for solenoid (*) with surge voltage absorbing diode on the electrical circuit. low rate l/min low rate l/min {} {} {} ressure a {kgf/cm } Solenoid Valve {} {} {} ressure a {kgf/cm } {} -9

226 Solenoid Valve ressure low Volume llowable Value odel o. Standard orm, with Solenoid Standard orm, with Solenoid SS--**-R-*- SS--**-R-**- peration xample b a b a b a b a b a b peration Symbol X X X X X Z Z X, Z S,, S,,, 9 Y, ote) () () () low rate l/min {} {} {} {} ressure a{kgf/cm } low rate l/min {} {} {} {} ressure a{kgf/cm } a Shockless ype, with solenoid odel o. SS--**-R-**- peration xample b a b a b peration Symbol X X X X X Z Z X, Z, S,,, S,, 9 Y, ote) () () () low rate l/min a - {} {} {} ressure a{kgf/cm } ote). etter in parentheses is for solenoid with built-in rectifier (*), but without Quick Return, and for solenoid (*) with surge voltage absorbing diode on the electrical circuit.. here is no shockless type for the solenoid (*), so use a solenoid with built-in rectifier (*) when shockless operation is required with an power supply.. he maximum flow rate is the allowable value of each port.

227 ross-sectional rawings SS--**-R-*- SS--**-R-* SS--**-R-/*- SS--**-R-/*- Solenoid Valve ist of Sealing arts art o. art ame art umber Single Solenoid Q'ty ouble Solenoid S-(R-9) R-- 9 R-9 S-(R--) ote) he materials and hardness of the conforms with S. art o. 9 art ame ody lug Spool Retainer Retainer Retainer Spacer Spring Spring ut art o. 9 art ame Rod Solenoid guide Solenoid coil acking erminal box kit ameplate Seal it umber Single Solenoid S- ouble Solenoid S- -

228 ross-sectional rawings SS--**-R-*- SS--**-R-* Solenoid Valve SS--**-R-/*- 9 SS--**-R-/* ist of Sealing arts art o. art ame S. ype/art umber S. Single Solenoid Q'ty ouble Solenoid S-(R-9) R-9 9 R-- S-(R--) S-9(R--) ote) he materials and hardness of the conforms with S. Seal it umber art o. 9 art ame ody lug Spool Retainer Retainer Spacer Spring ut Rod Solenoid guide Solenoid coil acking oil case art o. 9 art ame oil yoke erminal box kit ameplate S. S. Single Solenoid ouble Solenoid Single Solenoid ouble Solenoid S- S- S- S- -

229 W Y S R R R VV S Series(Wiring System: onnector ype) Wet ype Solenoid Valve eatures to l/min a qvery long life he movable iron core of the wet type solenoid is immersed in oil, which keeps it lubricated and cushions it from impact and vibration, ensuring very long life. wow switching noise he wet-type solenoid valve provides very low core switching noise, for quiet operation. Specifications S Symbol b b b b b b b odel o. a a a a a a a b a b a b a b a b a b a b a b a b a b a b a peration Symbol Standard ype aximum low Rate l/min eshockless switching speed adjustment mechanism enables direct, shockless operation (ption ). ro surge voltage Sparking and surge voltage during solenoid switching is canceled for stable switching (ption ). tasy coil replacement connector type coil enables one-touch coil replacement. aximum Working ressure a{kgf/cm } {} S- Shockless ype aximum aximum Working low Rate ressure l/min {kgf/cm } -X- -X- -- -X- -X- -X- -X- -Z- -Z- -Z S- -S Y- -- Solenoid Solenoid Solenoid ype ywide-ranging backward compatibility makes it simple to replace previous valve models with this one. ombining this valve with a modular valve contributes to the compact configuration of the overall device. ulobal support ( size) eets overseas safety standards (, U, and S). t can be safely used anywhere in the world. ontact your agent for certified products. Standard ype aximum aximum Working low Rate ressure l/min a{kgf/cm } {} S- Solenoid ype (With built-in rectifier) aximum aximum Working low Rate ressure l/min a{kgf/cm } Shockless ype aximum low Rate l/min {} {} {} {} aximum Working ressure a{kgf/cm } {} Solenoid Valve ote) he maximum flow rate of each valve depends on the pressure. or details, see pages - and -. -

230 Solenoid Valve aximum Working ressure aximum llowable ackpressure Switching frequency (cycles/minute) Weight ption (kg) perating nvironment ounting bolt Solenoid S- uilt-in Rectifier Solenoid Solenoid S- uilt-in Rectifier Solenoid * * * * * *,, ports ()a{()kgf/cm }(ote) port a{kgf/cm } a{kgf/cm } Standard ype Shockless ype ndicator light R R Shockless Surgeless Screw onnector With manual push-button ouble Solenoid.... Single Solenoid.... ust Resistance/Water Resistance S 9 (ust-tight, Waterjet-proof) (ote ) perating luid mbient emperature - to emperature Range - to inematic Viscosity Range to mm /s iltration Size ength ightening orque (our) to m{ to kgf cm} ote). aximum operating pressure depends on the valve type. or details, see page -.. he power supply type for * is (dust-tight, splash-proof).. or mounting bolts, use bolts of.9 strength classification or equivalent.. ounting bolts are not included with the size. olts are included with the size. andling zn order to realize the full benefits of the wet type solenoid valve, configure piping so oil is constantly supplied to the (R) port. ever use a stopper plug in the (R) port. xnsure that surge pressure in excess of the maximum allowable back pressure does not reach the port. cote that the maximum flow rate is limited when used as a four-way valve, or by blocking ports for use as a two-way valve or one-way valve. vlways keep the operating fluid clean. llowable contamination is class S or less. bwhen using petroleum type operating fluid, use S lass or lass, or equivalent. nor details about using fire-resistant hydraulic fluid, see page - for more information. muse this valve only within the allowable voltage range.,o not allow the solenoid to become charged until you install the coil into the valve..n the case of operation symbols X, X, and X, run drain piping from the valve port. aintaining a switching position under high pressure for a long period can cause abnormal operation due to μm or less hydraulic lockup. ontact your agent when you need to maintain a switching position for a long period. When using a detent type (X, X, Z), use constant energization in order to securely maintain the switching position. RS-***-R*-()-**- RS-***-Q*-()-**- RS-***-*-()-**- he coil surface temperature increases if this valve is kept continuously energized. nstall the valve so there is no chance of it being touched directly by hand. odel o. S-X- / aximum Working ipe ressure iameter a{kgf/cm } (our) ( (our)) to m{ to kgf cm} ( to m{ to kgf cm}) ote that manual pin operating pressure changes in accordance with tank line back pressure. he series described in the table below are available for use as the RS Series solenoid control relief valve. S--R-**- S--X-**- S--X-**- Use the following table for specification when a sub plate is required. Recommended low Rate (l/min) S-Y- / S-- / {} S-X- / S-- / S-X- / Weight (kg) pplicable Valve ype. S--***-**-. S--***-**-. S--***-**- -

231 Solenoid ssembly Specifications Solenoid ype with uilt-in Rectifier ower Supply ype Voltage (V) requency (z) Solenoid oil ype rive urrent () S X ** or S- olding urrent () olding ower (W) llowable Voltage Range (V) Solenoid oil ype rive urrent () or S- olding urrent () olding ower (W) llowable Voltage Range (V).. to..9. to to 9 to to... 9 to to to to... to to to to... to to to..... / to to... / -- to -... to / --. to -.. to... / -- to -... to --.. to to to to. xplanation of model o. esign number : size : size for mounting bolt : size for mounting bolt Solenoid Valve ower supply : (/z) =V =V =V =V : =V =V : (uilt-in rectifier; /z) =V =V =V =V uxiliary symbol (an be combined in alphabetic sequence.) : Shockless type (vailable with power supply *, ) R: Surgeless type with indicator (vailable with power supply *, *) : screw conversion adapter (or power supply *, *) : o connector : With manual push-button R: With indicator light ransition low ath (Specify for X, X, X, X, Z, X, Z, X, Z, Y only) X Y Z losed Semi-open pen enter position 9 S S ote : = ressure port; and = onnection port to cylinder, etc.; (R) = onnection port to tank peration ethod Spring ffset Spring enter etent b a b b a a ominal diameter size size ounting method : ascade mounting Wet type solenoid operated directional control valve with connector -

232 ptions (uxiliary Symbol xplanations) Screw dapter (uxiliary Symbol: ) φ (reviously )/ With manual push-button (uxiliary Symbol: ) ush-button an be locked by pressing the button and rotating 9. φ Stroke S Solenoid Valve odel o. S- 9 S-.. ther ptions ote) or information about the shockless and surgeless options, see page -. odel o. S Solenoid. S-. Solenoid. Solenoid. S- 9. Solenoid. -

233 nstallation imension rawings Solenoid S-- **-*-*- S--**-*-*- φ. ote) S--**-R-**- he solenoid is on the opposite side of that shown for Sa in the illustrations shown here. 9 S--**-R-*- S-- **-R-*- anual push-button S b S b. φ. 9 S a Solenoid Valve Space required for coil removal Solenoid and Rectifier S-- **-*/*- S--**-*/*- S-- **-*/*- S-- **-*/*- ote). S--**-*-*/*- he solenoid is on the opposite side of that shown for Sa in the illustrations shown here.. S--**-*- imension is 9. imension is. anual push-button. ) ) 9. S b S a φ... Space required for coil removal or sub plate S- odel o. Weight S-X- /.kg S-Y- /.kg asket Surface imensions S ---- S ---- ( ) φ. -x -φ 9.xcounterbore φ.hole -Rc -

234 nstallation imension rawings Solenoid S-- **-*-*- S--**-*-*- Solenoid Valve ote.) SS--**-R-**- he solenoid is on the opposite side of that shown for Sa in the illustrations shown here. ote.) ttach the spacers to the valve, as shown in the diagram at right, to maintain the appropriate fitting length even if you do not use the installation bolts provided with the SS-. S--**-*-**- S--**-*-*- S-- **-*-*- Solenoid and Rectifier S-- **-*-*/*- S--**-*-*/*- S-- **-*-*/*- S-- **-*-*/*- S--**-*-**- φ φ. φ.. ote). S--**-*-*/- he solenoid is on the opposite side of that shown for Sa in the illustrations shown here.. S--**-*- imension is.. imension is φ.x counterbore ( φ.x.) φ holes -x(x). ). ).. anual push-button ote ) Spacer ote ) Spacer S. b S. b. 9.. Space required for coil removal ote ) Spacer S. b. anual push-button. 9. Space required for coil removal. φ S. a. S. a or sub plate S- ounting bolt odel o. Weight - φ holes 9 S-- / S-X- / S-- / S-X- / gasket surface dimensions S ---- S ---- ( ).kg -Rc -

235 onnectors odel o. Wiring lectrical ircuit iagram S- * -***- * - () (-) onnect the power supply to terminals o. and o.. he terminal is ground. Use this terminal as required. /z (n the case of *: ±) S- -***-R-*- () (-R*-) /z S- -***-R-*- () (-R*-) S- -***-R-*- () (-R*-) onnect the power supply to terminals o. and o.. he terminal is ground. Use this terminal as required. /z ± Solenoid Valve S- -***-R-*- () (-R*-) ± S- -***-*- () (-) S- -***-R-*- () (-R*-) ower supply terminal onnect the power supply to the terminals on the board. When ground connection is required, remove the board and use the terminal. n this case, do not connect the power supply to the o. and o. terminals. /z /z (reviously )/ Symbols in parentheses indicate connector configuration. ote). sterisks in the connector configuration and power supply symbols are fillers for the voltage symbol ( or ).. he connector cord diameter is φ to φ. nything outside this range causes water tightness to be lost.. he orientation of the connectors can be changed in 9 increments by changing the terminal block.. he cover cannot be removed unless the installation screws are removed.. When is specified for the auxiliary symbol, a screw conversion adapter is attached to the connector, and the wiring port is a (previously ) / screw (standard: ). and -R* also have a (previously ) wiring port.. Use for round type and Y type solderless terminals.. ighten the screws that secure connectors and terminals to a torque of. to. m (. to.kgf cm). -9

236 erformance urves ydraulic perating luid inematic Viscosity mm /s ressure oss haracteristics ressure oss a f e c d b a {kgf/cm } ump ype low ath X, X, X d d X, X b b b b X b b b b Z, Z, Z a a a a,, a a a a a,,, S b b b b S-, S b b a b a b b b b b a a Y f f e e c a f b e c 9 a a b b Solenoid Valve ressure oss a low rate l/min g e d f {kgf/cm } low rate l/min c b a ump ype low ath X, X, X e e c c c c X, X, X c c d d Z, Z a a d d Z b b a a c c a c S- a c c c,, a a a a a, S, S c c c c c c a a Y g g g g f a g a g f 9 a a c c Switching Response ime Response ime (sec) odel o. Solenoid Spring Return S--**-(R)-*-. to.. to. S--**-(R)-*-. to.. to. S--**-(R)-*-. to.. to. S--**-(R)-*-. to.. to. S--**-(R)-*-. to.. to. S--**-(R)-*-. to.. to. S--**-(R)-*-. to.9. to. S--**-(R)-*-. to.. to. S--**-(R)-*-. to.. to. S--**-(R)-*-. to.. to. ote). he switching response time changes slightly with operating conditions (pressure, flow rate, viscosity, etc.) easurement onditions a {kgf/cm } l/min a {kgf/cm } l/min -

237 ressure low Volume llowable Value Size Standard orm, with, solenoid S--**-R-**- peration xample b a b a b peration Symbol X, X X X, X X Z, Z Z, ote) () S,, S, 9 Y, ote) () ote). etter in parentheses is for solenoid.. etter in parentheses is for solenoid with built-in rectifier, but without Quick Return, and for solenoid with surge voltage absorbing diode on the electrical circuit. low rate l /min a peration Symbol Size peration xample b Shockless ype, with solenoid S--**-R-**- a b a b X, X X X, X X Z, Z Z, S,,, S, 9 low rate /min l, Y, {} {} ressure a } {kgf/cm {} a Solenoid Valve {} {} {} {} ressure a {kgf/cm } -

238 Solenoid Valve ressure low Volume llowable Value odel o. Standard orm, with, solenoid Standard orm, with solenoid S--**-*- S--**-**- peration xample b a b a b a b a b a b peration Symbol X X X X X Z Z X, Z S,, S,,, 9 Y, ote) () () () low rate l/min {} {} {} {} ressure a{kgf/cm } Shockless ype, with solenoid odel o. S--**--**- peration xample b a b a b peration Symbol X X X X X Z Z X, Z, S,,, S,, 9 Y, ote) () () () low rate l/min a low rate l/min {} {} {} {} ressure a{kgf/cm } a - {} {} {} ressure a{kgf/cm } ote). etter in parentheses is for solenoid with built-in rectifier (*), but without Quick Return, and for solenoid (*) with surge voltage absorbing diode on the electrical circuit.. here is no shockless type for the solenoid (*), so use a solenoid with built-in rectifier (*) when shockless operation is required with an power supply.. he maximum flow rate is the allowable value of each port.

239 ross-sectional rawings S--**-*- S--**-* S--**-/*- S--**-/*- Solenoid Valve ist of Sealing arts art o. art ame art umber Single Solenoid Q'ty ouble Solenoid S-(R-9) R-- 9 R-9 S-(R--) ote) he materials and hardness of the conforms with S. art o. 9 art ame ody lug Spool Retainer Retainer Spring pin Spacer Spring Spring ut art o. 9 art ame Rod Solenoid guide Solenoid coil acking onnector ameplate Seal it umber Single Solenoid S- ouble Solenoid S- -

240 ross-sectional rawings S--**-*-() S--**-*-() Solenoid Valve S--**-/*-() 9 S--**-/*-() ist of Sealing arts art o. art ame S. ype/art umber S. Single Solenoid Q'ty ouble Solenoid S-(R-9) 9 R-9 R-- S-(R--) S-9(R--) ote) he materials and hardness of the conform with S. Seal it umber art o. 9 art ame ody lug Spool Retainer Retainer Spacer Spring ut Rod Solenoid guide art o. 9 art ame Solenoid coil oil case oil yoke onnector onnector packing ameplate Screw S. S. Single Solenoid ouble Solenoid Single Solenoid ouble Solenoid S- S- S- S- -

241 S Y S R R VV S Series (Wiring System: entral erminal ox) ower ower Solenoid Valve eatures to l/min to a qow current, low power he S series magnetic switching valve s solenoid has significantly lower power consumption. w irectly drivable by a programmable controller ow-current operation means not only allows direct drive by a programmable controller () output circuit, it also enables the use of a compact and simple control circuit. eittle coil temperature rise ow power operation means there is little heat generated from the coil, which minimizes the effects of heat on mechanisms. ven with the solenoid, there is little chance of coil burnout. r With - pin connector (option) akes it easier to interface with open networks like evice et. his connector streamlines wiring work. he diode for preventing current back surge is peration Symbol X X X X Specifications b b S Symbol b b b b andling zn order to realize the full benefits of the solenoid valve, configure piping so oil is constantly supplied to the (R) port. xnsure that surge pressure in excess of the maximum allowable back pressure can be accidentally at the port. Solenoid ssembly Specifications a a a a a S--**-()R-**- aximum low Rate l/min built in to the terminal box to protect the slave unit connection. (With - pin connector) aximum Working ressure a{kgf/cm } {} S--**-R-**-() aximum low Rate l/min aximum Working ressure a{kgf/cm } {} ote) he maximum flow rate of each valve depends on the pressure. or details, see page -. cote that the maximum flow rate is limited when used as a four-way valve, or by blocking ports for use as a two-way valve or oneway valve. vlways keep the operating fluid clean. llowable contamination is class S or less. t lobal compliance ( size) eets overseas safety standards ÜV ( marking). an be used safely around the world. bwhen using petroleum type operating fluid, use S lass or lass, or equivalent. nuse the SS series solenoid valve if using flame resistant operating fluid. me sure to note the allowable pressure range of the coil being used.,aintaining a switching position under high pressure for a long period can cause abnormal operation due to hydraulic lockup. ontact your agent when you need to maintain a switching position for a long period..when using a detent type (X), provide constant energization when secure maintenance of the switching position is required. ote that manual pin operating pressure changes in accordance with tank line back pressure. f you do not select the option with the - pin connector, current back surge may occur because there is no solenoid in the central terminal box. herefore, install solenoid valves to protect against current back surge on both ends of the coil in the output circuit of the programmable controller () if directly operating the solenoid valves. (Recommended diode: itachi V or equivalent) Solenoid Valve Solenoid ype uilt-in rectifier type ower Supply ype Voltage (V) requency (z) Solenoid oil ype olding urrent () or S- olding ower (W) llowable Voltage Range (V) -.. to Solenoid oil ype S-- R- olding urrent () or S- olding ower (W) llowable Voltage Range (V).. to -... to. S to. -

242 Solenoid Valve Solenoid ype S- S- Solenoid nternal solenoid for rectifier Solenoid nternal solenoid for rectifier aximum Working ressure,, orts a{kgf/cm } a{kgf/cm } aximum llowable ackpressure port a{kgf/cm } a {kgf/cm } (n the case of a {kgf/cm } operation symbol X) hangeover requency (per minute) Standard Weight (kg) perating nvironment undled ccessories ndicator light Surgeless R ouble Solenoid.. Single Solenoid.. ust Resistance/Water Resistance Rank S 9 (ust-tight, Splash proof) S 9 (ust-tight, Waterjet-proof) mbient emperature - to - to perating luid emperature Range - to to inematic Viscosity Range to mm /s iltration ounting bolt ightening orque Refer to page -9 for bolt lengths for usage of x -module valves. to m { to kgf cm} ote) or mounting bolts, use bolts of.9 strength classification or equivalent. xplanation of model o. S X R R μm or less R Refer to page - for bolt lengths for usage of x ( x ) -module valves. to m{ to kgf cm} to m{ to kgf cm} esign number : or size : size for mounting bolt ( if mounting bolt is ) ower supply : =V : or (joint / z inside rectifier) =V uxiliary symbol R: Surgeless type with indicator (applicable for power supply only) R: With indicator light (applicable for power supply only) V: With - pin connector, load side - common (applicable for power supply only) W: With - pin connector, load side + common (applicable for power supply only) ransition low ath (Specify for X, X only) X losed enter valve position flow path peration ethod Spring ffset Spring enter etent b a b a b ominal pipe diameter size size ounting method : asket type entral terminal box with low-power solenoid valve a -

243 nstallation imension rawings S-- ***-()R-**- S--***-()R-**- ote) or S--X-()R-**-, the solenoid is on the opposite side as that shown in the diagram (S.a). Wiring port -/ ndicator light S b φ. ** ounting holes for temporary nameplate or customer's nameplate for wiring Recommended nameplate dimensions Self-tapping screws for mounting;. x ndicator light S a φ S--**-()R-**- S--X-()R-**-... Space required for coil removal anual push-button S b S b. φ... S a Solenoid Valve or sub plate S- odel o. Weight S-X- /.kg S-Y- /.kg asket Surface imensions S ---- S ---- ( ) φ. X φ 9.X counterbore φ. hole. Rc Wiring diagram for central terminal box kit S--**-*R*-**- S--X-*R*-**- S-- ** X -*R*-**- round terminal S b S. a round terminal ommon terminals S b S. a round terminal S b round terminal S a -

244 lectrical circuit diagram for central terminal box kit (V) (ote ) (With built-in rectifier V) V (V) V V V V S ± Varistor voltage values in (parenthesis) are for the S-. S /z With - pin connector S--**-RV-- S--**-RW-- ote ) nstall specification solenoid valves to protect against current back surge on both ends of the coil in the output circuit of the programmable controller () if directly operating the solenoid valves. - pin connector Solenoid Valve in number positioning diagram. S b in number position lectrical ircuit iagram peration Symbol * peration Symbol *, * ype V : ot used : S. a(+) (or ype ) : S. b(+) (ype, ) : S. a(+) (ype ) : ( ) S. a o. S. a( + ) o. ( ) S. b o. o. ot used ( ) o. S. b( + ) S. o., are not used o. S. a(+) : ype S. b(+) : ype ype W : (+) : S. a( ) (ype ) : S. b( ) (ype, ) : S. a( ) (ype ) : ot used S. a o. S. a( ) o. ( + ) S. b o. ot used o. S. b( ) S. o. S. a( ) : ype S. b( ) : ype o. (+) o., are not used S--*-()R-**-() S--X-()R-**-() -S - urrent indicator lamp. anual push-button - () φ -.(.) φ S--***-()R-**-() -

245 (or - pin connectors ) (or - pin connectors ) Space required for solenoid removal Space required for solenoid removal or sub plate S- ounting bolt odel o. Weight S-- / S-X- / S-- / S-X- / gasket surface dimensions S ---- S ---- ( ).kg φ. X counterbore ( φ. X.) φ hole X ( X ) Solenoid Valve φ hole 9 - Rc -9

246 Solenoid Valve erformance urves ifferential ydraulic luid inematic Viscosity mm /s ressure oss haracteristics ressure oss a ressure oss a ressure - low Volume llowable Value low rate l/min low rate l/min ump ype low ath S- X d f X f f e e X f f e e X c c e e b b b b d e e d d f f a a ump ype low ath S- X d d X d d d d X d d c c c c a a b d d d d d d b b ump ype S- S- peration xample b a b a b a b a b a b peration Symbol X X X X low rate l/min f e d c b a d c b a ressure a low rate l/min ressure a ote). he maximum flow rate is the value when a rated 9%V is applied following solenoid temperature rise and saturation.. he maximum flow rate is the allowable value of each port. a -

247 nstallation bolts Refer to the following table for length of installation bolts for S- size. (Refer page -9 for length of installation bolts for S- size.) ype imensions olt length exagon socket head bolt (Solenoid only) 9 ype imensions olt length Stat bolt ross-sectional rawings S--X-()R-**- ist of Sealing arts art o. art ame ote) he materials and hardness of the conforms with S. S--X-R-**-() ist of Sealing arts art umber S- Q'ty Single Solenoid ouble Solenoid S-(R-9) R-- 9 R-9 S-(R--) art o. art ame 9 art umber S- Q'ty Single Solenoid ouble Solenoid R-9 9, R-9 R-- ote) he materials and hardness of the conforms with S. 9 Seal it umber S- art o. art ame ody lug Spool Retainer Retainer Spring pin Spacer Spring 9 Spring ut Rod Solenoid guide Solenoid coil acking erminal box kit ameplate 9 art o. art ame ody Spool Spacer older Spring Spring lug 9 ameplate erminal box kit Solenoid coil Solenoid guide Rod ut S- Single Solenoid ouble Solenoid Single Solenoid ouble Solenoid S- S- S- S- Solenoid Valve -

248 S Y S R R VV S Series (Wiring System: onnector ype) ower ower Solenoid Valve eatures l/min a qow current, low power he S series magnetic switching valve s solenoid has significantly lower power consumption. w irectly drivable by a programmable controller ow-current operation means not only allows direct drive by a programmable controller () output circuit, it also enables the use of a compact and simple control circuit. eittle coil temperature rise ow power operation means there is little heat generated from the coil, which minimizes the effects of heat on mechanisms. ven with the solenoid, there is little chance of coil burnout. r asy coil replacement connector type coil enables onetouch coil replacement. t lobal compliance ( size) eets overseas safety standards ÜV ( marking). an be used safely around the world. Solenoid Valve peration Symbol X X X X Specifications b b S Symbol b b b b andling zn order to realize the full benefits of the solenoid valve, configure piping so oil is constantly supplied to the (R) port. xnsure that surge pressure in excess of the maximum allowable back pressure can be accidentally at the port. Solenoid ssembly Specifications a a a a a aximum low Rate l/min S--**-()R-**- aximum Working ressure a{kgf/cm } {} ote) he maximum flow rate of each valve depends on the pressure. or details, see page -. cote that the maximum flow rate is limited when used as a four-way valve, or by blocking ports for use as a two-way valve or oneway valve. vlways keep the operating fluid clean. llowable contamination is class S or less. bwhen using petroleum type operating fluid, use S lass or lass, or equivalent. nuse the S series solenoid valve if using flame resistant operating fluid. me sure to note the allowable pressure range of the coil being used.,aintaining a switching position under high pressure for a long period can cause abnormal operation due to hydraulic lockup. ontact your agent when you need to maintain a switching position for a long period..when using a detent type (X), provide constant energization when secure maintenance of the switching position is required. ote that manual pin operating pressure changes in accordance with tank line back pressure. f you select the solenoid ( power model), reverse surge voltage occurs because there is no diode mounted in the connector. herefore, install solenoid valves to protect against current back surge on both ends of the coil in the output circuit of the programmable controller () if directly operating the solenoid valves. (Recommended diode: itachi V or equivalent) Solenoid ype uilt-in rectifier type ower Supply ype Voltage (V) requency (z) or S- Solenoid oil ype olding urrent () olding ower (W) llowable Voltage Range (V) -.. to -... to. -

249 Solenoid ype Solenoid S- aximum Working ressure,, orts a{kgf/cm } aximum llowable ackpressure port a{kgf/cm } hangeover requency (per minute) Standard Weight (kg) perating nvironment undled ccessories ndicator light Surgeless ouble Solenoid. Single Solenoid. ust Resistance/Water Resistance Rank R S 9 (ust-tight, Waterjet-proof) mbient emperature - to perating luid emperature Range - to inematic Viscosity Range to mm /s iltration ounting bolt ightening orque ote) or mounting bolts, use bolts of.9 strength classification or equivalent. xplanation of model o. S X R μm or less nternal solenoid for rectifier Refer to page -9 for bolt lengths for usage of x -module valves. esign number : or size to m { to kgf cm} ower supply : =V : or (joint / z inside rectifier) =V uxiliary symbol R: Surgeless type with indicator (applicable for power supply only) R: With indicator light (applicable for power supply only) ransition low ath (Specify for X, X only) X losed R Solenoid Valve peration ethod Spring ffset Spring enter etent b a b a b ominal pipe diameter size ounting method : asket type enter valve position flow path ow-power solenoid valve with connector a -

250 nstallation imension rawings S-- ***-()R-**- S--***-()R-**- ote) or S--X-()R-**-, the solenoid is on the opposite side as that shown in the diagram (S.a). VZ φ. () 9.(9) S b. Solenoid Valve S--**-()R-**- S--X-()R-**- in for manual operation. Space required for coil removal VZ.... VZ φ. 9. Space required for coil removal S b. S a ote) asket surface dimensions and sub plate are the same as those for SS-. See page - for more information. or sub plate S- φ. φ. 9.(9) () in for manual operation odel o. Weight S-X- /.kg S-Y- /.kg asket Surface imensions S ---- S ---- ( ) φ. X φ φ 9. X counterbore. hole - Rc -

251 onnectors odel o. Wiring lectrical ircuit iagram S--***-R-- (-R) onnect the power supply to terminals o. and o.. he terminal is ground. Use this terminal as required. V ± S--***-- (-) S--***-R-- (-R*-) (reviously ) / ower supply terminal onnect the power supply to the terminals on the board. When ground connection is required, remove the board and use the terminal. n this case, do not connect the power supply to the o. and o. terminals. /z /z Solenoid Valve Symbols in parentheses indicate connector configuration. ote). sterisks in the connector configuration and power supply symbols are fillers for the voltage symbol ( or ).. he connector cord diameter is φ to φ. nything outside this range causes water tightness to be lost.. he orientation of the connectors can be changed in 9 increments by changing the terminal block.. he cover cannot be removed unless the installation screws are removed.. Use for round type and Y type solderless terminals.. ighten the screws that secure connectors and terminals to a torque of. to. m (. to.kgf cm). -

252 Solenoid Valve erformance urves ifferential ydraulic luid inematic Viscosity mm /s ressure oss haracteristics. ressure oss a.... ressure - low Volume llowable Value low rate l/min f e d c b a ump ype low ath S- X d f X f f e e X f f e e X c c e e b b b b d e e d d f f a a ump ype S- peration xample b a b a b peration Symbol X X X X low rate l/min ressure a ote). he maximum flow rate is the value when a rated 9%V is applied following solenoid temperature rise and saturation.. he maximum flow rate is the allowable value of each port. a -

253 ross-sectional rawings S--X-()R-**- ist of Sealing arts art o. art ame ote) he materials and hardness of the conforms with S. S--*-()R-**- 9 art umber S- Q'ty Single Solenoid ouble Solenoid S-(R-9) R-- 9 R-9 S-(R--) 9 9 art o. art ame ody lug Spool Retainer Retainer Spring pin Spacer Spring 9 ut Rod Solenoid guide Solenoid coil acking erminal box kit ameplate 9 art o. art ame ody Spool Retainer Retainer Spacer Spring ut Rod 9 Solenoid guide Solenoid coil acking erminal box kit ameplate Solenoid Valve S--X-R-**-() art o. 9 art ame ody Spool Retainer Retainer Spacer Spring etent spring ut Rod Solenoid guide Solenoid coil acking erminal box kit ameplate 9 -

254 W Y S R R R VV S Series (Wiring System: entral erminal ox) ower ower Solenoid Valve eatures l/min a qvery long life he movable iron core of the wet type solenoid is immersed in oil, which keeps it lubricated and cushions it from impact and vibration, ensuring very long life. wow switching noise he wet-type solenoid valve provides very low core switching noise, for quiet operation. eow power consumption type. he low power for the solenoid 9. W ( z), solenoid W contribute to energy conservation. rasy connections special wiring box provides a port and indicator light as standard for simple wiring and maintenance. tasy coil replacement plug-in type coil enables one-touch coil replacement. ywide-ranging backward compatibility makes it simple to replace previous valve models with this one. ombining this valve with a modular valve contributes to the compact configuration of the overall device. ulobal standard eets overseas safety standards (, U, and S). t can be safely used anywhere in the world. ontact your agent for certified products. Solenoid Valve Specifications S Symbol b peration symbol -- aximum flow rate (l/min) S Symbol b a peration symbol -- aximum flow rate (l/min) b a -- -X- b b a a a -X- b a -9- b b a a -X- -- b b a a -S- -Y- b a -- Solenoid Solenoid Solenoid ype uilt-in Rectifier aximum Working ressure,, orts a{kgf/cm } aximum llowable ackpressure ort a{kgf/cm } hangeover requency (per minute) Standard ndicator light R Surgeless ptions With manual push-button Quick Return Q Weight (kg) ouble Solenoid.. Single Solenoid.. ust Resistance/Water Resistance Rank S 9 (ust-tight, Splash-proof) mbient emperature to perating nvironment emperature Range to inematic Viscosity Range to mm /s iltration μm or less ounting bolt ex bolt with hole of.9 strength classification each ightening orque to m{ to kgf cm} perating luid ote) ounting bolts are not included. -

255 andling zn order to realize the full benefits of the wet type solenoid valve, configure piping so oil is constantly supplied to the (R) port. ever use a stopper plug in the (R) port. xnsure that surge pressure in excess of the maximum allowable back pressure does not reach the port. cote that the maximum flow rate is limited when used as a four-way valve, or by blocking ports for use as a two-way valve or one-way valve. vlways keep the operating fluid clean. (contamination level: or lower) bwhen using petroleum type operating fluid, use S lass or lass, or equivalent. nuse the SS series solenoid valve when using fire resistant hydraulic operating fluid. muse this valve only within the allowable voltage range.,o not allow the solenoid to become charged until you install the coil into the valve..aintaining a switching position under high pressure for a long period can cause abnormal operation due to hydraulic lockup. ontact your agent when you need to maintain a switching position for a long period. When using a detent type (X), use constant energization in order to securely maintain the switching position. ote that manual pin operating pressure changes in accordance with tank line back pressure. Use the following table for specification when a sub plate is required. odel o. ipe iameter aximum flow rate (l/min) S-X- / S-Y- / Weight (kg). Solenoid ssembly Specifications or Solenoid ype Solenoid uilt-in Rectifier Solenoid ower Supply ype Voltage (V) ycles (z) / Solenoid oil ype rive urrent () olding urrent () olding ower (W) llowable Voltage Range (V) to 9 to to to 9 to. to. llowable ressure (a{kgf/cm }) {} nsulator Resistance (Ω) or greater ( V) ote). solenoid surge absorption circuit is effective in preventing misoperation in sensitive relays and circuits. (pplicable for power supply display, option: ). solenoid R type (power supply ) greatly increases the life of the contacts by eliminating contact arc without changing circuit sequence on an line, /z can be used. xplanation of model o. S - - X - * R - - esign umber ower supply : (/ z) =V =V : or =V : (uilt-in rectifier; /z) =V With indicator light uxiliary symbol (an be combined in alphabetic sequence.) : Surgeless type (ower supply * pplicable) : With manual push-button (vailable with power supply, ) Q: Quick return type (vailable with power supple ) ransition flow path (X, X, X, Y only) X Y lose Semi-open enter position (R) (R) (R) 9 S (R) (R) (R) (R) (R) ote is pressure port, and are connection ports to cylinder. (R) shows the connection port to the tank. peration ethod Spring ffset type Spring enter etent b a b b a a (R) Solenoid Valve ominal iameter: size ounting method: asket type achine type: S Series wet magnetic switching valve. -9

256 Solenoid Valve ptions (uxiliary Symbol) Surgeless ype (uxiliary Symbol: ) he surge pressure waveforms when the solenoid valve power supply is opened and closed by a relay are shown at the bottom of this block. built-in surge absorber element eliminates sparking and surge pressure. eatures Surge voltage is inhibited. Sparking at relay contact points is eliminated. Spark time Standard ype Surgeless ype anual ush-button ype (uxiliary symbol: ) ush-button an be locked by pressing the button and rotating 9.. Stroke. Quick Return ype (uxiliary Symbol: Q) ower supply SW Surge absorber ull Wave Rectifier ircuit Solenoid andling zhis type is used in the case of power supply type (with built-in rectifier) to shorten the spring return time. his also applies to. xhe quick return mechanism is built-in. Recovery ime imiter ircuit -

257 nstallation imension rawings Solenoid S-- **-R-*- S--**-R-*- ote) he S--**-R-**- solenoid, is attached to the opposite side (S a) as shown in the diagram. - (reviously ) / ndicator light S b φ. oles for temporary nameplate or customer s nameplate mounting holes for wiring. Recommended nameplate dimensions. Self-tapping screws for mounting;. x. ndicator light S a φ. S--**-R-*- S-- **-R-*- Solenoid and Rectifier S-- **-R-/*- S--**-R-/*- S-- **-R-/*- S-- **-R-/*-.. anual push-button. Space required for coil removal S b S b S b S a φ. S a Solenoid Valve or sub plate S-. Space required for coil removal 9.. φ.. odel o. Weight S-X- /.kg S-Y- /.kg asket Surface imensions S ---- S ---- ( ) φ. X φ 9.X counterbore φ. hole - Rc -

258 Wiring iagram round terminal ommon terminals S b S b round terminal S a ote). n the case of a double solenoid valve, a common terminal is provided to simplify wiring. When the common terminal is not used, remove the terminal screws.. Use the ground terminal when grounding is required.. Use an type as a solderless terminal.. ighten terminal screws to a torque of. to. m {. to.kgf cm}. S a lectrical ircuit iagram ype odel o. lectrical ircuits Solenoid Valve Solenoid S--***-R-*- /z /z Solenoid Surgeless ype S--***-R-*- uilt-in Rectifier S--***-R-*- /z ± Solenoid S--***-R-*- ± Solenoid Surgeless ype S--***-R-*- uilt-in Rectifier Quick Return ype S--***-QR-*- See page - for more information. -

259 erformance urves ressure oss haracteristics.. ressure oss (a)..... {kgf/cm }... e. d. c b f. a low rate (l/min) ydraulic perating luid inematic Viscosity mm /s {cst} low ath c c c c X, X, X b b e e c c a c a c e c a a c c d, S c c c c c c a a Y f f e e d 9 a a e e ressure low Volume llowable Value peration Symbol peration xample b X, X, X,,,, 9, S a Y b a b a low rate (l/min) Solenoid Valve {} {} ressure (pa) {kgf/cm } {} {} Switching Response ime Response ime (sec) odel o. easurement onditions Solenoid Spring Return S--**-R-*-. to.. to. a{kgf/cm } S--**-R--. to.. to. S--**-()R--. to.. to. l/min mm /s {cst} ote). he switching response time changes slightly with operating conditions (pressure, flow rate, viscosity, etc.). n the case of power supply type (with built-in rectifier), the spring return time using Quick Return (option symbol: Q) is the same as. -

260 Solenoid Valve ross-sectional rawings S--**-R-*- 9 S--**-R-/*- 9 S--**-R-*- 9 9 S--**-R-/*- 9 9 ist of Sealing arts art o. art ame S ype/ art umber S Single Solenoid Q'ty ouble Solenoid S-(R-9) R-- R-- 9 R-9 S-(R--) S-(R--) ote) he materials and hardness of the conforms with S. S is S standard. Seal it umber art o. 9 art ame ody lug Spool Retainer Retainer Retainer Spacer Spring Spring ut art o. 9 art ame Rod Solenoid guide Solenoid coil acking erminal box kit ameplate S. S. Single Solenoid ouble Solenoid Single Solenoid ouble Solenoid S- S- S- S- -

261 SS(S) Y S R R R VV SS (S) esign Series Solenoid ontrol Valve eatures to l/min to a qong-life operation is ensured by use of the high-performance, renowned SS(S)- wet solenoid valve as the pilot valve. wigh pressure, high capacity he size can provides up to l/ min, while the size delivers up to l/min. eow pressure loss n original flow path design provides wide-ranging low pressure loss and enhanced system circuit efficiency. rnternal modification of the pilot and drain can be accomplished without removing the valve by simply connecting and disconnecting plugs. tuilt-in pilot pressure check valve When tandem center type valve is used for the internal pilot valve (option), pilot pressure required for switching is self-maintained. Specifications Valve Size Size Size Valve odel umber SS(S)--***-R-**- SS(S)--***-R-**- aximum Working ressure a{kgf/cm }... orts {} {} ort nternal rain ype {} {} xternal rain ype {} {} aximum low Rate l/min Rated low Rate l/min aximum ilot ressure a{kgf/cm } {} {} ** (Spring ffset ype) Solenoid Valve inimum pilot pressure a{kgf/cm } ** (o-spring etent ype) ** (Spring enter ype) ** (ressure enter ype).{.}.{.}.{.}.{.} uilt-in ilot ressure heck Valve ype (or nternal ilot). {.} (for *Z, *, **, * pilot pressure generation) aximum hangeover requency (cycles/minute) ** (Spring ffset ype).. ilot Volume (cm ) ** (Spring enter ype).. Weight (kg) ** (Spring ffset ype).(9.).(.) ** (o-spring etent ype) 9.(.).(.9) ** (Spring enter ype) perating nvironment undled ccessories ** (ressure enter ype).. ust-resistance/water-resistance Rank S 9 SS: (ust-tight, Splash-proof) S: (ust-tight, Waterjet-proof) mbient emperature - to perating luid ounting bolt emperature Range - to inematic Viscosity Range to mm /s iltration ightening orque -m{kgf-cm} (wo) (our) to { to } to { to } μm or less ote). he maximum flow rate of each valve depends on the pressure. or details, see pages - and -.. Weight in parentheses is for stroke adjustment type.. Solenoid specifications are the same as those for SS (S)-. or more information, see pages - and -.. or mounting bolts, use bolts of.9 strength classification or equivalent. (Six) to { to } -

262 andling zilot pressure values show the differential pressure between the pilot port and tank port or drain port. n the case of the pressure center, they show differential pressure between the pilot and drain ports (R, R). xhe standard configuration is internal pilot and external drain, but other configurations are possible when required. See page - for more information. che S number on the nameplate indicates the standard internal pilot and external drain. ote therefore that the S numbers on page - and - are used even if the pilot is external and the drain is internal. vhe maximum operating pressure for internal pilot is a because it is limited by the pilot pressure. bor the mounting type SS(S)- **-*-**-, open cross over with restrictor Y is standard. nwhen adjustable spool stroke is desired, specify in the auxiliary symbol position of the model number. ote, however, that this is not available with the pressure center type. mwhen using a detent type (*), use constant energization in order to securely maintain the switching position.,use of the pressure center type is recommended for large-volume flow control..or the all ports open center type (Z, Z,, ), mounting type (X, Y, X, Y), and mounting type, use the type with built-in external pilot pressure check valve. he coil surface temperature increases if this valve is kept continuously energized. nstall the valve so there is no chance of it being touched directly by hand. Valve odel umber SS(S)- SS(S)- Solenoid Valve ront osition he pilot solenoid valve on the size and the size are mounted in opposite directions. Refer to the middle of the next page for models of the pilot solenoid valve that are mounted. Simplified Symbols a b Y(R) b a Y(R) a ' ' b b ' ' a etailed Symbols ' ' Y(R) ' ' Y(R) low Regulator djusting Screw ositions djustable Stroke djusting Screw ositions ort Restrictor: Right side ort Restrictor: eft side ort Side:, flow rate adjustment (or Y,, ) ort Side:, flow rate adjustment (or Y,, ) port side ort Restrictor: eft side ort Restrictor: Right side port side -

263 xplanation of model o. SS Y **R* esign number ower supply : (/z) =V =V =V =V : =V =V : (uilt-in rectifier; /z) =V =V =V =V : nternal drain : xternal pilot : Spool stroke limiter : low regulator valve to restrict port ilot pressure check valve one: o check valve : uilt-in check valve enter valve position flow path,,,, S,,, S,, S S peration ethod : Spring offset : o-spring detent : Spring center : ressure center uxiliary symbol (or multiple specifications, use alphabetic sequence.) Y: With meter-out flow regulator valve R: With indicator light SS type: Standard S type: ptional ransition flow path (Specify for **, ** only.) X: losed Y: Restrictor open Z: pen ominal diameter size, size ounting method : asket type ump ype SS: entral terminal box solenoid control valve S: connector type solenoid control valve : With manual lock Q: Quick return type R: Surgeless type with indicator X Y Z losed Semi-open pen Spring ffset o-spring detent Spring enter ressure center Y(R) Y(R) Y(R) (R) Y(R) Solenoid Valve ilot (), rain (R) *igh ilot ressure Use at pressures that do not exceed a{kgf/cm } *nternal, external R are achi-ujikoshi standards. or external : uilt-in stopper plug (ption ) or internal R: Stopper plug modification (ption ) *nternal R recautions ake sure that the differential pressure between the pilot pressure and tank back pressure is greater than the minimum pilot pressure. o not connect any pipe that generates sudden surge pressure. uilt-in ilot Solenoid Valve Valve odel umber or or SS(S)-**-** SS(S)--X SS(S)--X SS(S)-**-** SS(S)--X SS(S)-**-** SS(S)-- SS(S)-**-** SS(S)--9 uilt-in ilot ressure heck Valve *ike the Y, this internal type is used in a flow path configuration where maintenance of pilot pressure is required. ressure oss (a) heck Valve ressure oss {kgf/cm }.. size. size.. low rate (l/min) etent ype nstallation Y(R). *nstall the valve in a horizontal configuration. *rovide constant energization for secure holding. X () a Y(R) ote) bove symbols are for SS (S)-. djustable Stroke ype *ightening the adjusting screw makes the main spool stroke smaller, which restricts flow. ressure center *Use this valve in a high-pressure, large-volume circuit to ensure reliable return of the main spool to the neutral position. Simple a symbols b Y (R) Size or or low Regulator Valve *Rotating the adjusting screw clockwise (rightward) slows the main spool switching speed. : xcitation of the solenoid (starting of the actuator) causes a restrictor effect. Y: he restrictor effect can be obtained especially when the solenoid is de-excited (actuator stopped). ilot Valve ounting olts Standard Stage Stage Stage Sub late umber odel o. (four) (four) (four) (four) (ightening orque: to m { to kgf-cm}) onnecting ipe iameter S-- Rc / S-X- Rc / S-- Rc / S-X- Rc Weight (kgf).. -

264 SS(S)--**-R-**- (Spring ffset ype) - φx counterbore φ. holes (R) port Used for pressure center type - φ.x counterbore φ holes X Y.().().(9) 9 X () port Used for external pilot Y (R) port Used for external drain Space required for coil removal SS type -/ (reviously ) S type S b. 9. Solenoid Valve SS(S)-- **-R-**- (o-spring etent ype) (Spring enter ype). S a 9 S b. - φ 9 SS(S)--**-R-**- (ressure enter ype) S a Y S b Y SS(S)-- **-RY-**- (low Regulator ype) SS(S)-- **-R-**- (djustable Stroke ype) 9 ilot flow rate adjusting screw S a S b (.) ock nut Stroke adjusting screw S a Y S b imensions in the parentheses are for the S--***-RY-**-. Y Stroke adjustment range max. asket Surface imensions S ---- S φ (pin hole).. - φ.. X 9 Y -x - φ..9. Y X -Rc/ -Rc or sub plate SS (S) - odel o. Weight S-- / S-X- /.kg. -x φ.x counterbore φ holes... -

265 SS(S)--**-R-**- (Spring ffset ype) (R) port Used for pressure center type Y (R) port Used for external drain X () port Used for external pilot.(9).().() 9 - φ xcounterbore φ. holes Space required for coil removal SS type -/ (reviously ) S type S a φ SS(S)-- **-R-**- (o-spring etent ype) (Spring enter ype) S b 9 S a SS(S)--**-R-**- (ressure enter ype) S b S a Solenoid Valve.. ilot flow rate adjusting screw S b imensions in the parentheses are for the S--***-RY-**-. asket Surface imensions S a (.) SS(S)-- **-RY-**- (low Regulator ype) SS(S)-- **-R-**- (djustable Stroke ype) ock nut Stroke adjusting screw Stroke adjustment range. S ---- S ---- or sub plate SS (S) X Y - φ x (pin hole) - φ x counterbore φ holes - φ holes Rc/ (back) 9 S b max. S a odel o. Weight S-- / S-X-.kg φ hole Rc/ (back).. -x - φ holes Rc (back) -9

266 Solenoid Valve -osition Spring ffset ype -osition Spring enter ype erformance urves ydraulic perating luid inematic Viscosity mm /s SS(S)- odel o. S Symbol ressure - low Rate llowable Value odel o. S Symbol ressure - low Rate llowable Value SS(S) - SS(S) - -X- a a a a a a a a b Y b Y Y Y Y Y Y Y Y Y Y Y b b b b b b b b b low rate l/min {} {} {} ressure a{kgf/cm } -.a{.kgf/cm } -.a{.kgf/cm } low rate l/min low rate l/min low rate l/min {} {} {} ressure a{kgf/cm } {} {} {} ressure a{kgf/cm } {} {} {} ressure a{kgf/cm } ote) he S number indicates the standard internal pilot and external drain. ressure oss haracteristics ressure oss a{kgf/cm }.{.}.{.}.{.}.{.}.{.}.{} low rate /min -osition o-spring etent ype -osition ressure enter ype -X- ote) nterpreting the ressure oss Value a b Y (R) t center urve urve urve a a a a a a a a a a Y Y Y Y b b Y Y Y Y Y Y Y Y b b b b b b b -X- SS(S) - -Xa -Z- -Z- -Y- -Yb -- SS(S) S- -Sa -Sa -Sb Yb -Yb low rate l/min low rate l/min {} {} {} ressure a{kgf/cm } {} {} {} ressure a{kgf/cm } Switching Response ime odel o. : SS-- Voltage Symbol: ( Solenoid) t switching sec... S, S, {} {} {} {} {} ilot pressure a{kgf/cm } -

267 SS(S)- -osition Spring ffset ype odel o. S Symbol ressure - low Rate llowable Value odel o. S Symbol ressure - low Rate llowable Value SS(S) - a Y a Y Y a low rate l/min {} {} {} ressure a{kgf/cm } -osition o-spring etent ype SS(S) - b b Y a a Y Y -X- -Xb -Z- -Z- -Y- -Ya low rate l/min {} {} {} ressure a{kgf/cm } -osition Spring enter ype SS(S) - SS(S) S- -S S- -- b b b b b b a Y b a Y b a Y b a Y b a Y b a -Sb b Y Y Y Y Y Y Y a a a a a a a -.a{.kgf/cm } -.a{.kgf/cm } low rate l/min low rate l/min {} {} {} ressure a{kgf/cm } {} {} {} ressure a{kgf/cm } -osition ressure enter ype -- Y b a Y low rate l/min {} {} {} ressure a{kgf/cm } Solenoid Valve -X- b b Y Y a -- -X- -Y- -Ya low rate l/min {} {} {} ressure a{kgf/cm } ote) he S number indicates the standard internal pilot and external drain. -- b a Y b a Y ressure oss haracteristics ressure oss a{kgf/cm }.{.}.{.}.{.}.{.}.{.} low rate l/min ote) nterpreting the ressure oss Value b t center a Y (R) urve urve urve Switching Response ime odel o. : SS-- Voltage Symbol: ( Solenoid) t switching sec... S, S, {} {} {} {} {} ilot pressure a{kgf/cm } -

268 ross-sectional rawings SS(S)--**-R-*- ilot, rain System hange 9 R X R Y(R) X() ross-sectional - ross-sectional R-R Solenoid Valve SS(S)--**-R-*- ilot, rain System hange 9 R R X X() ross-sectional - Y(R) ross-sectional R-R art o. art ame art o. art ame art o. art ame hanging the ilot and rain onnections fter hange exagon Socket ead lug ody over Spool Ring Spring ameplate Screw 9 lug lug lug in Solenoid Valves Screw ilot rain nternal Switch from to X. xternal Switch from X to. nternal Switch from to. xternal Switch from to. ist of Sealing arts Seal it umber art o. art ame art umber size Size Q'ty size Size Single Solenoid ouble Solenoid Single Solenoid ouble Solenoid R-9 R-9 R-9 R-9 R-9 R-9 R-9 9 R-9 R-9 R-9 ote). he materials and hardness of the conforms with S.. See SS/S--**-for information about the seal part for the pilot solenoid valve. S-- S-- S-- S-- ote) he seal kit includes a seal for the pilot solenoid valve. -

269 S VV ine Solenoid Valve S Series to l/min a eatures qhe function of two valves in one two-speed controller provides smooth speed adjustment from low speed to high, and from high-speed to low. wquiet starts and stops low-speed startup and stop feature makes startups and stops smooth and soft. Specifications eseparate control of forward and back cylinder movement here are five volume settings for highspeed flow rate and acceleration/deceleration times that can be independently adjusted S.a and S.b ( side, side). odel o. S- S- S- tem -*-- -*-- -*-- Valve aximum perating ressure a{kgf/cm } {} aximum low Rate l/min(ote) igh-speed low Rate l/min(ote) to to to ow-speed low Rate l/min(ote). to to to aximum llowable ressure a{kgf/cm } {} cceleration/eceleration ime djustment Range S. to ysteresis (ote ) % Repeatability (ote ) % ower Supply Voltage V : V regulated power supply aximum ower onsumption W W ust Resistance/Water Resistance Rank S 9 (ust-tight, Rain-proof) mbient emperature to emperature Range to perating inematic Viscosity Range to mm /s luid iltration μm or less Size x ength (four) ightening orque to m{ to kgf cm} perating nvironment ounting bolt andling zvalve differential pressure Volume adjustment becomes sensitive when () and () differential pressure is large. aintain the pressure differential so it is no greater than.a {.kgf/cm }. xow-speed flow rate he spool may not move if the lowspeed flow rate is below the minimum. Use this valve only within the allowable minimum low-speed flow rate range. ceceleration circuit Use a ** spool for the deceleration circuit. eceleration is difficult with the S** spool. When large deceleration is required or for a system that uses a vertical cylinder, equip an external drain type counter balance valve. See the illustration below. vilot check circuit or a circuit with a pilot check valve, knocking may occur in the pilot check valve due to large load inertia and circuit pressure loss. n cases like this, use an external drain type pilot check valve. See the illustration below. Solenoid Valve ote). he above high-speed and low-speed flow rates are obtained with a differential pressure (, ) of.a {.kgf/cm }. he flow rates depend on differential pressure.. ysteresis and repeatability values are those at maximum flow rate.. or mounting bolts, use bolts of.9 strength classification or equivalent.. ounting bolts are not included. b R a b a R xplanation of model o. S * * * * R When large brake pressure is required (Use an external drain type counter valve.) When there is the possibility of pilot check valve knocking (Use an external drain type pilot check valve.) esign number ower supply With indicator light uxiliary symbol one: Sink : Source : V aximum flow rate:,, l/min enter position:, S peration ethod: (Spring center) ounting method ine solenoid valve : asket type ominal diameter: ( size) bnvironmental conditions he circuit board is located inside the central control box, so care must be exercised concerning water-resistance and ambient temperature. Water: over the box so there is no direct splashing with water. mbient emperature: Use in an area where the temperature is to. nperating luid lways keep the operating fluid clean. llowable contamination is class S or less. Use oil-based hydraulic operating fluid. ontact your agent when you want to use fire-resistant hydraulic fluid. (ontinued on following page) -

270 mote the following points to optimize operation. () ontrol oil temperature when using this valve. Since the valve perform restrictor valve control on all processes, temperature differential changes flow volume and acceleration/deceleration time. he recommended temperature range is to. () uring the positioning operation following deceleration, make sure lectrical Wiring that sufficient low-speed running is provided following deceleration before stopping operation. f lowspeed operation time is too short Spool ype and S Symbols Spool ype ** S** S Symbol b a b a can cause stopping during deceleration and shock problems due to fluctuation in load, etc. Sink ype (uxiliary Symbol: one) Switches on load and power supply minus side Source ype (uxiliary Symbol: ) Switches on load and power supply plus side terminal (+) SW ow-speed signal input terminal ow-speed igh-speed ow-speed Solenoid Valve V regulated power supply + SW SW igh-speed signal input terminal V regulated power supply ow-speed signal input terminal terminal ( ) + SW igh-speed signal input terminal igh-speed signal ow-speed signal Switch SW Switch SW ime djustment lements ontrol attern low rate igh-speed signal ow-speed signal cceleration time adjustment VR side ow-speed flow rate adjustment VR SW SW (S b) cceleration time adjustment VR (S b) side low-speed flow rate adjustment VR (S b) side low-speed flow rate adjustment VR (S b) eceleration time adjustment VR (S b) igh-speed flow rate adjustment VR igh-speed flow rate adjustment VR ime S b ecreation time adjustment VR side ow-speed flow rate adjustment VR S a (S a) igh-speed flow rate adjustment VR (S a) eceleration time adjustment VR (S a) side low-speed flow rate adjustment VR (S a) side low-speed flow rate adjustment VR (S a) cceleration time adjustment VR lectrical ontrol recautions o not introduce a high-speed signal prior to a low-speed signal. ake sure the two signals are introduced simultaneously or that the low-speed signal is introduced first. () Repeatedly introducing the highspeed signal first in a source type configuration can damage the board. () he valve will not operate on the highspeed signal only. he following adjustments in the range of VR through VR can be made independently for S.a and S.b. You can make adjustments for the best conditions for forward and back operations when considering the cylinder operations. djustment volume is arranged in from VR through VR in clockwise (rightward) rotation sequence when viewed from the coil side. he following are the factory default volume settings. VR inimum setting VR aximum setting ll djustment VRs aximum is clockwise (rightward) (ax.) rotation. he volume rotation angle is. ontact your agent about a three-rotation type adjustor for fine adjustment. -

271 9. nstallation imension rawings S--***-()R-- ndicator light (S b) ndicator light (S a) to (reviously ) /.. S b φ. S a. Solenoid Valve erformance urves ressure low Rate haracteristics S ydraulic perating luid inematic Viscosity mm /s Use the valve within the allowable flow rate range shown by the graph to the eft. here are no operational problems within the allowable flow rate range, even when one-pass is used. low rate /min l S S {} {} ressure a{kgf/cm } ontrol Waveform xample ontrol flow rate. l /min imer set ax ontrol flow rate l /min SW SW imer set ax ontrol flow rate. l/min Valve: S---R-- Supply ressure:a{kgf/cm } ydraulic ircuit b a. ime.s -

272 ross-sectional rawing S--***-()R Solenoid Valve art o. art ame Seal art ist (it odel umber S) art o. art ame ype/art umber Q'ty S-(R-9) S-9(R--) S-9(R-9) 9 S-(R-9) ote ote). he materials and hardness of the conforms with S.. Special flurorubber is used (art umber: R--VS). 9 9 ody over Spool Retainer Spacer Spring ut Solenoid guide Solenoid coil acking oil case oil yoke entral terminal box kit ameplate exagon Socket ead olt -

273 Y S VV S Series on-leak ype Solenoid Valve to l/min a eatures q Virtually no internal leakage poppet structure minimizes internal leaks from low pressures to as high as a {kgf/cm }. nhanced hydraulic circuit efficiency reduces energy needs. w Virtually no pressure loss at high volumes n original fluid reaction force suppression mechanism is provided for all sizes. hough compact, this valve provides the highest level switching capacity for its class. Specifications S Symbol eigh reliability Since a wet type solenoid valve is used, the movable iron core remains immersed in oil as it moves, which minimizes switching noise and ensures reliable operation. wet type valve also provides superior water resistance and longer life than a dry type valve. r S standard mounting service (, sizes) his valve can be ganged together with a modular valve, enabling simple configuration of circuits and an overall odel o. S- S- S- S- R Q aximum Working ressure a{kgf/cm } (,, orts) Rated low Rate - aximum low Rate l/min b R,Q;- ; - b {} aximum hangeover requency (per minute) perating nvironment ounting bolt ust Resistance/Water Resistance Rank perating luid a S 9 (ust-tight, Waterjet-proof) (ote ) mbient emperature - to emperature Range - to inematic Viscosity Range to mm /s iltration μm or less ust-tight, ( Splash-proof) Weight R Q()kg.(.)...9 Size x ength (our) (our) (our) (our) ightening orque m{kgf cm} to { to } to { to } to { to } to { to } ote). nternal leaking does not exceed droplet/minute (.cm /min).. he power supply type for * is (dust-tight, splash-proof).. or mounting bolts, use bolts of.9 strength classification or equivalent.. ounting bolts are not included with the size. olts are included with the,, sizes. compact device configuration. t connector for improved switching ( size) uring switching, twice the current (starting current) flows to the coil than normal (holding current), which ensures reliable switching operations. he size has compact configuration made possible by an original design that uses a small coil that provides high output, without the need for a large coil. andling zake care so the port is not subjected to abnormal surge pressure that is in excess of the maximum operating pressure. xhe manual switching (options, ) push pin receives port pressure, so it cannot be pushed with pressure in excess of about a { kgf/cm }. lso, note that with the Q and types, even if the manual switching push button (option ) is locked, leaks are not completely stopped. cuse this valve only within the allowable voltage range. vuse of water- or glycol-based hydraulic operating fluid is standard. ontact your agent about using other fire-resistant hydraulic fluid. blways keep the operating fluid clean. llowable contamination is class S or less. nn order to realize the full benefits of the wet type solenoid valve, configure piping so oil is constantly supplied to the port. mhe coil surface temperature increases if this valve is kept continuously energized. nstall the valve so there is no chance of it being touched directly by hand.,ever try to take this valve apart. he cap seal cannot be reassembled without using special tools. Solenoid Valve -

274 Solenoid ssembly Specifications (S-) Solenoid ype ower Supply ype Voltage (V) requency (z) Solenoid oil ype or S- urrent () ower (W) llowable Voltage Range (V) Solenoid oil ype or S- urrent () ower (W) llowable Voltage Range (V) with uilt-in Rectifier / to -. 9 to.. / -- to - to.. / --. to -. to.. / -- to -.. to --.. to. -.. to. Solenoid Valve --.. to. -.. to. Solenoid ssembly Specifications (S-, ) Solenoid ype with uilt-in Rectifier ower Supply ype Voltage (V) requency (z) Solenoid oil ype Solenoid ssembly Specifications (S-) or S- urrent () ower (W) llowable Voltage Range (V) / -. 9 to / -. to -.. to. Solenoid ype ower Supply ype Voltage (V) requency (z) Solenoid oil ype rive urrent () or S- olding urrent () olding ower (W) llowable Voltage Range (V) / to with uilt-in Rectifier / to to. -

275 xplanation of model o. S R * ptions esign number : size :,, size ower supply : =V =V : (uilt-in rectifier; /z) =V =V (only with and sizes, there are no or size settings) =V =V (only with and sizes, there are no or size settings) uxiliary symbol (an be combined in alphabetic sequence.) : With manual switching pin : With manual switching push-button (with lock mechanism) R: With indicator light (excluding size) R: Surgeless type, with indicator (except for size or,, size power supply type *) peration symbol R: -port normal close Q: -port normal open : -port ( size) ominal pipe diameter:,,, size ounting method: asket type ump type S: on-leak type solenoid valve (uxiliary Symbol) Select options in accordance with size, as shown in the table to the right. () he size has an connector and a built in surge killer as standard. owever, an indicator light is not provided because of space considerations. () ption increases the measurement by the size of the pushbutton only. Size uxiliary symbol R R Solenoid Valve With manual push pin (uxiliary Symbol "") With manual push-button (with lock mechanism) (uxiliary Symbol "") an be locked by pressing the button and rotating 9. anual operation push pin o change in overall length verall length increases by mm. -9

276 lectrical ircuits hese electrical circuits are for sizes,,. n connector is used for size. See the next page for more information. Valve onnector ype Wiring lectrical ircuit iagram - (Standard for power supply type *) onnect the power supply to terminals o. and o.. he terminal is ground. Use this terminal as required. ± Solenoid Valve -R/- (* option: R) onnect the power supply to terminals o. and o.. he terminal is ground. Use this terminal as required. ± Size -R/- (* option: R) ± - (or power supply type *) -R/- (* option: R) (reviously ) / ower supply terminal onnect the power supply to the terminals on the board. When ground connection is required, remove the board and use the terminal. n this case, do not connect the power supply to the o. and o. terminals. /z /z ote). onnector types and indicate voltage. (: V or V ; : V or V ). Use a connector cord with a diameter that is in the range of φ to φ.. he orientation of the connectors can be changed in 9 increments by modifying the terminal block.. he cover cannot be removed unless the installation screws are removed.. Use an type as a solderless terminal.. ighten the screws that secure connectors and terminals to a torque of. to. m ( to.kgf cm). -

277 Size onnector S- provides large switching power, so an connector is used. uring switching, this connector supplies twice the current (starting current) that normally flows to the coil (holding current), and drops the current back to normal after switching is complete. urrent Voltage S Starting current olding current Surgeless S ime Valve onnector ype Wiring lectrical ircuit iagram Surgeless ype (V ) onnector - ower supply terminal + - imer ircuit W ircuit ote that correct polarity must be maintained with the power supply. Solenoid Valve Size (reviously ) / uilt-in Rectifier onnector -/ onnect the power supply to the terminals on the board. When ground connection is required, remove the board and use the terminal. n this case, do not connect the power supply to the o. and o. terminals. Round type, Y type, and other solderless terminals cannot be used. /z ull Wave Rectifier ircuit imer ircuit W ircuit ote) he orientation of the -** connector cannot be changed at 9 intervals by modifying the terminal block. -

278 nstallation imension rawings S-**-R-**- Rotatable (ote ) Space required for coil removal Wiring port (llowable cabtire cord diameter: φ to ) φ φ Valve ounding Surface imensions -R/Q(onforms to S ----) φ max. -x R/Q(onforms to S ----). φ max.. -x. Solenoid Valve imension able Size (ote)... 9 ote). he,, size power supply type * allows rotation at 9 intervals, but the size cannot be rotated.. Values in parentheses are for,, size power supply type *.. he and ports of the, sizes do not have grooves, so if the manifold has and ports, use end plates to close off the valve and ports. ontact your agent for information about end plates. S-**-Q-**- 9 (9.) (.) (.) ote) n mounting screw type is not yet available. -R/Q -R/Q φ max. -x φ max. -x Rotatable (ote ) Space required for coil removal 9.. imension able Size (ote).. 9 (9.). 9 (.) 9 (.)

279 S---*-*/*-... Rotatable Space required for coil removal (9 steps in the case of ote ) Wiring port (llowable cabtire cord diameter: φ to ) 9. 9(9.) S b φ 9 φ Valve ounding Surface imensions -(onforms to S ----) φ max. -x Solenoid Valve ote). ower supply type * allows rotation at 9 intervals.. Values in parentheses are for power supply type *. erformance urves ressure oss haracteristics ydraulic perating luid inematic Viscosity mm /s low ath Size a b c d, a {kgf/cm }. {kgf/cm }..... ressure oss pa. a b.. ressure oss a. c d low rate l/min low rate l/min -

280 ressure - low Volume llowable Value Size Size : R( ) : R( ) : Q( )&( ) : (,)&(, ) : R( ) : R( ) : Q( )&( ) low rate l/min low rate l/min Solenoid Valve low rate l/min {} {} {} ressure a{kgf/cm } S--R/Q : R(-) : R(-) : Q(-)&(-) low rate l/min S--R/Q : R(-) : R(-) : Q(-)&(-) {} {} {} ressure a{kgf/cm } ote) vailable flow rate values depend on pressure and fluid flow direction. he following shows how to read the data. : R ( ) il flow from port to port Valve operation symbol ndicates curve {} ressure waveform Solenoid signal {} {} {} {} {} {} ressure a{kgf/cm } Switching Response ime ressure : a{kgf/cm } low Rate : : l/min : l/min : l/min : l/min perating luid : S V ime (ms) {} {} {} {} {} {} {} ressure a{kgf/cm } Size ower supply Response ime (S) () () *. to.. to. *. to.. to. *. to.. to. *. to.9. to. *.9 to.. to. *. to.. to. *. to.. to. *.9 to.. to. ote) he switching response time changes slightly with operating conditions (pressure, flow rate, viscosity, etc.) -

281 ross-sectional rawings S--R-**- S--Q-** S---**- 9 9 art o. 9 art ame ody lug oppet Sleeve lunger Solenoid guide Ring ollar Solenoid stopper Spring Rod ut onnector Solenoid coil art o. 9 art ame oil case oil yoke ackup ring ap seal ross recessed head small screw ameplate Stopper Retainer Solenoid Valve S- -R-**- S- -Q-** ist of Sealing arts art o. art ame S-(R-9) R-9 R-9 R-9 R-9 R-9 R-9 R-9 9 S-(R-9) R-9 S-(R-9) R-9 S-(R--) S-9(R--) S-9(R--) S-9(R--) R-- S-(R--) S-(R--) S-(R--) ackup ring ap seal * * * * ote) he materials and hardness of the conforms with S. ackup ring indicates S -. *arts marked by an asterisk "*" are not available on the market. ontact your agent for more information. R,Q Q'ty -

282 S VV W R SW SW Series irectional control valve with monitoring switch eatures l/min a Solenoid Valve his valve is a spool activated directional control valve that uses mechanical detection to operate a switch to send an electric / signal. his makes it possible, by monitoring the status of the spool operations, to use it as an information source for safety checks by using the / signal as a basis for sequence control. n the future, they will be used in machinery that is compatible with international machine safety (S ) and S standards (S 9) perational rinciple When the spool is in the center position, the fixed and moving parts are in contact forming an electric circuit. perating the solenoid moves the spool so the moving part moves breaking the electric connection between the fixed and moving parts. Specifications standards. he directional control valve with monitoring switch was developed as a valve to support this demand. qhe switch contact has little dead zone and almost no temperature drift (variable motion caused by changes in temperature) or hysteresis because the reaction of the spool action is mechanical. wll valve functions, except for the monitoring function, are equivalent ixed contact point oving contact point to the standard solenoid operated directional control valve (S-). e connectors are used for the switches and solenoid coil wiring so connections are easy when installing or replacing valves. Spool Spool motion S- odel o. Standard ype Shockless ype Solenoid S Symbol peration Symbol aximum Working ressure a{kgf/cm } aximum low Rate l/min aximum Working ressure a{kgf/cm } aximum low Rate l/min b -X- b -X- b -- b b b a a a -- {} {} b b a a -S- -S- ote) he maximum flow rate of each valve depends on the pressure. or details, see page -. -

283 Valve Specifications Solenoid uilt-in Rectifier Solenoid aximum Working ressure Standard ype a,, ports Shockless ype a aximum llowable ackpressure port aximum low Rate Switching requency a See pressure-flow characteristics on page - for more information. /minute Weight ouble Solenoid.kg.kg Single Solenoid.kg.kg ust Resistance/Water Resistance Rank S 9 perating luid il-based operating fluid (ote ) perating nvironment ounting bolt (ote) mbient emperature Range - to perating il emperature Range - to perating inematic Viscosity Range to mm /s iltration μm or less Size ength Socket hex head bolt (.9 strength classification or equivalent), each ightening orque to m ote). Use a petroleum based operating fluid because the / mechanism of the valve's monitoring switch is immersed in oil and the oil must be a nonconducting fluid. Use only petroleum based operating fluid (do not use fluids that are water, glycol, W/ emulsion, phosphate, or fatty ester based). etroleum based operating fluids must also have a water content that is less than.% by volume.. nstallation bolts are not provided with valves. Use the specified bolts. onitoring Switch Specifications Voltage Rating V Solenoid Valve llowable Voltage Range aximum urrent oad ± % of voltage rating m Residual Voltage (ote ) max..v Wiring for onnector for Switch onnect with wires or - pin connector ote). See page - for the procedure to wire the connector for the switch.. he programmable controller input circuits are positive (+) common mode and negative (-) common mode. he directional control valve with monitoring switch uses a source circuit [switch on the positive (+) side of the load and power source] for safety purposes. ecause of this, it is necessary to use a negative (-) common mode programmable controller to receive input from the monitoring switch output.. Set the voltage of the power supply to the monitoring switch within a range that satisfies the following conditions. oad voltage + residual voltage < = switch supply voltage < =. V (+% voltage rating). he switch element (photocoupler) in the connector's internal circuit for the monitoring switch may malfunction in the state because of over voltage or over current. herefore, in addition to checking the output of the monitoring switch, monitor the current at the solenoid and the internal circuits of the connector and valve in conjunction with the switch output. ondition of monitoring switch output and valve urrent to Solenoid onitoring Switch utput bnormal alfunction at internal circuit of connector or valve ormal Spool is switching ormal Spool returns to middle position bnormal Valve malfunction or signal wire is cut he monitoring switch outputs according to the motion of the spool, so the solenoid turns on and off according to the output signal which is delayed only as much as the spool operation is delayed. Set a. second delay, including leeway, to monitor the output of the switch. -

284 Solenoid Specifications Same specifications as the S- series ( design). Solenoid ype ower Supply ype Voltage (V) requency (z) Solenoid oil ype rive urrent () olding urrent () olding ower (W) llowable Voltage Range(V) Solenoid Valve with uilt-in Rectifier andling zn order to realize the full benefits of the wet type solenoid valve, configure piping so oil is constantly supplied to the port. ever use a stopper plug in the port. xnsure that surge pressure in excess of the maximum allowable back pressure does not reach the port. cote that the maximum flow rate is limited when used as a four-way valve, or by blocking ports for use as a two-way valve or one-way valve. vlways keep the operating fluid clean. llowable contamination is class S or less. buse a S petroleum-based operating fluid, or an equivalent, that has a water content that is less than.% by volume. no not use fire-resistant operating fluid. muse this valve only within the allowable voltage range.,o not allow the solenoid to become charged until you install the coil into the valve. -...n the case of operation symbol X, run drain piping from the valve port. aintaining a switching position under high pressure for a long period can cause abnormal operation due to hydraulic lockup. ontact your agent when you need to maintain a switching position for a long period. ote that manual pin operating pressure changes in accordance with tank line back pressure. he solenoid has a pin for switching the spool manually. owever, use the cap (option symbol: ) to prevent manual operation for jobs were manual operation would cause a safety problem. he only way to prevent misoperation of the monitoring switch caused by noise generated by the solenoid turning on and off is to install the surgeless directional control valve with monitoring switch (option symbol: R). (f the solenoid power source is * and *).. to to.. 9 to to.. to to.. to.. to / to. / --. to / --. to. / --. to --.. to to. odel o. ipe iameter S-X- / aximum Working ressure a{kgf/cm } Use surgeless specification (with varistor diode) directional control valves with monitoring switches for all electric valves on the same machine to prevent misoperation of the monitoring switch caused by noise when the solenoid turns on and off. he coil surface temperature increases if this valve is kept continuously energized. nstall the valve so there is no chance of it being touched directly by hand. he connector for the solenoid is the same as for the S series solenoid valve.see page -9 for electrical circuit drawings and wiring procedures. Use the following table for specification when a sub plate is required. Recommended low Rate (l/min) S-Y- / {} Weight (kg) imension rawings age. - S-Y-- /.9-9 -

285 xplanation of model o. SW X R V esign number Solenoid power supply : V /z, V z : V /z, V z : V /z, V z : V /z, V z : V : V : V /z : /V /z : V /z : /V /z peration Symbol Wiring for connector for switch one: With mm wire V : With - pin connector (xample of connector with cable provided by customer: mron XS---) ption symbols one: o options (available with power supply *) : With cap to prevent operation of manual push pin : Shockless type (available with power supply * and *) R : Surgeless type, with indicator light (must be installed with power supply * and *) R : With indicator light (available with power supply *) ossible option symbol combinations ower Supply ption Symbols * R, R * R, R, R, R * one,,,, R, R, R, R ote) he only way to prevent misoperation of the monitoring switch caused by noise generated by the solenoid turning on and off is to install the surgeless directional control valve with monitoring switch. (ower supply * is the standard surgeless type, option symbol is not needed.) Solenoid Valve X b b a X b b a b S b a b a S b a ominal diameter size ounting method : ascade mounting irectional control valve with monitoring switch ( connector type) ote) See page - for an explanation of the shockless type (option symbol ) and surgeless type (option symbol ). -9

286 nstallation imension rawings imensions of installation surface of gasket are S SW--**-**-**- onnector for solenoid (wiring holes can be configured for directions) onnector for switch (wiring holes can be configured for directions) R UU. ' WR SUY. Solenoid Valve S b Solenoid coil S.b onitoring switch φ.. oil can rotate anual push-button 9.(.) 9(). SW--**-**-**- onnector for solenoid (wiring holes can be configured for directions) onnector for switch ote ) (wiring holes can be configured for directions) ut R UU. ' WR SUY. ut S b Solenoid coil S.a onitoring switch S.b onitoring switch S a Solenoid coil Space required for coil removal.(.).(.) () () ote). imensions in parentheses apply in the case of an solenoid.. or option symbol (with cap to prevent manual operation), the nut for fixing coil is mm long. nclude this length when calculating the total length of the valve.. he connector for the switch in the drawing above is the - pin connector. n addition there are wire connections also. See page - for more detailed information.. he wiring hole for the connector is oriented as shown in the diagram for packaging purposes. he orientation can be changed according to the direction of the wiring.. Use surgeless directional control valves with monitoring switches for all electric valves on the same machine to prevent misoperation of the monitoring switch caused by noise when the solenoid turns on and off.. o orient the wiring hole for the connector for the switch towards the solenoid coil, loosen the nut and rotate the solenoid coil so the connector for the switch does not interfere with the connector for the solenoid. -

287 etails about the onnector for the Switch () With wiring (option symbol: none) White Red lack () With - pin connector (option symbol: V).. ote). he pin connector is screwed to the housing so it is rotated a certain amount compared to the drawing. Refer to the electrical circuit diagram below for how to connect it.. he connector that the - pin connector connects to is not provided. (xample of connector with cable provided by customer: mron XS---) Solenoid Valve () lectrical circuit diagram irectional control valve with monitoring switch ustomer's control circuit nternal circuit connector for switch nternal circuit ower supply (+) Red urrent White oad, aximum m lack ower supply (-) oad V (±%) ethod for Wiring to onnector with Switch Wire olor Wiring ethod in umber for - pin onnector onnection Red ower supply (+) White or oad lack ower supply (-) ote). lways install a diode to prevent surges in the current when connecting an inductive load, such as a relay, to the monitoring switch.. o not modify or replace the lead wires.. onnect the load for the - pin connector to either pin number or.. When connecting monitoring switches in sequence, use the negative (-) common mode (type that current runs to sequence side). -

288 erformance urves ydraulic perating luid inematic Viscosity mm /s ressure oss haracteristics peration Symbol X c c X b b b b b b b b a b b b b b b b a a S b b b b S b b b b ressure oss a b a. c.. Solenoid Valve ressure low Volume llowable Value Standard orm, with, solenoid peration Symbol b a b a b a peration Symbol b low rate l/min Shockless ype, with solenoid a b a b a X f f X b f f X c c X a c c a e a c S. d S. c e e a e e S. d S. c e e S a e e b c c a c c b c c S a c c S a c c S a e e a a low rate l /min d b c low rate l /min c b e f ressure a ressure a -

289 Range of otion of Switch Stroke of Spool ositions S.b enter S.a low ath otion of Switch S.b onitoring Switch S.a onitoring Switch ote). low path is type (all-port-block), other flow paths also activate switch in middle position.. and indicate the state of the output transistor on the circuit board in the connector. Switching Responsiveness ressure onitoring switch Solenoid voltage Solenoid Valve Response ime (s) ype of achine odel ressure Switch Solenoid SW---R--. to.. to.. to to. Standard ype SW---R--. to.. to.. to to. uilt-in Rectifier ype SW---. to.. to.. to to. Solenoid Shockless ype SW---R--. to.. to.. to to. uilt-in Rectifier ype Shockless ype SW to.. to.. to to. ote) ay vary depending on switching response time and operating conditions (pressure, flow rate, and oil temperature). [easurement onditions] ressure a low Rate l/min perating fluid S V -

290 ross-sectional rawings SW--**-**-** R UU. ' WR SUY. Solenoid Valve art o. 9 art ame ody lug over (switch) over (one S.) over (connector) Spool Rod (guide) Rod (conductor) ush (insulated) Retainer (fixed contact) Retainer (movable contact) Retainer (main unit) Ring (insulation inside) Ring (insulation outside) Stopper or details about parts marked with an asterisk "*", refer to the list of seals in the table on the right. SW--**-**-**- art o art ame late (connector) ollar (insulated) Spring (one S. guide side) Spring (one S. contact side) Spring (main unit) Spacer ut Solenoid guide Solenoid coil onnector with lead wire acking onnector with built-in photo-coupler onnector packing onnector ameplate art o. 9 art ame Wave washer * * * * * * * * exagon socket head bolt exagon socket head bolt exagon socket head bolt exagon socket head bolt hilips pan head screw exagon nut Seal art ist (it odel umber QS-) art o. art ame art umber Q'ty R-9 S-(R-9) S-9(R-9) R-- R-9 S-.(R-9) S(R--) 9 S-9(R--) ote) he materials and hardness of the conforms with S. 9 R UU. ' WR SUY. art o. 9 art ame ody over (sensor) over (connector) Spool Rod ( guide) Rod (conductor) ush (insulated) Retainer (fixed contact) Retainer (movable contact) Retainer (main unit) Ring (insulation inside) Ring (insulation outside) late (connector) ollar (insulated) Spring (one S. contact side) art o. 9 9 art ame Spring (main unit) Spacer ut Solenoid guide Solenoid coil onnector with lead wire acking onnector with built-in photo-coupler onnector packing onnector ameplate Wave washer * * * art o. art ame or details about parts marked with an asterisk "*", refer to the list of seals in the table on the right. 9 * * * * * exagon socket head bolt exagon socket head bolt exagon socket head bolt hilips pan head screw exagon nut Seal art ist (it odel umber QS-) art o. art ame art umber Q'ty R-9 9 S-(R-9) S-9(R-9) R-- R-9 S-.(R-9) S-(R--) S-9(R--) ote) he materials and hardness of the conforms with S. -

291 Y S VV W R SW SW Series oppet type directional control valve with monitoring switch l/min a eatures his valve is a poppet activated directional control valve that uses mechanical detection to operate a switch to send an electric / signal. his makes it possible, by monitoring the status of the spool operations, to use it as an information source for safety checks by using the / signal as a basis for sequence control. n the future, they will be used in machinery that is compatible with international machine safety (S ) and S standards (S 9) perational rinciple When the needle valve is in the center position, the fixed and moving parts are in contact forming an electric circuit. he solenoid turns on, the needle valve operates so there is no circuit between the fixed and moving parts. standards. he poppet type directional control valve with monitoring switch was developed as a valve to support this demand. qhe switch contact has little dead zone and almost no temperature drift (variable motion caused by changes in temperature) or hysteresis because the reaction of the poppet action is mechanical. wll valve functions, except for the monitoring function, are equivalent to Solenoid eedle Valve S- the standard poppet type directional control valve. e connectors are used for the switches and solenoid coil wiring so connections are easy when installing or replacing valves. oppet Solenoid Valve Specifications Valve Specifications oving contact point ixed contact point peration Symbol -R- -R- S Symbol aximum Working ressure (, ports) a aximum low Rate l/min l/min racking ressure of heck Valve.a Switching requency /minute Weight.kg perating nvironment ust Resistance/Water Resistance Rank S 9 perating luid il-based operating fluid (ote ) mbient emperature Range to perating il emperature Range to perating inematic Viscosity Range to mm /s ounting bolt (ote) iltration Size ength ightening orque μm or less Socket hex head bolt (.9 strength classification or equivalent), each to m ote). Use a petroleum based operating fluid because the / mechanism of the valve's monitoring switch is immersed in oil and the oil must be a nonconducting fluid. Use only petroleum based operating fluid (do not use fluids that are water, glycol, W/ emulsion, phosphate, or fatty ester based). etroleum based operating fluids must also have a water content that is less than.% by volume.. nstallation bolts are provided with valves. -

292 onitoring Switch Specifications Voltage Rating llowable Voltage Range aximum urrent oad ote). See page - for the procedure to wire the connector for the switch.. he programmable controller input circuits are positive (+) common mode and negative (-) common mode. he directional control valve with monitoring switch uses a source circuit [switch on the positive (+) side of the load and power source] for safety purposes. ecause of this, it is necessary to use a negative (-) common mode programmable controller to receive input from the monitoring switch output.. Set the voltage of the power supply to the monitoring switch within a range that satisfies the following conditions. oad voltage + residual voltage < = switch supply voltage < =. V (+% voltage rating). he switch element (photocoupler) in the connector's internal circuit for the monitoring switch may malfunction in the state because of over voltage or over current. herefore, in addition to checking the output of the monitoring switch, monitor the current at the solenoid and the internal circuits of the connector and valve in conjunction with the switch output. V ± % of voltage rating m Residual Voltage (ote ) max..v Wiring for onnector for Switch onnect with wires or - pin connector ondition of monitoring switch output and valve Solenoid Valve onitoring Switch utput he monitoring switch outputs according to the motion of the spool, so the solenoid turns on and off according to the output signal which is delayed only as much as the spool operation is delayed. Set a. second delay, including leeway, to monitor the output of the switch. Solenoid Specifications Same specifications as the S- series ( design). Solenoid ype with uilt-in Rectifier ower Supply ype Voltage (V) bnormal alfunction at internal circuit of connector or valve ormal eedle valve is switching requency (z) Solenoid oil ype urrent to Solenoid ormal eedle valve returns to middle position ressure from port (losed) ressure from port (lows from port) rive urrent () olding urrent () bnormal Valve malfunction or signal wire is cut ormal oppet opens and needle valve operates olding ower (W) llowable Voltage Range (V) / to. / --. to / --. to. / --. to --.. to to. andling zo not allow abnormal surges greater than the maximum operating pressure to occur because pressure from the port is used for the solenoid. xlways keep the operating fluid clean. llowable contamination is class S or less. cuse a S petroleum-based operating fluid, or an equivalent, that has a water content that is less than.% by volume. vo not use fire-resistant operating fluid. buse this valve only within the allowable voltage range. nhe only way to prevent misoperation of the monitoring switch caused by noise generated by the solenoid turning on and off is to install the surgeless directional control valve with monitoring switch (option symbol: R). (f the solenoid power source is * and *) muse surgeless specification (with varistor diode) directional control valves with monitoring switches for all electric valves on the same machine to prevent misoperation of the monitoring switch caused by noise when the solenoid turns on and off.,he coil surface temperature increases if this valve is kept continuously energized. nstall the valve so there is no chance of it being touched directly by hand. odel o. ipe iameter S-- / aximum Working ressure a{kgf/cm }.he connector for the solenoid is the same as for the S series solenoid valve. See page -9 for electrical circuit drawings and wiring procedures. Use the following table for specification when a sub plate is required. Recommended low Rate (l/min) S-X- / {} S--- / S-X-- / Weight (kg) imension rawings age

293 R UU. ' WR SUY. xplanation of model o. SW R R V esign number Solenoid power supply : V : V : V /z : /V /z : V /z : /V /z ominal diameter size peration Symbol R R Wiring for connector for switch one: With mm wire V : With - pin connector (xample of connector with cable provided by customer: mron XS---) ption symbols one: o options (available with power supply *) R : Surgeless type, with indicator light (must be installed with power supply *) R : With indicator light (available with power supply *) ossible option symbol combinations ower Supply ption Symbols * R * one, R ote) he only way to prevent misoperation of the monitoring switch caused by noise generated by the solenoid turning on and off is to install the surgeless directional control valve with monitoring switch. (ower supply is the standard surgeless type, option symbol is not needed.) When S. is does not flow from. When S. is flows both from and Solenoid Valve ounting method : ascade mounting oppet type directional control valve with monitoring switch nstallation imension rawings imensions of installation surface of gasket are S owever, used only for port and.. onnector for switch ote ) (wiring holes can be configured for directions) onnector for solenoid (wiring holes can be configured for directions).. ut. Solenoid coil 9. oil can rotate φ. ote). he connector for the switch in the drawing above is the - pin connector. n addition there are wire connections also. See page - for more detailed information.. Use surgeless directional control valves with monitoring switches for all electric valves on the same machine to prevent misoperation of the monitoring switch caused by noise when the solenoid turns on and off.. o orient the wiring hole for the connector for the switch towards the solenoid coil, loosen the nut and rotate the solenoid coil so the connector for the switch does not interfere with the connector for the solenoid. -

294 etails about the onnector for the Switch () With wiring (option symbol: none) White Red lack () With - pin connector (option symbol: V).. Solenoid Valve ote). he pin connector is screwed to the housing so it is rotated a certain amount compared to the drawing. Refer to the electrical circuit diagram below for how to connect it.. he connector that the - pin connector connects to is not provided. (xample of connector with cable provided by customer: mron XS---) () lectrical circuit diagram ethod for Wiring to onnector with Switch ote). lways install a diode to prevent surges in the current when connecting an inductive load, such as a relay, to the monitoring switch.. o not modify or replace the lead wires.. onnect the load for the - pin connector to either pin number or.. When connecting monitoring switches in sequence, use the negative (-) common mode (type that current runs to sequence side). erformance urves ydraulic perating luid inematic Viscosity mm /s ressure oss haracteristics peration Symbol R R irectional control valve with monitoring switch S Symbol S nternal circuit connector for switch nternal circuit ower supply (+) Red urrent White oad, aximum m lack ower supply (-) S c a c a b ustomer's control circuit ressure oss a oad V (±%) Wire olor Wiring ethod in umber for - pin onnector onnection Red ower supply (+) White or oad lack ower supply (-) c b a.. - low rate l/min

295 Range of otion of Switch Stroke of oppet ositions S. Switching ransition enter low ath otion of Switch ote). nternal leak exists at of switching transition period.. and indicate the state of the output transistor on the circuit board in the connector. Switching Responsiveness ressure ype of achine onitoring switch Solenoid voltage odel ressure Response ime (s) [easurement onditions] ressure a low Rate l/min perating fluid S V Switch Solenoid SW--R-R--. to.. to.. to to. Solenoid with uilt-in Rectifier SW--R--. to.. to.. to to. Solenoid Valve ote) ay vary depending on switching response time and operating conditions (pressure, flow rate, and oil temperature). ross-sectional rawing R UU. ' WR SUY art o. 9 art ame ody over (connector) eedle Valve oppet Sleeve Rod (conductor) ush (needle valve support) ush (insulated) Retainer (fixed contact) Retainer (movable contact) Retainer (flange side) Ring (insulation inside) Ring (insulation outside) Ring (fixed by sleeve) late (connector) art o. 9 9 art ame Spacer (sealing prevention) ollar (insulated) Spring (contact side) Spring (guide side) Solenoid plunger Solenoid guide Solenoid coil ut onnector with lead wire acking onnector with built-in photo-coupler onnector packing onnector arallel pin ameplate art o. art ame ote). or details about parts marked with an asterisk "*", refer to the list of seals in the table on the right.. roducts marked with a use only SW--R-**-**- and do not use SW-R-**-**-. 9 Wave washer Spacer (ring rotation prevention) * * * * * * * * exagon socket head bolt exagon socket head bolt exagon nut Steel ball Set screw Seal art ist (it odel umber QS-S) art o. art ame art umber Q'ty R-9 S-(R-9) R-9 S-9(R-9) R-- S-(R--) 9 S-.(R-9) S-9(R--) ote) R are S Standard, while S is S standard. -9

296 S Y R VV Relief Valve to l/min a eatures qalanced piston relief valve. wptimum pressure control for hydraulic circuit allows operation as a safety valve. e vent port enables remote control of pressure and use of an unloading circuit. Specifications odel o. ominal aximum Working aximum ressure adjustment range Weight kg iameter ressure low Rate Screw ounting asket ounting (Size) a{kgf/cm } l/min a{kgf/cm } ype ype R--- - R--- - R--- - R--- - R--- - R--- - R--- - R--- - / / {}, X (Vent orts) / v When using a relief valve as a safety valve, use a pressure override that is higher than the required circuit pressure. b When using a remote control valve, connect piping to the relief valve port. ipe capacity can be a source of vibration. Use of thick iron pipe with an inside diameter of no more than mm and a connection length of no more than three meters is recommended. n ressure becomes unstable when at slow control flow rates. Use a flow rate of no less than l/min for the, sizes, and l/min for the size. Use a drain type relief valve in the case of a flow rate that is less than the minimum flow rate. ¼ ote) See the low Rate - ow ressure characteristics for information about items marked with an asterisk (*). andling z o adjust pressure, loosen the lock nut and then rotate the handle clockwise (rightward) to increase pressure or counterclockwise (leftward) to decrease it. x ake sure that tank port back pressure is no greater than.a {.kgf/cm }. or tank piping of the and type pressure adjusting ranges, return directly to the tank without connecting any other piping and eliminate back pressure. c he pressure adjustment range for the high vent type is.a {.kgf/ cm }. ote that R-/ is not a high vent type. xplanation of model o. * to {* to.} * to. {* to.} * to {* to.}. to {. to } * to {* to.}. to {. to } * to {* to.}. to {. to } m Use the following table for specification when a sub plate is required. odel o. ipe pplicable ump Weight kg iameter odel R-- /. R--*- R-- / R-X-. R--*- R-- ¼ R-X- ½. R--*-, he following are the bundled mounting bolts. odel o. olt imensions R--*- l R--*- l R--*- l ightening orque Q'ty m{kgf cm} to { to } 9 to {9 to } to { to 9} ote) or mounting bolts, use bolts of.9 strength classification or equivalent. ressure ontrol Valve R () esign number uxiliary symbol : igh vent (excluding size) ressure adjustment range,,, ominal diameter (size) ounting method : Screw ounting : asket ounting Relief valve -

297 nstallation imension rawings R--*- (Screw ounting) X... ressure adjusting handle (hangeable to three other directions) Vent connection port Rc / R--*- (asket ounting) X.. ressure adjusting handle (hangeable to two other directions) Vent connection port Rc / ressure ontrol Valve φ. φ ressure gauge attachment port Rc / ressure gauge attachment port Rc / φ 9 9 X - φ R-**-*- (Screw ounting) - Rc / R-**-*- (asket ounting). rom back - φ.x. counterbore φ holes X.. X.. φ ressure adjusting handle (hangeable to three other directions) Vent connection port Rc / φ ressure adjusting handle (hangeable to two other directions) rom back - φ x counterbore φ holes - Rc ressure gauge attachment port Rc / ressure gauge attachment port Rc / φ X odel o. R--* / R--* ¼ odel o. R--* R--*-... -

298 Sub late R-- R-**- 9 X Rc / (back) φ hole - φ.x. counterbore φ holes - holes - Rc / (back) φ. holes XX. X Rc / (back) φ hole - RR. WW φ x - φ x counterbore φ holes φ x QQ YY - φ UU - Rc VV (back) SS odel o. imensions (mm) QQ RR SS UU VV WW XX YY R-- / R-X- 9.. R-- ¼ R-X- ½. erformance urves ydraulic perating luid inematic Viscosity mm /s ressure - low Rate haracteristics R-*-*- R-*-*- R-*-*- ressure a{kgf/cm } 9 low rate l/min {} {} {9} {.} {.} {.} ressure a{kgf/cm } 9 low rate l/min {} {} {9} {.} {.} {.} ressure a{kgf/cm } 9 low rate l/min {} {9} {} {.} {.} {.} ressure ontrol Valve low Rate - inimum ressure haracteristics R-*- - R-*- - R-*-- ressure a{kgf/cm } {.} {.} {.} {.} {.} {.} inimum pressure a{kgf/cm }.... {.} {.} {.} {.} inimum pressure a{kgf/cm }.... {.} {.} {.} {.} low rate l/min low rate l/min R-*-- R-*-- low rate l/min inimum pressure a{kgf/cm }.... {.} {.} {.} {.} inimum pressure a{kgf/cm }.... {.} {.} {.} {.} low rate l/min low rate l/min ote) he performance curves do not include port back pressure. -

299 ross-sectional rawings R ressure ontrol Valve R-- - R X art o. 9 9 art ame ody over Spool oppet Seat Seat lunger Retainer ollar Spring Spring Spring andle ut Spring pin Screw lug lug ameplate ote) he o. spring is not included when auxiliary symbol is selected (except with the size). X 9 Seal art ist it odel umber RRS-*** ( size) RRS-*** (, size) art o. ( ) art ame ype/art umber R--*- R--*- R--*- R--*- R--*- R--*- R-9 R-9 R-9 R-9 R-9 R-9 R-- R-- R-- R-- R-- R-- R-9 R-9 9 R R-9 R-9 R-9 ote) he materials and hardness of the conforms with S. *** in the kit number is used for specification of the valve size (,, etc.) Q'ty -

300 S Y R VV (W S Y) R Series Relief Valve (S ounting, alanced iston ype) to l/min a eatures qigh pressure capacity balanced piston relief valve. wptimum pressure control for hydraulic circuit allows operation as a safety valve. e vent port enables remote control of pressure and use of an unloading circuit. rs standard mounting service (see table below). Specifications odel o. ominal iameter asket ounting (Size) R--- / R--- R--- andling z o adjust pressure, loosen the lock nut and then rotate the handle clockwise (rightward) to increase pressure or counterclockwise (leftward) to decrease it. x ake sure that tank port back pressure is no greater than.a {.kgf/cm }. c or use as a safety valve, use a pressure override that is higher than the required circuit pressure. v When using a remote control valve, connect piping to the relief valve port. ipe capacity can cause vibration. Use of thick iron pipe with an inside diameter of no more than mm and a connection length of no more than three meters is recommended. aximum Working ressure a{kgf/cm } aximum low Rate l/min / {}, X orts / ressure adjustment range a{kgf/cm } Weight kg. to. {. to.}.. to {. to.}. to {. to }. to {. to }. to {. to.}. to {. to }. to {. to } b he following are the bundled mounting bolts. odel o. olt imensions R--*- l R--*- l ightening orque Q'ty m{kgf cm} to 9 { to 9} 9 to {9 to } ote) or mounting bolts, use bolts of.9 strength classification or equivalent. n small control flow rate can cause pressure instability. Use a control flow rate that is at least l/min. Use a drain type relief valve in the case of a flow rate that is less than the minimum flow rate.. asket Surface imensions S S m Use the following table for specification when a sub plate is required. odel o. ipe Weight pplicable ump iameter kg odel R-- / R-X- /. R- R-- / R-X-. R- ressure ontrol Valve xplanation of model o. R esign number ressure adjustment range,,, ominal diameter (size) ounting method : asket type R series relief valve -

301 nstallation imension rawings R-**-*- - φ ax counterbore φ b holes X. X. X odel o. a b R--* R--* φ ressure ontrol Valve Sub late R-*- (aximum perating ressure: a) φ x φ Rc / (back) -x φ Sub late R-*- (aximum perating ressure: a) φ x φ Rc / (back) - holes 9. X... Y.. Y X φ - φ -φ. - φ - Rc (back) φ - Rc (back) -φ ttach a plug when the vent (X) port is not used. odel o. R-- / R-X- / R-- / R-X- odel o. Y Y R R-X-.. -

302 erformance urves ydraulic perating luid inematic Viscosity mm /s ressure - low Rate haracteristics R---. {.} R--*- ote) he performance curves do not include port back pressure. ressure a{kgf/cm } ressure a{kgf/cm } ross-sectional rawing R-**-* {.}. {.}. {.} low rate l/min {.} low rate l/min X {} {} {} {} {} {} {} {} {} {.} {.} 9 R--*- {} {} {} {} {} {} {} {.} {.} {.} low rate l/min ressure a{kgf/cm } art o. art ame ody over oppet Sleeve Spring Spacer oppet Seat 9 lunger Retainer lug ollar Spring andle assy rifice rifice art o. art ame late lug 9 lug Screw in 9 ackup ring ackup ring Screw hoke Seal art ist (it odel umber RS-***) ressure ontrol Valve art o. art ame ominal iameter/art umber Q'ty R-9 R-9 R-9 9 R-9 9 R-9 R-9 R-- R-- R-9 R-9 R-9 R-9 R-9 R-9 9 ackup ring - - ackup ring - - ote) he materials and hardness of the conforms with S. or the *** part of the kit number, specify the valve size (, ). -

303 R R RSSUR R VV Remote ontrol Relief Valve eatures to l/min a (V) (R) qonnecting a relief valve or reducing valve to the vent port of a balanced piston type pressure control valve provides simple remote control of pressure. wr type can also be used as a direct type relief valve. ressure ontrol Valve Specifications odel o. xplanation of model o. R () esign number djusting bolt type (gasket type only) ressure adjustment range, ominal diameter (size) ounting method : Screw ounting : asket ounting Remote control relief valve nstallation imension rawings R--*- (Screw ounting) ominal iameter (Size) aximum Working ressure a{kgf/cm } Screw ounting asket mounting R--- - {} / R--- R---, V ports - - ote) he pressure adjustment range indicates cracking pressure. 9 φ φ φ port Rc / aximum low Rate l/min ressure adjustment range a{kgf/cm }. to {. to.}. to {. to }. to {. to.}. to {. to } φ φ Weight kg.. andling z o adjust pressure, loosen the lock nut and then rotate the handle clockwise (rightward) to increase pressure or counterclockwise (leftward) to decrease it. x ake sure that drain port back pressure is no greater than.a {.kgf/cm }. c When configuring pipes for the pressure control valve and remote control valve, use of thick iron pipe with an inside diameter of no more than mm and a connection length of no more than three meters is recommended. ipe capacity can be a source of vibration. v When an adjustment bolt type is required for the pressure adjustment block, insert for the type specification. See the dimension drawings, R- only. b Use the following to specify a sub plate. odel o. Weight kg R--. n he following are the bundled mounting bolts. olt ightening orque odel o. Q'ty imensions m{kgf cm} to R--*- l { to } ote) or mounting bolts, use bolts of.9 strength classification or equivalent. port Rc / X. -

304 R--*- (Screw ounting) Rc / Vent connection port Rc / R X φx. counterbore φ. holes (rom back) φ V R φ. φ φ R--*- (asket ounting) Sub late R-- R V -Rc / X. φ - φ x counterbore φ 9 holes X.9. 9 ross-sectional rawings φ 9 - holes R V. - φ.x counterbore φ holes ressure ontrol Valve R--*- 9 art o. 9 art ame ody Sleeve Sleeve oppet Retainer Spring uide ut Screw lug art o. φ art ame ameplate Seal art ist (it odel umber RS-) art o. art ame art umber Q'ty S.(R--) R-- R-9 R-9 ote) he materials and hardness of the conforms with S. R--*-()- 9 Seal art ist (it odel umber RS-) art o. art ame art umber Q ty R-9 R-9 R-- ote) he materials and hardness of the conforms with S. art o. 9 art ame oppet Seat lunger Retainer Spring andle ut over ollar lug late -9

305 Solenoid ontrolled Relief Valve eatures S R R VV to l/min a (wo-pressure ontrol ircuit xample) ressure ontrol Valve qhis valve adds a wet type solenoid valve to a balanced type piston type relief valve to form a hydraulic device unload circuit. whe shockless type has an internal structure that prevents shock generated during unloading. his valve can also be used in a pressure relief circuit, and has a maximum adjustment time of three seconds. See the pressure relief circuit example. Specifications andling z o adjust pressure, loosen the lock nut and then rotate the adjusting bolt clockwise (rightward) to increase pressure or counterclockwise (leftward) to decrease it. x o adjust the time from onload to unload, loosen the lock nut and rotate the restrictor adjusting bolt clockwise (rightward) to make the time longer, or counterclockwise (leftward) to make it shorter. c ake sure that tank port back pressure is no greater than.a {.kgf/cm }. v he ** before the design number in the model number of the solenoid valve used shows voltage. See the voltage symbols in the model number explanation. e two-pressure control circuit can be configured by adding a relief modular valve. ontact your agent for more information. (ressure Relief ircuit xample) odel o. ominal aximum Working aximum ressure adjustment Weight kg iameter ressure low Rate range Screw ounting asket ounting (Size) a{kgf/cm } l/min a{kgf/cm } ype ype RSS (RS) --Q -**- RSS (RS) --Q -**- RSS (RS) --Q -**- RSS (RS) --R -**- RSS (RS) --R -**- RSS (RS) --R -**- Shockless ype RSS (RS) -- --**- RSS (RS) -- --**- RSS (RS) -- --**- RSS (RS) --Q -**- /.. RSS (RS) --Q -**- / ype RSS. to (RS) --Q -**- ¼ {} {. to.} RSS, X orts ype (RS) --R -**- /. to RSS {. to } (RS) --R -**- / RSS (RS) --R -**- ¼.. RSS (RS) -- --**- / RSS {} (RS) --, X orts RSS (RS) -- ressure S Setting pressure. to..s ype to {. to.} ype. to {. to } --**- /.. --**- ¼ 9.. b ressure becomes unstable when at slow control flow rates. Use a flow rate of no less than l/min for the, sizes, and l/min for the size. n Use 9 to % of rated voltage. m he pressure adjustment range for the high vent type is.a {.kgf/ cm }. ote that RSS (RS) -/ is not a high vent type., Use the following table for specification when a sub plate is required. S Symbol.. ote) or information about electrical specifications, see the SS type and S type solenoid valve items on pages - and -. Shock noise generated. ime S.S S X S ipe Weight odel o. pplicable Valve ype iameter kg RSS R-- /. (RS) --***-**- R-- / RSS. R-X- (RS) --***-**- R-- ¼ RSS. R-X- ½ (RS) --***-**- ote) See page relief valve page item on - for dimensions. Shock noise canceled. Shock noise can be canceled in about. second. ressure Used Solenoid Valve odel umber SS (S) --X-**- SS (S) --R-**- SS (S) --X-**-. he following are the bundled mounting bolts. odel o. S b igh pressure Unload olt Q' imensions ty ightening orque m{kgf cm} RSS (RS) --***-**- l to { to } RSS (RS) --***-**- l 9 to {9 to } RSS (RS) --***-**- l to { to 9} ote) or mounting bolts, use bolts of.9 strength classification or equivalent. he coil surface temperature increases if this pump is kept continuously energized. nstall the valve so there is not chance of it being touched directly by hand. a b S ime ressure characteristics a ow pressure -

306 xplanation of model o. RSS(RS) Q () esign number Voltage symbol : V /z : V /z : V : V : V /z : V /z uxiliary symbol : igh vent (excluding size) : With shock canceller (See shockless type item.) ressure adjustment range, ther auxiliary symbols can be used (enter them in alphabetic order if there are or more). With SS type solenoid valve,, Q (R is omitted). With S type solenoid valve R,,, Q, R ominal diameter (size) ounting method Stop position flow path Q: pen R: locked peration method Solenoid controlled relief valve (with S type solenoid valve) Solenoid controlled relief valve (with SS type solenoid valve) nstallation imension rawings RSS -**-**-**-, (RS) ote) imensions marked with are for the RS type. ote) imensions in parentheses apply in the case of a solenoid valve. φ to φ ead wire outlet port : Spring offset : Screw ounting : asket ounting / lead wire outlet port ot required with the shockless type. ressure ontrol Valve. anual operation pin Q ressure adjusting bolt X. ressure adjusting bolt X. - Rc ressure gauge attachment port Rc / RSS (RS) --**-**- RSS (RS) - -**-**- odel o. Q RSS (RS) ---**-** ().. /. RSS (RS) ---**-** (.) 9. /. RSS (RS) ---**-** (.). 9 ¼ -

307 RSS -**-**-**-, (RS) ote) imensions marked with are for the RS type. ote) imensions in parentheses apply in the case of a solenoid valve. φ to φ ead wire outlet port / lead wire outlet port. anual operation pin ressure adjusting bolt X. ressure ontrol Valve φ to φ ead wire outlet port / lead wire outlet port anual operation pin R ressure gauge attachment port Rc/ rom back - φ xq counterbore φ d holes odel o. Q d RSS (RS) --**-** (.) RSS (RS) --**-**-... RSS (RS) --**-**-.. ote) or gasket surface dimensions, see R-**-* /.. RSS -**-*--**-, (RS). (.) (9).. ote) imensions marked with are for the RS type. ote) imensions in parentheses apply in the case of a solenoid valve. ressure adjusting bolt X. - Rc odel o. Q R RSS (RS) --*--** /. () RSS (RS) --*--** RSS (RS) --*--** (.). (.) 9. /.. 9. ¼ ressure gauge attachment port Rc / -

308 RSS -**-*--**-, (RS) ote) imensions marked with are for the RS type. ote) imensions in parentheses apply in the case of a solenoid valve. φ to φ ead wire outlet port / lead wire outlet port. anual operation pin ressure adjusting bolt ressure gauge attachment port Rc / X. rom back - φ xq counterbore φ d holes odel o. Q d RSS (RS) --*--** (.) RSS (RS) --*--**-.... (.) RSS (RS) --*--**-.. (9) ote) or gasket surface dimensions, see R-**-* /. ross-sectional rawing RSS-**-*--**-, ressure ontrol Valve 9 X 9 9 art o. 9 9 art ame ody over Spool Seat Spring Screw ut Retainer lunger Spring oppet Seat ollar ameplate ody Spool hrottle Retainer Spring guide art o. 9 art ame Spring ut Screw lug lug lug ut Spring pin Spring pin Solenoid Valves Screw -

309 Seal arts ist (it odel umber RSS-***) art ype/art umber art ame Q'ty o. RSS--*--**- RSS--*--**- RSS--*--**- 9 R-9 R-9 R-9 R-- R-- R-- R-9 R-9 R-9 R-9 R-9 9 R-9 9 R-9 R-9 R-9 R-9 9 R-9 9 R-9 9 R-9. R-9. R-9. ote). he materials and hardness of the conforms with S.. or the *** part of the kit number, specify the valve size (,, ).. SS (S)- pilot valve seal is available separately. or details, see pages -(-). ressure ontrol Valve -

310 S R R VV (W S Y) R Series Solenoid ontrolled Relief Valve to l/min a eatures q his valve adds a wet type solenoid valve to a balanced type piston type relief valve to form a hydraulic device unload circuit. whe shockless type has an internal structure that prevents shock generated during unloading. his valve can also be used in a pressure relief circuit, and has a maximum adjustment time of three seconds. See the pressure relief circuit example. (ressure Relief ircuit xample) S Setting pressure S (wo-pressure ontrol ircuit xample) S b a b Specifications odel o. ominal aximum aximum Working ressure adjustment asket Surface iameter low Rate ressure range Weight kg asket ounting (Size) l/min a{kgf/cm } a{kgf/cm } imensions RS--Q -**- /. S ype. to RS--Q -**- / {. to.} {} ype. to. S ----9, X orts {. to } RS--R -**- / ype. to. S {. to } RS--R -**- /. S e two-pressure control circuit can be configured by adding a relief modular valve. ontact your agent for more information. Shockless ype ype to RS-- --**- / {. to.} {} ype. to. S , X orts {. to } RS-- --**- / ype. to. S {. to } ote) or electrical specifications, see the SS type solenoid valve item on page -. ressure. to..s Shock noise generated. ime.s S X S Shock noise canceled. Shock noise can be canceled in about. second. S Symbol ressure igh pressure Unload S a ow pressure ime ressure characteristics Used Solenoid Valve odel umber SS--X-**- SS--R-**- SS--X-**- ressure ontrol Valve andling z o adjust pressure, loosen the lock nut and then rotate the handle clockwise (rightward) to increase pressure or counterclockwise (leftward) to decrease it. x o adjust the time from onload to unload, loosen the lock nut and rotate the restrictor adjusting bolt clockwise (rightward) to make the time longer, or counterclockwise (leftward) to make it shorter. c ake sure that tank port back pressure is no greater than.a {.kgf/cm }. v he ** before the design number in the model number of the solenoid valve used shows voltage. See the voltage symbols in the model number explanation. b small control flow rate can cause pressure instability. Use a control flow rate that is at least l/min. Use a drain type relief valve in the case of a flow rate that is less than the minimum flow rate. n Use 9 to % of rated voltage. m Use the following table for specification when a sub plate is required. aximum operating pressure is a {kgf cm }. odel o. R-- / R-X- / R-- / R-X- ipe Weight kg iameter pplicable ump odel. RS-. RS-, he following are the bundled mounting bolts. odel o. olt imensions RS--***-**- l RS--***-**- l ightening orque Q'ty m{kgf cm} to 9 { to 99} 9 to {9 to } ote) or mounting bolts, use bolts of.9 strength classification or equivalent.. he coil surface temperature increases if this pump is kept continuously energized. nstall the valve so there is not chance of it being touched directly by hand. -

311 ressure ontrol Valve xplanation of model o. RS Q () esign number Voltage symbol : V /z : V : V /z : V : V /z : V /z ressure adjustment range,, Stop position flow path Q: pen R: locked peration method ominal diameter (size) ounting method uxiliary symbol : Spring offset : asket type R Series solenoid controlled relief valve (with SS type solenoid valve) nstallation imension rawings RS-**-**-**- - φ ax counterbore φ b holes : With shock canceller (See shockless type item.) ot required with the shockless type. ther auxiliary symbols,, and Q (R is omitted) can be used (enter them in alphabetic order if there are or more). RS-**-*--**-.... φ φ odel o. a b RS--***-**- ()... RS--***-**- (9) 9.. ote). or gasket surface dimensions, see R-**-* on page -.. igures in (parenthesis) are for the solenoid valve. -

312 ross-sectional rawing art o. 9 art ame ody over oppet Sleeve Spring Spacer oppet Seat lunger Retainer lug ollar Spring andle assy rifice rifice late 9 9 X art o. 9 9 art ame lug lug Screw in ackup ring ackup ring Screw hoke ut ody ressure ontrol Valve Seal art ist (it odel umbers: ain RS-***, Restrictor Valve S-) omponent ominal iameter/art umber art o. art ame arts Q'ty R-9 R-9 R-9 9 R-9 9 R-9 R-9 R-- R-- ain R-9 R-9 R-9 R-9 R-9 R-9 9 ackup ring - - ackup ring - - R-9 R-9 9 Restrictor R-9 Valve 9 R-9. ackup ring - ote). he materials and hardness of the conforms with S.. or the *** part of the kit number, specify the valve size (, ).. he restrictor valve kit is required only when a shockless valve is included.. SS (S)- pilot valve seal is available separately. or details, see pages - (-). art o. 9 9 art ame Spool hrottle Sleeve Retainer uide Spring ut late ut lug in ackup ring Solenoid Valves Screw -

313 ressure Reducing (and heck) Valve eatures RSSUR RU ( ) VV to l/min a -***-*- R U -***-*- Specifications qhis valve is used when part of the circuit uses pressure that is lower than the main circuit. wven when pressure changes in the primary main circuit, the reduced secondary pressure is adjusted automatically and maintained at a constant level. eonnecting a remote control valve to the vent port allows remote control of adjustment pressure. rhe mounting surface of the gasket conforms to the S standards shown in the table below. U R ressure ontrol Valve odel o. ominal aximum Working aximum ressure adjustment range Weight kg iameter ressure low Rate Screw ounting asket ounting (Size) a{kgf/cm } l/min a{kgf/cm } ype ype () () () () () () () () Weight values in parentheses are for when a check valve is included. he cracking pressure of the check valve is.a{.kgf/cm } () Reducing valve esign number ressure adjustment ranges,,, ominal diameter (size) ounting method : Screw ounting : asket ounting Reducing and check valve nstallation imension rawings / xplanation of model o. -**-*- (Screw ounting) imensions (mm) odel o. --* *-. --*-... imensions (mm) odel o. --*- / --*-. 9 / --* ¼ φ X.. - Rc Vent connection port Rc / - / {}, U, / Vent ort ¼ U. to {. to.}. to. {. to.}. to {. to.}. to {. to }. to {. to.}. to {. to }. to {. to.}. to {. to } ressure adjusting handle (hangeable to two other directions) rain port Rc / ressure gauge attachment port Rc / (rimary pressure) ressure gauge attachment port Rc / (Secondary pressure). (.). (.). (.). (.) andling z rovide an independent drain pipe directly to the tank. x When using a remote control valve, connect piping to the reducing valve vent port. ipe capacity can be a source of vibration. Use of thick iron pipe with an inside diameter of no more than mm and a connection length of no more than three meters is recommended. c Use the following table for specification when a sub plate is required. odel o. -- / -X- /. () --*- -- / -X-.9 () --*- -- ¼ -X- ½. () --*- hese sub plates can also be used for pressure control valves. v he following are the bundled mounting bolts. odel o..9 (.).9 (.). (.). (.) ipe Weight iameter kg olt imensions () --*- l () --*- l () --*- l asket Surface imensions S ---- S ---- S ---- pplicable ump odel Q'ty ightening orque m{kgf cm} to { to } ote) or mounting bolts, use bolts of.9 strength classification or equivalent. - ote) fter the orientation of the pressure adjusting handle has been changed, also modify the cover alignment surface (R-9 ).

314 -**-*- (asket ounting) ressure adjusting handle X.. Vent connection port Rc / rom back - φ.x counterbore φ holes ressure gauge attachment port Rc / (rimary pressure) ressure gauge attachment port Rc / (Secondary pressure) -**-*- (Screw ounting) U φ φ odel o. --* *-. --* ote) he orientation of the pressure adjusting handle cannot be change. ressure adjusting handle (hangeable to one other direction) rain port ressure ontrol Valve X.. Vent connection port Rc / - Rc rain port Rc / φ ressure gauge attachment port Rc / (rimary pressure) U ressure gauge attachment port Rc / (Secondary pressure) - odel o. --*-.. 9 / --*-.. 9 / --* ¼ ote) fter the orientation of the pressure adjusting handle has been changed, also modify the cover alignment surface (R-9 ). -9

315 -**-*- (asket ounting) ressure adjusting handle X.. Vent connection port Rc / rom back - φ.x counterbore φ holes φ ressure ontrol Valve ressure gauge attachment port Rc / (rimary pressure) ressure gauge attachment port Rc / (Secondary pressure) Sub late -***- φ U imensions (mm) rain port odel o. --* *-. --* ote) he orientation of the pressure adjusting handle cannot be change. R QQ - φ.x counterbore φ holes U φ depth - φ VV RR SS iping and plug not required UU- tap - φ XX WW - Rc YY - Rc / imensions (mm) odel o. QQ RR SS UU VV WW XX YY -- / X- / -- / X- -- ¼ X- ½ -

316 erformance urves ydraulic perating luid inematic Viscosity mm /s ressure oss haracteristics () --*- () --*- ressure rain low Rate haracteristics () -***-*- ressure oss a{kgf/cm } ath U. ath U. (main valve open). ath U (main valve closed).... {.} {.} {.} {.} {.} {.} {.} ressure oss a {kgf/cm } ath U ath U (main valve open) ath U (main valve closed) {.} {.} {.} {.} {.} {.} {.} cm /min rain flow rate ()-*-*- ()-*-*- ()-*-*- ()-*- -. {.}. {.} low rate l /min low rate l /min (, ype) {} {} {} {}..... (, ype) {.} {.} {.} {.} {.} ifferential pressure (a) {kgf/cm } ressure oss a {kgf/cm } () --*- ath U. ath U (main valve open). ath U (main valve closed)..... {.}. low rate l /min {.} {.} {.} {.} {.} {.} {.} ressure oss a{kgf/cm } Secondary ressure low Rate haracteristics () --*- () -*- - ath U. ath U (main valve open). ath U (main valve closed) low rate l /min {.} {.} {.} {.} {.} {.} {.} {.} a {kgf/cm } ressure.... {.} {.} {.}. {.}. low rate l /min {.} {.} ressure ontrol Valve () --*- () --*- ressure oss a{kgf/cm } ath U. ath U (main valve open). ath U (main valve closed) {.} {.} {.} {.} {.} {.} {.} {.} ressure oss a{kgf/cm } ath U. ath U (main valve open). ath U (main valve closed) {.} {.} {.} {.} {.} {.} {.} {.} low rate l /min low rate l /min -

317 ross-sectional rawings () -**- - 9 ressure ontrol Valve --**-*- U 9 9 art o. art ame ody over over iston Spring andle ut Retainer 9 Spring pin ush rod Spring oppet Seat ollar oppet Spring Spring guide Screw 9 lug lug ameplate ote) art numbers,,, and are not required when there is no check valve. Seal art ist (it odel umber RS-***()) art o. art ame ype/art umber --*- --*- --*- --*- --*- --*- Q'ty R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-- R-- R-- R-- R-- R-- R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 ote) he materials and hardness of the conforms with S. *** in the kit number is used for specification of the valve size (,, etc.) o specify inclusion of a check valve, add to the end. -

318 VV (RSSUR RU R VV) alancing Valve (ressure Reducing and Relief Valve) to l/min a R () odel o. R--- R---()- R--*- eatures q -in- operation allows a simpler circuit configuration. ombination valve that provides both pressure reducing and counter balance functions. Specifications R--*-- ominal iameter (Size) aximum Working ressure a{kgf/cm } / {} / port xplanation of model o. R wressure adjustment using a single screw (bolt). e ompact and lightweight valve that can be mounted using the same methods as a, size solenoid valve. aximum ressure adjustment range Weight low Rate a{kgf/cm l/min } kg. to {. to.}. to {. to }. to {. to.}. to {. to } asket Surface imensions. S S ---- esign number ote: or size, relationship between mounting bolts and design number is indicated as :, :. uxiliary symbol : xternal drain ( size only) : With handle ressure adjustment range, ontrol port: port ominal diameter (size) ounting method : asket type alancing valve nstallation imension rawings Rc / ressure gauge attachment port φ 9.x counterbore φ. holes..... djusting stroke X.() X.() andling z o adjust pressure, loosen the lock nut and then rotate the adjusting screw (bolt) clockwise (rightward) to increase pressure or counterclockwise (leftward) to decrease it. x or the size, draining is from the gasket side port. c or the drain of a size valve when auxiliary symbol is specified, run a pipe from the drain discharge port directly to the tank. he drain discharge port can also be plugged for direct draining from the gasket side port. n the case of modification, be sure to change the valve type marking on the nameplate. When using drain piping, use a tightening torque of to m { to kgf cm} for pipe joints. v he drain of size valve that does not have a auxiliary symbol can be directly from the port. b ake sure that drain back pressure is no greater than.a {.kgf/cm }. n When an adjustment handle is required for pressure adjustment block, insert for the type specification. m Set the difference between the pressure at the primary circuit (port ) and the secondary circuit (port ) at least.a { kgf/cm }., Use the following table for specification when a sub plate is required. odel o. odel o. ipe utlet Size R--*- R--*- R--*- Weight kg S-Y- /. S-- / S-X- /.. he following are the bundled mounting bolts. olt ightening orque Q'ty imensions m{kgf cm} djusting andle (ption) to { to } to { to } to { to } ote) or mounting bolts, use bolts of.9 strength classification or equivalent. ressure ontrol Valve X..(9) Rc / rain port djusting stroke. ock nut djusting handle.. 9. φ ( φ ) φ ( φ ) Rc / ressure gauge attachment port. S - φ x φ. hole - φ x φ. hole ote). or size, an escape valve with piping from the drain discharge port is standard for the drain (R--*--). o change from internal drain to external drain, install a plug ( /) in part S, and remove the drain discharge port plug (R /). o change from external drain to internal drain, install a plug (R /) into the drain discharge port, and remove the S part plug ( /). n this case, however, the port cannot be used as the tank port.. imensions in parentheses show dimensions with handle ( type). 9() -

319 ressure ontrol Valve ressure low Rate haracteristics 9 ressure a {kgf/cm } erformance urves R--*- ow pressure flow rate l /min () ross-sectional rawings R--*- {} {} {} Relief flow rate l /min () ressure a {kgf/cm } ydraulic perating luid inematic Viscosity mm /s R--*-()- ow pressure flow rate l /min () ote) he materials and hardness of the conforms with S. 9 {} {} Seal art ist (it odel umber RS-) art o. art ame art umber Q'ty R-9 9 R-- R-9. 9 R-9 R-9 {} Relief flow rate l/min () Setting ressure rain low Rate haracteristics cm /min rain flow rate R--*- R--*-()- R--*- R--*-()- q w {} {} {} ifferential pressure a{kgf/cm } (rimary Side ressure - Setting ressure) art o. art ame ody Spool oppet Seat ushing ushing Retainer hoke 9 Spring Spring Screw late ut lug lug 9 lug Spacer hoke R--* Seal art ist (it odel umber RS-) art o. art ame art umber Q'ty R-- R-9 R-9 9 R-9 art o. 9 9 art ame ody over () over () Spool oppet Seat Retainer hoke Spring Spring Screw late ut ut Screw Screw lug lug lug in -

320 ressure ontrol (and heck) Valve RSSUR R ( ) VV to l/min a eatures qhis circuit control valve works as a sequence valve, unloading valve, and counter balance valve. waximum operating pressure is a {kgf/cm }. ehough a direct type valve, there is little pressure override. rhe mounting surface of the gasket conforms to the S standards shown in the table below. Specifications odel o. Screw ounting asket ounting () Q--*- () Q--*- () Q--*- () Q--*- () Q--*- () Q--*- ominal iameter (Size) / aximum Working ressure a{kgf/cm } aximum low Rate l/min {} /, U, orts ¼ ressure adjustment range a{kgf/cm } ype. to. {. to.} ype. to. {. to.9} ype. to. {. to.} ype. to {.9 to.} ype. to {. to } Weight kg ype ype.9 (.). (.). (.). (.) asket Surface imensions S ---- S S ---- (.) (.) Weight values in parentheses are for when a check valve is included. he cracking pressure of the check valve is.a {.kgf/cm }. xample circuit When using type. xplanation of model o. ()Q xample circuit When using type. esign number ressure adjustment range,,,, (ote: ype pressure adjustment is note available for ype.) ype,,, ominal diameter (size) ounting method : Screw ounting : asket ounting ressure control valve ressure control and check valve andling z o adjust pressure, loosen the lock nut and then rotate the adjusting bolt clockwise (rightward) to increase pressure or counterclockwise (leftward) to decrease it. x he pressure adjustment range is expressed in terms of cracking pressure. c Run the out port of Q-/** type and directly to the tank. v he following describes the method for using ypes and. pplication of back pressure to the valve output side such as in the example circuit shown below, use ype or ype and run the drain port directly to the tank. b When two or more of these valves are ganged in sequence, make sure the setting pressure (cracking pressure) differential between them is at least a {.kgf/cm }. n Vibration (chattering) may occur with the () Q-***-- depending on operating conditions when using type and pressure adjustment range. Use external drain type if it happens. m ype is standard. When ype,, or is required, make modifications in accordance with the figures on the next page. odifications change the valve type, so be sure to change the markings on the nameplate., Use the following table for specification when a sub plate is required. odel o. -- / -X- / -- / -X- -- -X- odel o. ipe Weight iameter kg ¼ ½ olt imensions Q'ty () Q--**- () Q--**- () Q--**- pplicable ump odel. () Q--**-.9 () Q--**-. () Q--**- ote) hese sub plates can also be used for reducing valves.. he following are the bundled mounting bolts. ightening orque m{kgf cm} to { to } ote) or mounting bolts, use bolts of.9 strength classification or equivalent. ressure ontrol Valve -

321 Q-***-**- S Symbol ype ype ype ype Q-***-**- ype ype ype ype R R U U U U ype is standard. nstallation imension rawings ype U U R Q-**-*-(Screw ounting) U R U ressure adjusting bolt ressure ontrol Valve ype ype ype R X. U ameplate xternal drain port Rc / odel o. Q () Q--** / () Q--** / () Q--** ¼ Q-**-*- (asket ounting) ressure gauge attachment port Rc / (Secondary pressure) ressure gauge attachment port Rc / (rimary pressure) exagon nut - Rc Q - Remote pilot ttachment port Rc / φ ressure adjusting bolt ype exagon nut U ressure gauge attachment port Rc / (Secondary pressure) xternal drain port - φ.x counterbore φ holes ameplate ype ressure gauge attachment port Rc / (rimary pressure) X. Remote pilot ttachment port odel o. Q--** Q--**-.. Q--**

322 nstallation imension rawings ype Q-**-*- (Screw ounting) ressure adjusting bolt ype xternal drain port Rc / exagon nut R X. U ressure gauge attachment port Rc / (Secondary pressure) - Rc Q ype ype ameplate odel o. Q Q--** / Q--** / Q--** ¼ Q-**-*- (asket ounting) ressure gauge attachment port Rc / (rimary pressure) - Remote pilot ttachment port Rc / ressure ontrol Valve ressure adjusting bolt ype exagon nut U ressure gauge attachment port Rc / (Secondary pressure) X. xternal drain port - φ.x counterbore φ holes ameplate φ ype ressure gauge attachment port Rc / (rimary pressure) Remote pilot ttachment port odel o. Q--** Q--**-.. Q--**

323 ressure ontrol Valve Sub late -***- odel o. QQ RR SS UU VV WW XX YY -- / X- / -- / X- -- ¼ X- ½ erformance urves ressure oss haracteristics ressure oss a{kgf/cm } () Q--**-. low path U {.}. low path U {.}. {.}. {.}. {.}. {.}. {.}. {.} low rate l /min UU- tap xternal drain SS RR XX WW - φ VV φ depth ydraulic perating luid inematic Viscosity mm /s () Q--**- ote) he figure shows size (X), with four tap holes for size (X) and (X) valve mounting bolts. ote) When a valve cover external drain and external pilot port are used, remove the plugs from the sub plate external drain and external pilot port. () Q--**- () Q--**- () Q--**- () Q--**- U QQ - φ hole - φ φ. x counterbore xternal pilot - Rc YY - Rc / ressure oss a{kgf/cm} low path U (pressure adjustment, type). {.} low path U (pressure adjustment,, type). {.} low path U. {.}. {.}. {.}. {.}. {.}. {.} low rate l /min ressure oss a{kgf/cm } low path U (pressure adjustment, type). {.} low path U (pressure adjustment,, type). {.} low path U. {.}. {.}. {.}. {.}. {.}. {.} low rate l /min ressure oss a{kgf/cm } low path U. low path U {.} {.} {.} {.} {.} {.} {.} {.} ressure oss a{kgf/cm } low path U (pressure adjustment, type). low path U (pressure adjustment,, type). low path U {.} {.} {.} {.} {.} {.} {.} {.} ressure oss a{kgf/cm } low path U (pressure adjustment, type). low path U (pressure adjustment,, type). low path U {.} {.} {.} {.} {.} {.} {.} {.} low rate l /min low rate l /min low rate l /min -

324 ressure low Rate haracteristics : ress rise : ressure drop () Q-*-- () Q-*-- () Q-*-- a{kgf/cm } ressure. {.}. {.}. {.}.9 { 9.} ressure a {kgf/cm }. {.}. {.}. {.}.9 {9.}. {.} ressure a {kgf/cm }. {.}. {.9}. {.}. {.}. {.}. {.}. {.} low rate l /min low rate l /min low rate l /min () Q-*-- () Q-*-- ressure a{kgf/cm } {} 9 {9.} {.} {.} {.} low rate l /min () Q-*-- ressure a{kgf/cm } {} {} {} {} {} {} low rate l /min () Q-*-- () Q-*-- ressure ontrol Valve ressure a{kgf/cm }. {.}. {.}. {.}.9 { 9.} ressure a{kgf/cm }. {.}. {.}.9 {9.}. {.} ressure a{kgf/cm }. {.}. {.9}. {.}. {.}. {.}. {.}. {.} low rate l /min low rate l /min low rate l /min -9

325 ressure low Rate haracteristics () Q-*-- : ress rise : ressure drop () Q-*-- ressure a{kgf/cm } {} 9 {9.} {.} {.} ressure a{kgf/cm } {} {} {} {} {} {.} low rate l /min {} low rate l /min () Q-*-- () Q-*-- () Q-*-- ressure ontrol Valve ressure a{kgf/cm }. {.}. {.}. {.}.9 { 9.}. {.} low rate l /min () Q-*-- ressure a {kgf/cm }. {.}. {.}.9 {9.}. {.}. {.} low rate l /min () Q-*-- a{kgf/cm } ressure. {.}. {.}. {.9}. {.}. {.}. {.} low rate l /min {} ressure a{kgf/cm } {} 9 {9.} {.} {.} ressure a{kgf/cm } {} {} {} {} {.} low rate l /min {} low rate l /min -

326 ross-sectional rawing Q-**-**- art o. 9 U ote) he illustration shows the configuration for pressure adjustment ranges ype, ype, and ype. or ype and ype, part number plunger is eliminated, and the part number piston, part number spring are different. Seal art ist (it odel umber RQS-***()) art ame 9 ype/art umber art o. art ame ody over over iston Spring lunger ush rod Screw 9 ut Spacer ameplate oppet Spring guide Spring in lug lug Screw 9 ote) art numbers,,, and are not required when there is no check valve. Q--**- Q--**- Q--**- Q--**- Q--**- Q--**- 9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 ote) he materials and hardness of the conforms with S. or the *** part of the kit number, specify the valve size (, ). o specify inclusion of a check valve, add to the end. Q'ty ressure ontrol Valve -

327 R < > VV hrottle (and heck) Valve eatures qompact and lightweight, requires very little space for installation. wspecial needle valve configuration provides smooth flow rate control. Specifications 9l/min a eressure is internally balanced for light handle operation, even at high pressure. R-*- U R-*- U odel o. aximum low racking aximum Working Weight kg ominal iameter Rate pressure ressure Screw ounting asket ounting (Size) l/min a{kgf/cm } a{kgf/cm } ype ype ()R-- ()R-- /.{.}.. ()R-- ()R-- / {}... {.} ()R-- ()R-- / 9.. andling zhe control flow rate is increased by counter clockwise (leftward) rotation of the flow rate control handle. xhe control flow rate does not become zero even if the handle is fully turned. chere is no pressure or temperature compensation mechanism. vi-directional restriction is possible when there is no check valve. buse the table to the right for specification when a sub plate is required. nsee the table to the right for installation hex socket bolts. owever, bolts are not included for a screw mounting type. xplanation of model o. pplicable ump odel olt Size Q'ty ightening orque m{kgf cm} ()R-- l to { to } ()R-- l to 9{ to 99} ()R-- 9l to { to } ote) or mounting bolts, use bolts of.9 strength classification or equivalent. Sub late odel o. ipe iameter Recommended low Rate l/min Weight kg pplicable Valve ype R-- /. ()R-- R-- /. ()R-- R-- / 9. ()R-- low ontrol Valve ()R esign number hrottle valve hrottle and check valve ominal diameter (size) ounting method : Screw ounting : asket ounting -

328 nstallation imension rawings ()R-**- (Screw ounting) - Rc X. φ S ock out stroke S hrottle stroke S ull stroke odel o. ()R--. ()R-- 9. ()R--. S S S. /. 9 /. / φ φ ()R-**- (asket ounting) Sub late R-**- low ontrol Valve X. X. S ull stroke S hrottle stroke S ock out stroke U φ φ - φ x counterbore (from back) φ holes - x φx - φ x counterbore φ holes U Rc φ holes S S S. / / 9 / odel umber ()R--... ()R--. 9 ()R

329 l/min low rate erformance urves ydraulic perating luid inematic Viscosity mm /s Stroke low Rate haracteristics ()R-*- ifferential pressure a {kgf/cm } ifferential pressure.a {kgf/cm } ifferential pressure a {.kgf/cm } ifferential pressure.a {.kgf/cm } Stroke mm umber of handle rotations l/min low rate ifferential pressure a {kgf/cm } ifferential pressure.a {kgf/cm } ifferential pressure a {.kgf/cm } ifferential pressure.a {.kgf/cm } ()R-*- Stroke mm umber of handle rotations low rate l/min ()R-*- ifferential pressure a {kgf/cm } ifferential pressure.a {kgf/cm } ifferential pressure a {.kgf/cm } ifferential pressure.a {.kgf/cm } Stroke mm umber of handle rotations ressure oss haracteristics ()R-*- ()R-*- ()R-*- ressure oss a{kgf/cm } U. {.} U. {.} ()R-*-. {.} ()R-*-. {.}. {.}. {.}. {.} low rate l/min ross-sectional rawing ressure oss a{kgf/cm } U U low rate l/min {.} {.} {.} {.} {.} {.} {.} low ontrol Valve R-**- 9 Seal art ist (it odel umber SS-***) art o. art ame U R-- R-- R-- art umber Q'ty art umber Q'ty art umber Q'ty R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 art o. 9 art ame ody oppet iston racket Stopper Screw Spring ut andle in lug lug all late Rod ote) he materials and hardness of the conforms with S. *** in the kit number is used for specification of the valve size (,, etc.) -

330 RUR S W R < > VV ype low ontrol (and heck) Valve (With ressure and emperature ompensation) eatures. to l/min a -*-**- U --*- U qressure compensation and temperature compensation mechanisms provide a stable control flow rate, even when oil temperature fluctuates. w wider control flow rate range as well as easier minute flow rate adjustability than previous products. low ontrol Valve Specifications odel o. () ominal iameter (Size) / / Volume control flow rate l/min. to. to. to. to andling zn the temperature range of to, flow rate fluctuation is within ±% of the standard flow rate at. xn the pressure range of. to a {. to kgf/cm }, flow rate fluctuation is within ±% of the setting flow rate. cote that flow rate fluctuation exceeds the rated fluctuation amount slightly in the vicinity of the minimum control flow rate, due to changes in operating temperature and hydraulic fluid viscosity. vwhen controlling flow rates that are less than.l/min, use with a filter that does not exceed μm. bor flow rate control, make sure that the pressure differential between the input port and output port is at least a {.kgf/cm }. nhe control flow rate is increased by clockwise (rightward) rotation of the control handle. aximum Working ressure a{kgf/cm } {} Reverse low Rate l/min msee the table below for installation hex socket bolts. Sub late Sub late ame Sub late with heck Valve racking pressure a{kgf/cm } uxiliary late with heck Valve.hough - does not have a builtin check valve, a sub plate with check valve and auxiliary plate with check Weight kg asket Surface imensions. S {.} *.9 S sterisk (*) indicates values for auxiliary plate with check valve.,use the following table for specification when a sub plate is required. Sub late and uxiliary late pplication able Recommended ipe Weight odel o. low Rate iameter kg l/min -X- / -Y- / -- / -Y- / pplicable Valve ype Use With Sub late. ()--*-. -Z-. -Y-- /. -Z--. pplicable odel olt Size Q'ty ightening orque m{kgf cm} ()--*- l to { to } --*- l to { to } With - uxiliary late l to { to } ote) or mounting bolts, use bolts of.9 strength classification or equivalent. xplanation of model o. () () esign number nti-jumping mechanism (option) aximum control flow rate --**- --- φ. -*-* valve is used in addition to the normal sub-plate. (Use the auxiliary plate in combination with the sub plate.) ominal diameter (size) ounting method : asket type emperature compensated flow control valve emperature compensated flow control and check valve -

331 nstallation imension rawings ()--**- Sub late -*-* φx - holes 9 - φ x counterbore φ. holes. ydraulic fluid inlet.... Volume control flow rate port φ U --***-. φ φ. holes φ holes - φ.x counterbore φ holes ydraulic fluid inlet - Rc Volume control flow rate port φ Sub late -X-. / -Y- / φ.. nti-jumping mechanism ()--*-- ()--**-- X.. X.. low ontrol Valve Sub late -- -Y Z U - φ.x. counterbore φ holes - φ - Rc Sub late / -Y / - φ x - holes.. U - φ.x. counterbore φ holes - x - φ - Rc - φx... -

332 Sub late with heck Valve -*-- - x - φx - φ.x. counterbore φ holes.. U.... φ - - Rc uxiliary late with heck Valve --- odel o. -Y--. / -Z--. -φ x -φ. holes U φ φ - φ φ -... U low ontrol Valve..... il emperature ontrol low Rate haracteristics Scale ontrol low Rate haracteristics erformance urves ydraulic perating luid inematic Viscosity mm /s l/min low rate Volume control flow rate l/min ()-- - () il temperature ()-- - () Scale ressure oss a{kgf/cm } l/min low rate ressure ontrol low Rate haracteristics ()-- - () {.} {.}{9.} {} {}{} {} ressure a{kgf/cm } ressure oss haracteristics. {.} U.9 --**- { 9.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.} low rate l/min -

333 ross-sectional rawings --*- X X 9 R S R S X X X 9 9 art o. art ame ody Retainer Stopper ial late late late Spring 9 late lug lug hrottle iston Sleeve nti-jumping mechanism ()--*-- art o. art ame nob Screw Spring Spring 9 Snap ring oppet Spring in in in in ackup ring 9 ()--*- art o. art ame 9 lug lug lug lug lug Screw Screw 9 Screw Washer ist of Sealing arts art ()--*- --*- art ame o. art umber Q'ty art umber Q'ty ackup ring - - R-9 R-9 R-9 R-9 9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 Seal it umber S-- S- ote). he materials and hardness of the conforms with S.. ackup ring indicates S -**. nti-jumping mechanism art o. art ame Retainer olt ut ut Spring pin ist of Sealing arts low ontrol Valve Sub late -*-- art ()--*- --*- art ame o. art umber Q'ty art umber Q'ty R-9 R-9 R-9 R-9 ote). he materials and hardness of the conforms with S.. he part number and part number are interchangeable. art o. U art ame Sub late oppet Spring art o. art ame lug --- art o. art ame Sub late oppet Spring lug in Screw ist of Sealing arts art o. art ame art umber Q'ty R-9 U ist of Sealing arts art o. art ame art umber Q'ty R-9 R-9 -

334 W R < > VV -**-*- U ype low ontrol (and heck) Valve (With ressure ompensation) eatures 9 to l/min a -**-*- U qwide control flow rate range. w pressure compensation mechanism ensures that the control flow rate does not change, even when there is pressure fluctuation. Specifications low ontrol Valve odel o. ominal iameter (Size) Volume control flow rate l/min aximum Working ressure a{kgf/cm } racking pressure a{kgf/cm } Weight kg asket Surface imensions ()--- / 9 to. S {}.{.} ()--- / to. andling zn the pressure range of. to a {. to kgf/cm }, flow rate fluctuation is within ±% of the setting flow rate. xor flow rate control, make sure that the pressure differential between the input port and output port is at least.a {.kgf/cm }. che control flow rate is increased by clockwise (rightward) rotation of the control handle. vsee the table below for installation hex socket bolts. buse the following table for specification when a sub plate is required. Sub late pplication able Recommended ipe odel o. low Rate iameter l/min Weight kg -- /. -X- 9. pplicable odel olt Size Q'ty ightening orque m{kgf cm} ()- l 9 to {9 to } ()- l to { to 9} ote) or mounting bolts, use bolts of.9 strength classification or equivalent. xplanation of model o. pplicable Valve ype ()--- () esign number aximum control flow rate ominal diameter (size) ounting method : asket type low control valve low control and check valve -

335 nstallation imension rawings ()-**-*- φ hole ydraulic fluid inlet - φ il adjustment outlet ock bolt φ Sub late -*-.. odel o. imensions mm ()--*- 9.. ()--* R. Sub late.... U imensions mm R S U --. / -X- - φ x. counterbore φ holes S - φx - holes - φ holes - Rc U low ontrol Valve -9

336 l/min low rate erformance urves ydraulic perating luid inematic Viscosity mm /s ressure ontrol low Rate haracteristics Scale ontrol low Rate haracteristics ressure oss haracteristics ()--- ()--- 9 {.}{.}{9.} {} {} {} {} ressure a {kgf/cm } ross-sectional rawing Volume control flow rate l/min ()--- ()--- Scale ressure oss a{kgf/cm } {.}. {.}. {.}. {.}. {.}. {.}. {.} low rate l/min -**-**- 9 9 low ontrol Valve 9 9 U ()--*- --*- art o. art ame ody over nob ear ea ear ushing hrottle 9 Sleeve iston Spring Spring oppet lug lug art o. art ame lug lug Retainer 9 Stopper in in in in in Screw Screw Screw Screw 9 Screw Washer art o. art ame lug lug lug lug lug 9 late Screw Seal art ist (it odel umber S-***) art art ame o. art umber Q'ty art umber Q'ty R-9 R-9 R-9 R-9 R-9 R-9 9 R-9 R-9 9 R-9 9 R-9 R-9 R-9 ote) he materials and hardness of the conforms with S. or the *** part of the kit number, specify the valve size (, ). -

337 RUR S W R < > VV ype low ontrol (and heck) Valve (ine djustment ype With ressure and emperature ompensation) qwith a very compact, lightweight configuration, the intelligent design of this valve makes it a low-cost option. winute flow rate control from cm. odel o. () eatures Specifications ominal iameter (Size) / Volume control flow rate l/min. to. to andling zn the temperature range of to, flow rate fluctuation is within ±% of the standard flow rate at. xn the pressure range of. to.a {. to kgf/cm }, flow rate fluctuation is within ±% of the setting flow rate. cote that flow rate fluctuation exceeds the rated flow rate fluctuation amount slightly in the vicinity of the minimum control flow rate, due to changes in operating temperature and hydraulic fluid viscosity. vwhen controlling flow rates that are less than.l/min, use with a filter that does not exceed μm. bake sure that the pressure differential between the inlet port and outlet is at least.a {.kgf/cm } at l/min or less, and at least.a {.kgf/cm } at l/min or greater. nhe control flow rate is increased by clockwise (rightward) rotation of the adjustment handle. () () estable control of each setting flow rate, even as pressure and oil temperature are fluctuating. rial markings are proportional to flow rate for simple and esign number nti-jumping mechanism (option) aximum control flow rate ominal diameter (size) ounting method low control valve low control and check valve aximum Working ressure a{kgf/cm } xplanation of model o. : asket type Reverse low Rate l/min. to l/min.a racking pressure a{kgf/cm } accurate control flow rate adjustment. Weight kg.{}.{.}. mor connection to piping, normally connect to the sub plate. Valve mounting is gasket type, using an. When a screw in connection is required, seal the gasket surface, remove the side plug, and create a screw in connection directly to the valve unit. n this case, remove all seal material affixed to the plug.,use the following table for specification when a sub plate is required. Recommended ipe Weight odel o low Rate iameter kg l/min -- /..undled ccessories: ex Socket olts x l, (four) ote). or mounting bolts, use bolts of.9 strength classification or equivalent.. ightening torque is to m { to kgf cm}. --*- U --*- U low ontrol Valve -

338 nstallation imension rawings ()--**- 9 - φ x. counterbore φ 9 holes. φ 9 φ U Sub late -- φ x ock bolt - x - φ x. counterbore φ 9 holes Screw in use- Rc / X. X. Screw in use- Rc / U - φ 9 nti-jumping mechanism low ontrol Valve erformance urves ydraulic perating luid inematic Viscosity mm /s il emperature ontrol low Rate haracteristics l/min low rate 9 ()--- ()--- il temperature - Rc / l/min low rate ressure ontrol low Rate haracteristics ()--- ()--- 9 {.} {.} {.} {.} {} {.} {.} ressure a {kgf/cm } Scale ontrol low Rate haracteristics Volume control flow rate l/min ()--- ()--- Scale ressure oss a{kgf/cm } ressure oss haracteristics U. {.}. {.}. {.}. {.}. {.}. {.}. {.} low rate l/min -

339 ross-sectional rawings --*- U W R VV. US R, nti-jumping mechanism ()--*-- art o. art ame ody Sleeve Spool iston lug lug late nob 9 Ring ear ear oppet Seal art ist (it odel umber S-()) art art --*- --*- o. ame art umber Q'ty art umber Q'ty R-- 9 R-- 9 R-- R-- 9 R-- R-- ote) Specify at the end of the model number for the kit. ote) he materials and hardness of the conforms with S. art o. art ame Spacer Snap ring Spring Spring late in 9 in in in in in Screw art o. art ame Screw Screw 9 lug all all Washer Screw late art o. art ame Retainer olt ut ut ut Spring pin Seal art ist art art art ame Q'ty o. umber R-- 9 R-- ote) art number and part number are interchangeable. low ontrol Valve -

340 RUR S W R < > VV S ype low ontrol (and heck) Valve (ine djustment ype With ressure and emperature ompensation) eatures. to l/min.a S--- U S--- U qriginal compact, lightweight configuration. wigh-precision control up to minute flow rates of cm. eesign allows large l/min reverse flow rate relative to control flow rate, Specifications which means there is no need to include an extra valve in the quick return circuit. rstable control of each setting flow rate, even as pressure and oil temperature are fluctuating. low ontrol Valve odel o. ominal iameter (Size) andling zn the temperature range of to, flow rate fluctuation is within ±% of the standard flow rate at. xn the pressure range of. to.a {. to kgf/cm }, flow rate fluctuation is within ±% of the setting flow rate. cote that flow rate fluctuation exceeds the rated fluctuation amount slightly in the vicinity of the minimum control flow rate, due to changes in operating temperature and hydraulic fluid viscosity. () S Volume control flow rate l/min aximum Working ressure a{kgf/cm } Reverse low Rate l/min racking pressure a{kgf/cm } ()S--- /. to.{}.{.}.9 xplanation of model o. esign number aximum control flow rate ominal diameter (size) ounting method low control valve low control and check valve Weight kg vwhen controlling flow rates that are less than.l/min, use with a line filter no greater than μm. bor flow rate control, make sure that the pressure differential between the input port and output port is at least.a {.kgf/cm }. nhe control flow rate is increased by clockwise (rightward) rotation of the control handle. muse the table to the right for specification when a sub plate is required. : asket type nstallation imension rawings ()S--- φ ipe Recommended Weight odel o. low Rate iameter l/min kg S-Y- /.,undled ccessories: ex Socket olts: x l (four) ote). or mounting bolts, use bolts of.9 strength classification or equivalent.. ightening torque is. to. m { to kgf cm}.... U.. -

341 Sub late S-Y- - φ x. counterbore φ. holes 9.. φ.x U erformance urves ydraulic perating luid inematic Viscosity mm /s il emperature ontrol low Rate haracteristics l/min low rate.... ross-sectional rawing S--- il temperature - x ressure ontrol low Rate haracteristics l/min low rate - φ..... {.} ressure a{kgf/cm } - Rc / Scale ontrol low Rate haracteristics l/min low rate {.} {.} {.} {} ressure oss a {kgf/cm }.... Scale ressure oss haracteristics. {.} U.... {.} low rate l/min {.} {.} {.} low ontrol Valve art o. art ame art o. art ame 9 9 ody over Sleeve iston uide Spring hrottle oppet Spring Spacer nob Spring lug 9 Screw Screw lug Spring pin Spring pin Spring pin Spring pin Spring pin ameplate Seal art ist (it odel umber S-()) art o. art ame S--- S--- art umber Q'ty art umber Q'ty R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 9 ote) he materials and hardness of the conforms with S. Specify at the end of the model number for the S kit. -

342 low ontrol Valve R RVRS R VV () ype eed ontrol Valve (ine ontrol ype With ressure ompensation) eatures qvery compact, lightweight, and economically priced. wpplicable for control of machine tool table operations. or example, a single valve provides smooth control of: ast eed => utting eed ( stage) => ast Return. Specifications odel o ominal iameter (Size) / / andling zn the temperature range of to, flow rate fluctuation is within ±% of the standard flow rate at. xn the pressure range of. to.a {. to.kgf/cm }, flow rate fluctuation is within ±% of the setting flow rate. cote that flow rate fluctuation exceeds the rated fluctuation amount slightly in the vicinity of the minimum control flow rate, due to changes in operating temperature and hydraulic fluid viscosity. vwhen controlling flow rates that are less than.l/min, use with a line filter no greater than μm. bake sure that the pressure differential between the inlet port and outlet is at least.a {.kgf/cm } at l/min or less, and at least.a. to l/min a estable control of each setting flow rate, even as pressure and oil temperature are fluctuating. rial markings are proportional to flow rate for simple control flow rate adjustment. tsealing the gasket surface allows asis screw-in connection. Volume control flow rate l/min Reverse low Rate eed eed l/min. to. to. to. to. to. to. to.. to {.kgf/cm } at l/min or greater. nhe control flow rate is increased by clockwise (rightward) rotation of the control handle. mor connection to piping, normally connect to the sub plate. Valve mounting is gasket type, using an. When a screw in connection is required, seal the gasket surface, remove the side plug, and create a screw in connection directly to the valve unit. n this case, remove all seal material affixed to the plug.,see the table below for installation hex socket bolts..use the table to the right for specification when a sub plate is required. does not require drain pipe connection. requires drain pipe connection. pplicable odel olt Size Q'ty ightening orque m{kgf cm} --*- l to { to } ()--*- l to { to } ote) or mounting bolts, use bolts of.9 strength classification or equivalent. xplanation of model o. (.) () esign number nti-jumping mechanism (option) aximum volume control flow rate (eed ) aximum Working ressure a{kgf/cm } racking pressure a{kgf/cm } {.}.{.} -*-*- U ote: has R --*-*- R U Weight kg. odel o. Recommended ipe low Rate iameter l/min. pplicable Valve ype -- / --*- -- / ()--*-*- am own orce -- am own orce {.kgf} minimum --*-*- eed am own orce {.kgf} minimum eed am own orce {.kgf} minimum ake the cam angle no greater than degrees. aximum control flow rate ominal diameter (size) ounting method : asket type -position feed control valve -position feed control valve -

343 nstallation imension rawings --*- ull stroke hrottle stroke ockout stroke 9 φ Refer to detail view. ock bolt - φ x. counterbore φ 9 holes Screw in use - Rc / Roller operation range detail view (hrottle stroke) (ull stroke). X. 9 φ. U φ Screw in use - Rc / Sub late -- φ x nti-jumping echanism --*-- X. X. U - φ -Rc/ -x - φ x. counterbore φ 9 holes ±. 9 (ockout stroke ) ()--*-*- X.. 9 R VV US R -- Roller operation range detail view (irst throttle stroke) (eed full stroke) (full stroke) φ 9 9 Refer to detail view. X R eed () eed (irst lockout stroke) eed full stroke 9 eed full stroke 9 hrottle stroke ockout stroke - φ.x. counterbore φ holes ydraulic fluid inlet ock bolt --*- does not have this knob. il adjustment outlet φ U ull stroke 9 () (eed only) ull stroke () (eed, eed ) 99. Rc / φ Rc / R Rc / ()--*-*-- Sub late U - φ R φ - Rc / Rc / X. X. φx - x - φ.x counterbore φ holes low ontrol Valve (eed full stroke) (he second lockout stroke) (he second throttle stroke) erformance urves ydraulic perating luid inematic Viscosity mm /s il emperature ontrol low Rate haracteristics ressure ontrol low Rate haracteristics Scale ontrol low Rate haracteristics ressure oss haracteristics l/min low rate 9 l l.l il temperature l/min low rate 9 l l.l {.} {.} {.} {.} {} {.} {.} ressure a{kgf/cm } l/min low rate l l.l Scale ressure oss a {kgf/cm } U Scale U Scale Spool pressed low rate l/min {.} {.} {.} {.} {.} {.} {.} -

344 ross-sectional rawings --*-*- U R R VV US R low ontrol Valve nti-jumping mechanism --*-- ()--*-*-- art o. art ame Retainer olt ut ut ut Spring pin Seal art ist art o. art ame art umber Q'ty R-- 9 R-- ote). art number and part number are interchangeable.. he materials and hardness of the conforms with S. ote) he drawings on the left are cross sections. n the case of, there is no knob on the right side. art o. art ame ody over lug lug hrottle Spool oppet iston 9 Sleeve Sleeve ear ear nob Ring Stopper late Roller in 9 Spacer art o. art ame Spacer in Spring Spring Spring Snap ring Snap ring late Washer 9 in in in in in in in Screw Screw Screw art o. art ame 9 Screw lug lug lug Screw Screw 9 all all all all all late Seal art ist (it odel umber S-***()) art --*- --*- --*-*- art ame o. art umber Q'ty art umber Q'ty art umber Q'ty R-- 9 R-- 9 R-- 9 R-- R-- R-- R-- R-- R-- R-- R-- 9 R-- R-- R-- R-- R-- R-- R-- R-- ote). *** in the kit number is used for specification of the valve size. o specify, add to the end.. he materials and hardness of the conforms with S. -

345 eatures R VV - VV Right ngle heck Valve n-line heck Valve l/min a U qhe right angle type check valve changes the flow direction of fluid 9 degrees, while the in-line check valve allows only axial direction flow. Specifications whe cracking pressures of these valves are fixed, so fluid passes freely in one direction, but is restricted from flowing in the opposite direction. Right ngle heck Valve n-line heck Valve andling z Use the following table for specification when a sub plate is required. odel o. odel o. ominal aximum aximum racking ressure Weight kg iameter Working ressure low Rate Screw ounting asket ounting (Size) a{kgf/cm } l/min a{kgf/cm } ype ype ipe iameter Recommended low Rate l/min Weight kg pplicable Valve ype -- /. --*- -- /. --*- -- ¼. --*- xplanation of model o. ominal diameter (size) ounting method : Screw ounting : asket ounting / {} x he following are the bundled mounting bolts. odel o. olt imensions Q'ty ightening orque m{kgf cm} --*- l to { to } --*- l 9 to {9 to } --*- l to { to 9} ote) or mounting bolts, use bolts of.9 strength classification or equivalent. esign number : n-line type : Right angle type racking pressure,, / ¼ / / ¼ 9. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.} irection ontrol Valve : Right angle check valve : n-line check valve -

346 nstallation imension rawings -**- (Screw ounting) φ U - φ - Rc Q odel o. Q --*- 9 9 / --*- 9 / --*- 9 9 ¼ -**-*- (asket ounting) Sub late φ x U irection ontrol Valve φ φ pin - φ x counterbore φ holes - "X" holes -Rc"Q" ote) xternal appearance of the subplate is slightly different from the drawing depending on the size. - φ x counterbore φ holes - φ Q X 9. 9 / / ¼ odel o. --* * * **-*- (Screw ounting) -Rc"Q" odel o. --*-. / --*- 9.9 / --*- 9. ¼ U -

347 erformance urves ydraulic perating luid inematic Viscosity mm /s ressure oss haracteristics -* - -* - -* - ressure oss a {kgf/cm }. {.} c. {.}. b {.} f. {.} e a. d {.} pplicable Valve ype a. -*-- b. -*-- c. -*-- d. --- e. --- f. --- ross-sectional rawing -**-*- low rate l /min pplicable Valve ype a. -*-- b. -*-- c. -*-- d. --- e. --- f ressure oss a {kgf/cm } Seal art ist (it odel umber S-***) art o.. b. {.} a. f. {.} e d. {.} low rate l /min art ame c pplicable Valve ype a. -*-- b. -*-- c. -*-- d. --- e. --- f. --- art o. art ame ody oppet Seat lug Spring in 9 ameplate ype/art umber R-9 R-9 R-9 R-9 R-9 R-9 ote) he materials and hardness of the conforms with S. *** in the kit number is used for specification of the valve size (,,, etc.) {.} {.} ressure oss a {kgf/cm }.. {.} f a e. {.} d. {.}. {.} low rate l /min c b Q'ty {.} irection ontrol Valve -

348 R VV ormal form U ilot heck Valves l/min a eatures xternal drain type U qormally, fluid is allowed to flow in a single direction, just as with a standard check valve. Reverse flow can be enabled, however, when the check valve is pushed upwards by external pilot pressure. wvery compact configuration. R Specifications irection ontrol Valve odel o ominal aximum aximum racking Weight kg iameter Working ressure low Rate ressure Screw ounting asket ounting (Size) a{kgf/cm } l/min a{kgf/cm } ype ype ---*- ---*- ---*- ---*- ---*- ---*- ote) Weight values in parentheses are for the external drain type. andling z he following explains how to use the external drain. e sure to always use the external drain type when back pressure is applied to fluid outlet port side during reverse flow as in the circuit illustrated below. / xplanation of model o. racking pressure, ominal diameter (size) / {} ¼. {.}. {.}. {.}. {.}. {.}. {.} x inimum pilot pressure is altered by input side pressure during reverse flow. ecause of this, operate the valve so pressure is at least twice as high as the required pilot pressure obtained using the minimum pilot pressure characteristics. esign number. (.). (.). (.). (.). (.). (.) rea Ratio ilot Valve iston Small Valve c Use the following table for specification when a sub plate is required. odel o. ipe iameter Recommended Weight low Rate kg l/min pplicable Valve ype -- /. --*- -- /. --*- -- ¼. --*- v he following are the bundled mounting bolts. odel o. olt imensions Q'ty ightening orque m{kgf cm} --*-*- l to { to } -- l to { to } uxiliary symbol -- l to { to } one: Standard ote) or mounting bolts, use bolts of.9 strength classification or equivalent. : xternal drain type : With anti-shock mechanism (decompression type) : With external drain, with shock-resistant mechanism ounting method : Screw ounting : asket ounting ilot check valve -

349 nstallation imension rawings -**-*-*- (Screw ounting) R U Rc/ ressure gauge attachment port odel o. --*-()- --*-()- 9 --*-()- --*-()- --*-()- --*-()- Rc/ Rc/ -Rc"" / / 9 ¼ -**-*-*- (asket ounting) Sub late φ x counterbore φ holes Rc/ ressure gauge attachment port φ pin -φ holes -""x R - φ holes U -φ.x counterbore φ holes -Rc/ -Rc"Q" ote ) rain piping is not required for standard products. rain piping is required in the case of external drain type (). ote ) xternal appearance of the sub-plate is slightly different from the drawing depending on the size. nstallation dimensions are as shown in the dimension tables. Q / 9 9. /. 9. ¼ irection ontrol Valve odel o. --*-()- --*-()- --*-()-. --*-() *-()-. --*-()

350 erformance urves ressure oss haracteristics ydraulic perating luid inematic Viscosity mm /s ressure oss a {kgf/cm } ressure oss a {kgf/cm } * low rate l /min -* low rate l /min pplicable Valve ype a. -*--*- ree low b. -*--*- c. -*-*-*- Reverse low b a c pplicable Valve ype a. -*--*- ree low b. -*--*- c. -*-*-*- Reverse low b a c {.} {.} {.} {.} {.} {.} {.} {.} {.} {.} {.} {.} {.} {.} ressure oss a {kgf/cm } inimum pilot pressure a {kgf/cm } * low rate l /min pplicable Valve ype a. -*--*- ree low b. -*--*- c. -*-*-*- Reverse low {.} b {.} {.} a {.} {.} c {.} {.} inimum ilot ressure haracteristics {}. {}. b c {.}. a {.}. {.} d e {} {} {} {} {} Reverse flow inlet side pressure a {kgf/cm } pplicable Valve odel o. Valve pen Small Valve pen -* a d -* b e -* c e irection ontrol Valve ross-sectional rawings -**-*- 9 -**-* ote) -** refers to S --**. Seal art ist (it odel umber S-***) art o. art ame --*- --*- --*- Q'ty 9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 9 R-9 9 R-9 9 R-9 9 R-9 9 R-9 R-9 R-9 ***in the kit number is used for specification of the valve size. Seal art ist (it odel umber S-***R) art o. art ame art o. art ame 9 ody over iston oppet Seat lug Spring in Screw lug lug late art o. art ame art o. art ame art o. art ame ody over oppet oppet iston Seat Rod ushing 9 lug Spring Spring Screw lug lug in 9 late art o. art ame --*-- --*-- --*-- Q'ty R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 9 R R-9 9 R-9 9 R-9 9 R-9 R-9 R-9 R-9 R-9 R-9 ***in the kit number is used for specification of the valve size. -

351 U auge ock a eatures qultra-compact configuration requires minimal installation space. wntelligent design packs plenty of function into a simple configuration. Specifications eaximum operating pressure of a{kgf/cm } allows operation across a wide range. loat ype odel o. lange ype "" (ominal imension) xplanation of model o. mm mm aximum Working ressure a{kgf/cm } / 9 {} / {} / Weight kg. () ominal diameter (size) esign number : or -, ounting method : loat type : lange type auge cock : Rotatable pressure gauge attachment. nstallation imension rawings -**- () -**- () X. "" X.9 "" X Y Z irection ontrol Valve ote (9) φ ote (9) φ Rc/ ote). aximum iron plate thickness: 9t; outing olt ole iameter: φ When mounted to panel oosen the X lock nut and Y cap nut, and pull out the Z adjusting screw. o return to its original position, reverse this process.. imensions in parentheses are for the size. Rc/ X.9. or information about "" and, see the specifications. he ring shown below is used as a pressure gauge seal beneath screw. / S -- / S -- / S --9 -

352 Y UY R R VV ype anual Valve to l/min a eatures qhe compact and sizes are perfect for small flow rate control. wsince a balanced type valve is used, there is no need for drain piping, and use with back pressures up to a (kgf/cm ) is possible. eounting methods are the same as S/, and the, size modular valve can be used, so circuit configuration is quick and easy. irection ontrol Valve - Specifications ominal odel o. iameter (Size) --***- / aximum Working ressure a{kgf/cm } ank ort ack ressure a{kgf/cm } aximum low Rate l/min Spool Stroke (mm) -position -position. () {()} {} --***-() /. ositions ype S Symbol odel o. -position -position losed ross pen ross losed ross pen ross ll orts pen ll orts locked onnection onnection losed ross Restricted pen ross losed ross Restricted pen ross onnection - -X- () - -Z- () - -X- () - -Z- () - -- () - -- () - -- () - -- () - -- () - -- () - -X- () - -Y- () - -X- () - -Y- () - -- () - -- () odel o. ipe iameter aximum Working ressure a{kgf/cm } {} {} {} aximum Working ressure a{kgf/cm } Weight kg andling z he following are the three types of lever operations. qspring ffset ype (ype ) he lever is normally kept in the end position by the spring. Raising the lever performs switching, and the lever returns to its original position when released. wspring enter ype (ype ) he spool is normally in the center of position. fter switching to either end, the spring returns the lever to its center position when the lever is released. eetent ype (ype, ype ) notch at spool position or position acts as a stop. x ressure loss is the same as that for the S-/, so see S-/ for more information. c he lever mounting orientation can be positioned at 9 increments by changing the orientation of the lever side cover. v or connection type -/ -**-(), closed cross -/ -*X-() is the standard type. b he relationship between the lever switching positions and S symbols is shown below. (See the installation dimension diagrams for symbols & and &.) -position -position n ounting bolts are not included with the size. --***- l --***- l --***- l ote) Use bolts of.9 strength classification or equivalent. m he following shows the sub plates. Recommended low Rate (l/min) Weight (kg) pplicable Valve ype S-Y- /. --***- S-- / S-X- / {}. --***- S-- / S-X- /. --***- hese sub plates can also be used with S (SS)-/, so see S (SS)-/ for mounting methods.

353 xplanation of model o. X anual valve ( type) peration ethod : Spring offset type : Spring center, : etent ominal diameter, ounting method esign number enter valve position flow path,,,,, : size and size for mounting bolt : size for mounting bolt ransition flow path (**, ** only) X: losed Y: Restrictor open Z: pen : asket type nstallation imension rawings --***- asket Surface imensions S ---- S ---- φ9 φ position -position --***-() asket Surface imensions S ---- S ---- φ 9 φ... -position -position φ φ irection ontrol Valve ross-sectional rawing --***- 9 9 Seal art ist art o. art o. art ame ody over over Spool Ring ush ever Spring 9 Rod cover ameplate Stopper screw Screw art ame --**- --**- φ φ. φ.. art o. art ame Screw in nob 9 ackup ring Snap ring uide all Retainer odel o. - Q'ty - Q'ty R-- R-- S-(R-9) S-(R-9) S-9(R-9) R-9 9 ackup ring - - ote). he materials and hardness of the conforms with S.. ackup ring indicates S --**. -9

354 lange ype heck Valve/hrottle Valve ilot perated heck Valve l/min a eatures q his series provides high capacity and flange connection, as well as compliance with new standards and apan il ydraulic Standards (S). weasurable higher pressure and higher capacity than previous models. irection ontrol Valve Right ngle heck Valve ilot perated heck Valve Slot Valve Specifications odel o. lange ounting *- ---*- ---*- ominal iameter (Size) / aximum Working ressure a{kgf/cm } {} Rated flow rate l/min ¼ / odel o. ominal iameter lange ounting (Size) ()R-- / ontact your agent for more information about mounting methods, etc. ¼ {} aximum Working ressure a{kgf/cm } Rated flow rate l/min racking pressure a{kgf/cm }. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.}. {.} racking pressure a{kgf/cm } Weight kg..... Weight kg ()R-- ¼ {}. {.}. ()R--.. apan luid ower ssociation Standard umber S9 S apan luid ower ssociation Standard umber S -

355 R-YRU RR VV lectro-hydraulic roportional Valve Series verview to l/min,,,a oday's hydraulic systems demand high levels of automation, power efficiency, and energy efficiency, which is why the use of electro-hydraulic proportional valves is on the rise. uilt-in qressure ontrol Valve Series R Series Small-volume direct driver type pilot relief valve R Series arge-volume balanced piston type relief valve Series arge-volume balanced piston type pressure reducing valve with relief function he pressure control section uses a poppet structure, which is virtually impervious to the effects of dirt in the operating fluid for outstanding pressure stability. wlow ontrol Valve Series S Series SR Series eatures his -directional valve provides proportional flow control in accordance with input current. With a built-in rod sensing function, this -way valve is for use in low-energy circuits. Series ist ame aximum Working ressure a {kgf/cm } lectro-hydraulic roportional ilot Relief Valve (R) {} lectro-hydraulic roportional Relief Valve (R) {} lectro-hydraulic roportional Relief and Reducing Valve lectro-hydraulic roportional low ontrol Valve oad Sensitive lectro-hydraulic roportional Relief and low ontrol Valve lectro-hydraulic roportional low ontrol Valve odular ype lectro-hydraulic roportional Reducing Valve odular ype lectro-hydraulic low ontrol Valve ower mplifier () {} (S) {} (SR) {} (S) {} () {} () {} () () electronic components deliver outstanding response and fluid pressure that allows high output, as well as superior operation, and control. he lectrohydraulic roportional force feedback mechanism is used for main spool positioning, and amplification is performed by the pilot spool. he result is superior response with small hysteresis and outstanding flow rate reproduction. e irection low ontrol Valve Series S Series his electro-hydraulic proportional valve provides both direction control and flow control functions. ounting methods are the same as those for standard directional valves, which allows simple structuring and maintenance. r odular ype ontrol Valve Series - - his reduction valve with relief function can be used in ganged configurations. his flow control valve combines a restrictor valve with a pressure compensation valve. Valve Series includes the pressure control valves, flow control valves, and direction control valves that make it easy to meet these needs. his dual configuration provides easy installation along with dramatically reduced space requirements. tower mplifiers Series mplifier type Series ontroller type current-feedback amplifier system is used to virtually eliminate output current fluctuation. he same power supply specifications apply to all types. yompact ower mplifiers Series mplifier type he highly efficient W control system of this new series ensures high reliability in a compact configuration. u ompact, ulti-function ower mplifiers Series mplifier type his compact amplifier can drive two solenoids with a single input. Series mplifier controller type choice of inputs: -contact or input/- contact. Rated low Rate l/min Size lectro-hydraulic control valve ompact ower mplifier () ompact, ulti-function ower mplifier () () -

356 lectro-hydraulic control valve R-YRU RR R VV lectro-hydraulic roportional ilot Relief Valve his solenoid relief valve matches the suction force of a solenoid with fluid pressure. When connected to a small-volume hydraulic system or the tem eatures Specifications odel o..l/min. to a poppet of a balanced piston type pressure control valve, this valve provides continual pressure control in proportion to input current. R--*-****- Rated urrent l/min. ressure ontrol Range a{kgf/cm } :. to.{. to.} :. to {. to } :. to { to } :. to {. to } :. to {. to } :. to { to } Rated urrent m oil Resistance Ω ysteresis % ( ) max. (ote) Weight kg. ote) Value when a achi-ujikoshi special amplifier is used (with dithering). xplanation of model o. R S able ressure ort and ank ort rifice Symbols ote) he following are the standards for the orifice auxiliary symbols. ressure ontrol Range rifice uxiliary Symbol ype, ype ype, ype ype ype S S S S esign number lunger orifice symbol one: o orifice S: With orifice ank port orifice symbol (able ) ressure port orifice symbol (able ) ressure control range,,,,, ominal diameter ounting method : asket type lectro-hydraulic proportional pilot relief valve rifice Symbol 9 rifice iameter one φ. φ.9 φ. φ. φ. φ. andling zir leeding o enable proper pressure control, loosen the air vent when starting up the pump in order to bleed any air from the pump, and fill the inside of the solenoid with hydraulic operating fluid. he position of the air vent can change by loosening the screw and rotating the cover. xounting ethod ounting on a vertical surface causes minimum pressure to increase by.a {kgf/cm }. canual ressure djusting Screw or the initial adjustment or when there is no input current to the valve due to an electrical problem or some other reason, valve pressure can be increased by rotating the manual adjustment screw clockwise (rightward). ormally, the manual adjusting screw should be rotated back fully to the left (counterclockwise) and secured with the lock nut. vinimum Relief low Rate small flow rate can cause setting pressure to become unstable. Use a flow rate of at least.l/min. boad apacity When using this valve to control direct circuit pressure, make sure the load volume (valve port side volume) is at least cm. nundled ccessories (Valve ounting olts) x l(four) ightening torque: to m { to kgf cm} msub late When a sub plate is required, order using the following model number. S-Y- (See the next page for dimensions.),use an operating fluid that conforms to the both of the following. il emperature: to inematic Viscosity: to mm /s. he recommended kinematic viscosity range is to mm /s. -

357 nstallation imension rawings R φ 9.x9. counterbore φ. holes onnector cord diameter φ to set screw (hex width across flats ) ir vent (ir bleeding) (hex width across flats ). X. X. erformance urves ock nut (width across flats ) anual pressure adjusting screw... Sub late S-Y φ. -x - φ 9.x counterbore φ. holes -Rc (reviously ) / ote) nstall the sub plate so the valve's port is aligned with the sub plate's port. he gasket surface dimensions comply with the S standard shown below. S ---- ydraulic perating luid inematic Viscosity mm /s nput urrent ressure haracteristics ressure a {} R-- {} R-- {} R-- {} {kgf/cm } nput current m ressure a {} ype {} ype {} {} ype {} {} {} {} {kgf/cm } nput current m ross-sectional rawing R--*-**** Seal art ist (it odel umbers--) art o. art ame art umber Q'ty R-9 R-9 9 R-9 S - (R-9) R-9 S- (R--) 9 R-- Seal W--.-. ote) he materials and hardness of the conforms with S. art o art ame ody lug Seat oppet Spring Retainer over Stopper uide Shim lunger Rod over ut Screw Screw Screw Screw onnector oil all bush hoke Seal Screw ote) oil model number - lectro-hydraulic control valve -

358 lectro-hydraulic control valve R-**-*- eatures Specifications R-YRU RR R VV lectro-hydraulic roportional Relief Valve his valve combines a compact, high-performance electro-hydraulic proportional pilot relief valve and balanced piston type relief valve to provide pressure control in proportion to input current. tem odel o. xplanation of model o. nstallation imension rawings to l/min. to a hroughput volume and oil temperature fluctuation has little effect on control pressure, so this valve provides open loop control of even complex pressures (forces). R--*- R--*- aximum low Rate l/min ressure ontrol Range a{kgf/cm } Rated urrent m oil Resistance Ω :. to.{. to.}(ote ) :. to {. to } :. to { to } :. to {. to } :. to {. to } :. to { to } ( ) ysteresis % max. (ote ) inimum Relief low Rate l/min Weight kg.. ote). type only low rate: l/min. Value when a achi-ujikoshi special amplifier is used (with dithering). R esign number ressure control range,,,,, ominal diameter, ounting method : asket type lectro-hydraulic proportional relief valve - φ ax counterbore φ b holes andling zir leeding o enable proper pressure control, loosen the air vent when starting up the pump in order to bleed any air from the pump, and fill the inside of the solenoid with hydraulic operating fluid. xanual ressure djusting Screw or the initial adjustment or when there is no input current to the valve due to an electrical problem or some other reason, valve pressure can be increased by rotating the manual adjustment screw clockwise (rightward). ormally, the manual adjusting screw should be rotated back fully to the left (counterclockwise) and secured with the lock nut. cank ort ack ressure ake sure that tank port back pressure is as small as possible; no greater than.a {kgf/cm }. vsafety Valve Setting ressure he safety valve is set to maximum adjustment pressure plus. to.a {. to.kgf/cm }. When actually using the valve, adjust in accordance with actual pressure. bundled ccessories (Valve ounting olts) odel o. olt Size Q'ty ightening orque m{kgf cm} R- l to 9{ to 9} R- l 9 to {9 to } nuse an operating fluid that conforms to the both of the following. il emperature: to inematic Viscosity: to mm /s. he recommended kinematic viscosity range is to mm /s. set screw (hex width across flats ) onnector cord diameter φ to ir vent (ir bleeding) (hex width across flats ) anual pressure adjusting screw Relief valve pressure adjusting bolt. 9. φ he gasket surface dimensions comply with the S standard shown below. S S odel o. a b R R

359 Sub late (aximum perating ressure: a) R-*- φ drillingx φ drilling Rc / (back) to screwsx R-*- φ x φ Rc / (back) - holes 9. to φ erformance urves low Rate ressure haracteristics R--*- {} ype {} ressure a {kgf/cm } ross-sectional rawing R-**-*- X to φ.... to φ to Rc "" (back) ype {} {} ype ype {} ype {} {} 9 X Seal art ist (it odel umber RS-**) art ominal iameter/art umber art ame o. Q'ty R-9 R-9 R-9 9 R-9 9 R-9 R-9 R-- R-- R-9 R-9 R-9 R-9 R-9 R-9 9 ackup ring - - ackup ring - - ote). he materials and hardness of the conforms with S.. or the ** part of the kit number, specify the valve size (, ).. R- pilot valve seal is available separately. See page - for more information. Y.. ttach a plug when the vent (X) port is not used. 9 Relief flow rate l/min Y.. X ydraulic perating luid inematic Viscosity mm /s nput urrent ressure haracteristics R--*- ype {} {} 9 ressure a {kgf/cm } R Valve uilt-in ilot Relief Valve ist art o. art ame art o. art ame φ -Rc "" (back) odel o. R-- / R-X- / R-- / R-X- odel o. R--- R--- ody over oppet Sleeve Spring Spacer oppet Seat lunger Retainer lug ollar Spring andle rifice rifice late 9. ype ype ype ype - φ nput current m φ odel o. Y Y R R-X-.. {} {} {} {} {} {} uilt-in ilot Relief Valve R---S- -S- -S- -S- -S- -S- R---S- -S- -S- -S- -S- lug lug Screw in ackup ring ackup ring Screw hoke ut ilot relief valve Screw - lectro-hydraulic control valve

360 lectro-hydraulic control valve lectro-hydraulic roportional Relief and Reducing Valve --*- eatures his valve combines a compact, high-performance electro-hydraulic pilot relief valve, and a reducing and relief valve for low-pressure control of pressure within a hydraulic system in proportion to input current. Specifications xplanation of model o. nstallation imension rawings Since this valve includes a relief function, U side pressure can be maintained at a virtually fixed level, even when the valve's U side is used as reaction force. his valve also provides outstanding response as pressure drops. odel o. --*- --*- tem aximum perating ressure a{kgf/cm } {} aximum low Rate l/min :. to.{. to. }(ote ) :. to {. to } ressure ontrol Range a{kgf/cm } :. to { to } :. to {. to } Rated urrent m oil Resistance Ω R-YRU RR RU R VV --*- ( ) ysteresis % max. (ote ) to l/min. to a Weight kg.. ote). type only Rated flow rate: l/min. Value when a achi-ujikoshi special amplifier is used (with dithering).. X. X..9 ank port () esign number ressure control range,,, ominal diameter, ounting method : asket type lectro-hydraulic proportional relief and reducing valve X..9 X.. ank port () andling zir leeding o enable proper pressure control, loosen the air vent when starting up the pump in order to bleed any air from the pump, and fill the inside of the solenoid with hydraulic operating fluid. xr ort iping When configuring piping, ensure that the R port ( port for the size) is filled with operating fluid. canual ressure djusting Screw or the initial adjustment or when there is no input current to the valve due to an electrical problem or some other reason, valve pressure can be increased by rotating the manual adjustment screw clockwise (rightward). ormally, the manual adjusting screw should be rotated back fully to the left (counterclockwise) and secured with the lock nut. voad apacity he load capacity (valve U side volume) is at least l, while the load capacity is at least l. bundled ccessories (Valve ounting olts) odel o. olt Size Q'ty ightening orque m{kgf cm} - l to { to } - l to { to } nuse an operating fluid that conforms to the both of the following. il temperature: to inematic Viscosity: to mm /s. he recommended kinematic viscosity range is to mm /s.. ounding asket imensions --* U R to x φ hole to φ hole - U R - U. R U rimary pressure port () rain port (R) ir vent (ir bleeding) Secondary pressure port (U) (hex width across flats ) - φ.x counterbore φ holes anual pressure adjusting screw ock nut set screw (hex width across flats ) 9. rimary pressure port () Secondary pressure port (U) - φ.x counterbore φ holes U ir vent (ir bleeding) (hex width across flats ) anual pressure adjusting screw ock nut set screw (hex width across flats ) φx drilling φ (positioning pin hole) hole ounding asket imensions --* to x to φ hole U φ φ φx drilling (positioning pin hole) -

361 erformance urves ydraulic perating luid inematic Viscosity mm /s nput urrent ressure haracteristics - - ressure a {kgf/cm } {} -- {} - {} - {} - - {} - {} -- {} - - {} - - {} {} - nput current m nput current m ressure a {kgf/cm } ross-sectional rawing -**-*- Valve uilt-in ilot Relief Valve ist odel o anual adjustment section uilt-in ilot Relief Valve R R Seal art ist (it odel umber S-**) art o. art ame --*- --*- art umber Q'ty art umber Q'ty R-9 R-9 R-9 R-9 R-9 R-9 R-9 ote). he materials and hardness of the conforms with S.. or the ** part of the kit number, specify the valve size (, ).. R- pilot valve seal is available separately. See page - for more information. art o. 9 art ame ody iston over over Spring Screw in in hoke hoke ilot relief valve ote) oil model number - lectro-hydraulic control valve -

362 lectro-hydraulic control valve lectro-hydraulic roportional low ontrol Valve - φ his valve controls actuator speed in response to the size of input current. ressure and control oil temperature fluctuation has little effect on setting pressure, which enables high-precision tem odel o. ()S-- -()- speed control. his valve is the perfect choice for actuator acceleration and deceleration control, and remote control. S-- -()- ()S-- - S-- -()- aximum perating ressure a{kgf/cm } {} {} {} {} low Rate ontrol Range l/min. to /. to to / to to to inimum llowable Valve ressure ifferential a{kgf/cm }.{}(ote).{.}(ote).{.}(ote) {.}(ote) Reverse low Rate l/min (With check valve only) ()(ote) ysteresis % max. (ote ) max. (ote ) max. (ote ) max. (ote ) Rated urrent m oil Resistance Ω ( ) ( ) ( ) ( ) Weight kg. ote). ontrol valve inlet and outlet pressure differential required to obtain favorable pressure compensation.. Value when a achi-ujikoshi special amplifier is used (with dithering).. S- does not have a built-in check valve, but a sub plate with check valve (odel o. ---) is available for it. eatures Specifications X. over R-YRU RR W R VV xplanation of model o. ()S () set screw (hex width across flats ) - φ x counterbore φ holes ir vent (ir bleeding) (hex width across flats ) ock nut esign number anual flow rate adjusting screw odel o. ()S S ()S S utlet port (U). to l/min a uxiliary symbol : With pressure compensation piston opening adjustment screw ote: ominal diameters,, only available Rated flow rate ominal diameter:,,, ounting method : asket type ump type S: lectro-hydraulic proportional flow control valve with check valve, only S: lectro-hydraulic proportional flow control valve nstallation imension rawings andling zir leeding o enable proper pressure control, loosen the air vent when starting up the pump in order to bleed any air from the pump, and fill the inside of the solenoid with hydraulic operating fluid. he position of the air vent can change by loosening the screw and rotating the cover. xanual low Rate djusting Screw or the initial adjustment or when there is no input current to the valve due to an electrical problem or some other reason, the flow rate can be increased by rotating the manual adjustment screw clockwise (rightward). ormally, this adjusting screw should be returned completely to its original position and secured with the lock nut. crain ort ake sure that back pressure is no greater than.a {kgf/cm }, and that his port is connected directly to the fluid tank at a point that is below the oil surface. odel o. olt Size Q'ty ightening orque m{kgf cm} ()S- S- ()S- S- l l l l to { to } to { to } 9 to {9 to } to { to 9} ydraulic inlet port () X. rain port (R) ressure compensation piston opening adjustment screw vundled ccessories (Valve ounting olts) bhe loss coefficient and control valve can cause resonance when there is a great distance between the flow control valve and actuator (when the pipe internal volume is large). e sure to keep the distance between the flow control valve and actuator as small as possible, and to avoid the use of flexible hose as much as possible. nsub late See the next page for more information about sub plates. muse an operating fluid that conforms to the both of the following. il temperature: to inematic Viscosity: to mm /s. he recommended kinematic viscosity range is to mm /s.,since this valve has a built-in pressure compensation valve, changing of the inertial load (using a high inertial oil motor, etc.) can create the risk of hunching under certain conditions. ontact your sales agent before changing the inertial load. ote) Use a hex wrench that has a width across flats of to adjust the aperture adjustment screw of nominal diameter. he gasket surface dimensions comply with the S standard shown below. () S- S S- S () S- S S-** U S-** U R R -

363 Sub late S-*- - tap holes R - φ. Rc "" (back) φ x S-*- -x tap φ -Rc "" (back) - φ x - φx. counterbore φ. holes U 9. φ Rc / (back) - φ.x counterbore φ holes R U Rc / (back) φ odel o. S-X- / S-Y- / odel o. S-Y- / S-Z- S-*- -x tap - φ x.... U R - φ 9 -Rc "" (back) - φx counterbore φ holes φ Rc / (back) odel o. S-X-.. S-Y- 99 / S- ounting asket Surface imensions -x. - φ x (positioning pin hole) φ. holes - φ x φ - φ uxiliary late with heck Valve --- U R φ - φ - φ... R U undled tems (ounting olts) x l (our) lectro-hydraulic control valve.. R U - φ φ -9

364 erformance urves ydraulic perating luid inematic Viscosity mm /s nput urrent low Rate haracteristics () S- S- low rate l/min ()S-- ()S-- nput current m S-- il emperature ontrol low Rate haracteristics low rate l/min il temperature low rate l/min S-- nput current m Supply ressure a oad ressure a perating luid V Value when a achi-ujikoshi special amplifier is used (with dithering). low rate l/min () S- nput current m low rate l/min S- ressure ontrol low Rate haracteristics low rate l/min nput current m Supply ressure a perating luid V il emperature Value when a achi-ujikoshi special amplifier is used (with dithering). {} {} ressure a {kgf/cm } lectro-hydraulic control valve ross-sectional rawing S-**-*- () art o. art ame art o. art ame 9 ody over iston Sleeve lug lug Retainer Sleeve Spool uide Sleeve Retainer Retainer Sleeve iston all 9 9 ote) oil model number - anual adjustment section in Spring Spring Spring Spring Spring Spring roportional solenoid - ist of Sealing arts art o. art ame () S- S- () S- S- art umber Q'ty art umber Q'ty art umber Q'ty art umber Q'ty R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 9 R-9 9 R-9 R-9 R-9 R-9 R-9 R R-9 9 R-9 9 R-9 9 R-9 9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 R-9 Seal it umber S- S- S- S- ote) he materials and hardness of the conforms with S.

365 he load sensing function of this meter in flow control valve makes it possible to control pump discharge pressure automatically in accordance with the size of the load pressure. tem odel o. SR-- (R*)- Using this valve suppresses wasteful pump pressure rises and makes it possible to configure an energy-efficient circuit. SR-- (R*)- SR-- R*- aximum perating ressure a{kgf/cm } {} {} {} Rated low Rate l/min low Rate ontrol System ressure ontrol System (ote ) low Rate ontrol Range l/min to to to Valve ifferential ressure a{kgf/cm }.{.}(ote).{.}(ote).9{9.}(ote) ysteresis % max. (ote ) max. (ote ) max. (ote ) Repeatability % Rated urrent m oil Resistance Ω ( ) ( ) ( ) ressure ontrol Range a{kgf/cm } R-YRU RR R W R VV oad Response lectro-hydraulic roportional Relief and low ontrol Valve eatures Specifications R :. to {. to } R :. to {. to } R :. to {. to } R :. to {. to } R :. to {. to } R :. to {. to } R :. to {. to } R :. to {. to } R :. to {. to } R :. to {. to } R :. to {. to } R :. to {. to } ysteresis % max. (ote ) max. (ote ) max. (ote ) Repeatability % Rated urrent m oil Resistance Ω ( ) ( ) ( ) Weight kg ote). ndicates the pressure differential between the valve port and port.. Value when a achi-ujikoshi special amplifier is used (with dithering).. hese specifications apply to valves that include an electro-hydraulic proportional pilot relief valve (i.e. SR--R-).. he maximum adjustment pressure is a {kgf/cm } for a valve that does not include an electro-hydraulic proportional pilot relief valve. actory default is minimum output (.a max.) Set this value in accordance with the pressure of the hydraulic circuit being used. xplanation of model o. SR (**) to l/min a esign number : or, size : or size ressure control function one: Without electro-hydraulic proportional pilot relief valve (available with, ) R * : With electro-hydraulic proportional pilot relief valve Rated flow rate ominal diameter,, ounting method : asket type ump type SR: oad sensitive electro-hydraulic proportional relief and flow control valve SR-** V andling R zir leeding n order to ensure stable control, loosen the air vent and bleed air from the valve before starting operation. xanual djusting Screw or the initial adjustment or when there is no input current to the valve due to an electrical problem or some other reason, pressure or flow rate can be increased by rotating the manual adjustment screw clockwise (rightward). ormally, this adjusting screw should be returned completely to its original position and secured with the lock nut. crain ort inimum control pressure is increased by drain port back pressure, so be sure to connect the drain port directly to the fluid tank at a point that is below the oil surface. vsafety Valve Setting ressure or a safety valve without an electro-hydraulic proportional pilot relief valve, safety valve pressure is set to minimum pressure (.a max.) n the case of a safety valve with an electrohydraulic proportional pilot relief valve, the safety valve setting pressure is set to the minimum adjustment pressure plus.a. When actually using the valve, adjust in accordance with hydraulic circuit pressure. binimum Relief low Rate uring ressure ontrol Setting pressure can become unstable when the relief flow rate to the valve's port is small. ecause of this, use a relief flow rate of at leastl/min with a nominal diameter of or, and a relief flow rate of at least l/min with a nominal diameter of. nvalve ounting rientation When an electro-hydraulic proportional pilot relief valve main valve is mounted on a vertical surface with the pilot relief valve part facing downwards make it difficult to bleed air from the pilot relief valve. ecause of this, you should not use this type of mounting orientation. odel o. olt Size Q'ty ightening orque m{kgf cm} SR- l 9l to { to } SR- l l 9 to {9 to } SR- l to { to 9} mundled ccessories (Valve ounting olts),sub late See the next page for more information about sub plates..use an operating fluid that conforms to the both of the following. il temperature: to inematic Viscosity: to mm /s. he recommended kinematic viscosity range is to mm /s. Since this valve has a built-in pressure compensation valve, changing of the inertial load (using a high inertial oil motor, etc.) can create the risk of hunching under certain conditions. ontact your sales agent before changing the inertial load. R SR-**-R* V lectro-hydraulic control valve -

366 nstallation imension rawings Sub late - φ anual pressure adjusting screw Safety valve pressure adjusting screw X- set screw ir vent ock nut anual adjusting screw set screw (hex width across flats ) ir vent (ir bleeding) (hex width across flats ) Q ock nut anual adjusting screw nput port () lectro-hydraulic proportional pilot relief valve - φx counterbore φ U holes odel o. Q R S U SR SR SR S R R V ank port () Vent port (V) rain port (R) utlet port () lectro-hydraulic control valve SR-* φ.x counterbore φ hole φ Rc / (back) - φ x. R SR- ounting asket Surface imensions V - φ x (positioning pin hole) R V -Rc (back) - φ φ Rc / (back)... -x odel o. SR-Y- / SR-Z- - φ - φ -x SR-*- -Rc (back).. - φ x counterbore φ holes. R φ x odel o. SR-X- 9 SR-Y- 99 / V - φ x φ Rc / (back) φ Rc / (back) - φ 9 he gasket surface dimensions comply with the S standards shown below. SR- S SR- S

367 erformance urves nput urrent low Rate haracteristics SR- ydraulic perating luid inematic Viscosity mm /s SR- SR- low rate l/min low rate l/min low rate l/min nput current m nput current m nput current m low rate l/min il emperature ontrol low Rate haracteristics SR-**-***-, il temperature ist of Sealing arts art o. art ame oad ressure: a perating luid: V Value when a achi-ujikoshi special amplifier is used (with dithering). ross-sectional rawing 9 9 ressure ontrol low Rate haracteristics SR- SR- SR- art umber Q'ty art umber Q'ty art umber Q'ty R-9 R-9 R-9 R-9 9 R-9 9 R-9 9 R-9 R-9 R-9 R-9 R-9 R-9 9 R-9 R-9 R-9 9 R-9 9 R-9 9 R-9 9 R-9 R-9 R-9 R-9 R-9 R-9 9 Seal it umber S-R S-R S-R ote). he materials and hardness of the conforms with S.. R- seal is available separately. See page - for more information. 9 low rate l/min lectro-hydraulic roportional ilot Relief Valve Setting ressure a perating luid: V il emperature: Value when a achi-ujikoshi special amplifier is used (with dithering). {} {} oad pressure a{kgf/cm } low volume adjustment section ressure adjustment section art o. art ame art o. art ame 9 ody over () over () Sleeve Spool uide Sleeve Retainer Retainer iston Sleeve Sleeve oppet uide all in Spring 9 9 Spring Spring Spring Screw Screw Safety valve hoke roportional solenoid ote) oil model number - lectro-hydraulic control valve -

368 lectro-hydraulic control valve his valve uses a solenoid in a traditional - way solenoid valve to create a solenoid valve capable of both direction switching and highspeed control. he lineup consists of the direct system size and the pilot system,, and sizes. irection control is performed by supplying input current to one of the two tem odel o. R-YRU RR W R R VV lectro-hydraulic roportional low and irection ontrol Valve eatures Specifications S--** - proportional solenoid valves, and the size of the flow rate is controlled in accordance with the size of the input current. his type of valve can be used for remote control and shockless acceleration and deceleration control, and for simple configuration of hydraulic circuits. S--** -(**)- S-- **-(**)- aximum perating ressure a{kgf/cm } {} S-- **-(**)- Rated low Rate l/min /(ote ) /(ote ) (ote ) (ote ) aximum low Rate l/min (ote ) (ote ) (ote ) (ote ) ilot ressure a{kgf/cm } t least.{}(ote ) to l/min a ilot low Rate l/min t least (ote ) t least (ote ) t least (ote ) ort llowable ack nternal rain:. {.}.{.} ressure a{kgf/cm } xternal rain: {} Rated urrent m oil Resistance Ω ( ) ysteresis % max.(ote ) Response ime S.(ote ).(ote ).(ote ).(ote ) Weight kg. 9. ote). Value when pressure drop volume to and is Δ =.a {kgf/cm }.. ndicates maximum throughput volume value between each port.. ndicates differential between the pilot port and tank port, or drain port.. Value when. second is assumed for the response time from zero to the rated flow volume.. Value when a achi-ujikoshi special amplifier is used.. Response time is typical value for a supply pressure of a {kgf/cm } and oil temperature of (kinematic viscosity: mm /s). xplanation of model o. S (***) esign number uxiliary symbol (an be combined in alphabetic sequence.) (or,, size only) one: nternal pilot, external drain (standard) : nternal pilot, internal drain : xternal pilot, external drain : xternal pilot, internal drain : odular pilot With pressure reducing valve (---) (See ote n under andling. ) Rated flow rate (See the rated flow rate item in the specifications.) Spool type (See able.) ominal diameter:,,, andling zir leeding n order to ensure stable control, loosen the air vent and bleed air from the valve before starting operation. or details, see the user's guide. x ort iping When configuring piping, ensure that the port (pilot valve port for the,, and sizes) is filled with operating fluid. canual djusting Screw or the initial adjustment or when there is no input current to the valve due to an electrical problem or some other reason, the valve can be operated and valve pressure can be increased by rotating the manual adjustment screw clockwise (rightward). ormally, the manual adjusting screw should be rotated back fully to the left (counterclockwise). vvalve ounting rientation nstall the valve so the spool axis line is horizontal. bombining with a ressure ompensation Valve Use of the optional pressure compensation kit is recommended when higher precision flow rate control is required or in high-pressure applications. or details, see page -. nf pilot pressure (S-,, ) exceeds 9a {9kgf/cm } use a modular type port reduction valve (---) at a setting of a {kgf/cm }. mn a system that requires large brake pressure during deceleration or a system that uses a vertical cylinder, equip a counter balance valve. Use a single rod, if the rod exit is not slowed sufficiently, use a counter balance valve on the rod.,aintain hydraulic operating fluid contamination so it is at least lass 9. Use of a modular filter (bsolute: μm) is also helpful. (xample: aisei ogyo o., td. V---) (ontinued on next page) able Spool ype b ounting method : asket type ump type S: lectro-hydraulic proportional flow and directional control valve ydraulic ircuit S- S-, S- a b a b a b a b R a b R a S R R -

369 nstallation imension rawings S- - φ 9.x counterbore φ. holes anual pressure adjusting screw - φ. ir vent (ir bleeding) (hex width across flats ) X..undled ccessories (Valve ounting olts) odel o. olt Size Q'ty ightening orque m{kgf cm} S- l to { to } S- l to { to } l to { to } S- l to { to } S- l to { to } or information about sub plates, see S-Y- on page -. asket Surface imensions (S ----9) S- S.b port port port (Used in the case of external pilot port.) S.a set screw (hex Width across flats ) - φx counterbore port φ. hole R port (Used in the case of external drain.) 9.. Use an operating fluid that conforms to the both of the following. il temperature: to inematic Viscosity: to mm /s. he recommended kinematic viscosity range is to mm /s. S- ounting asket Surface imensions asket Surface ounting imensions (S---). xternal pilot port to φ. (max.) xternal drain port port X. X. port set screw (hex Width across flats ) ir vent (ir bleeding) (hex width across flats ) anual flow rate adjusting screw min... S.a S.b min. to φ (max.) to x tap S- - φ x counterbore 9 φ. hole port - φ.x counterbore port (Used in the case of external pilot.) φ hole port port S.a.. X. X Y port Y S.b R port (Used in the case of external drain.) set screw (hex Width across flats ) ir vent (ir bleeding) (hex width across flats ) anual flow rate adjusting screw 9.. uxiliary symbol : quipping a modular type pilot reduction valve increases the height by mm. he gasket surface dimensions comply with the S standards shown below. S- S ---- S- S ---- S- S ---- ote) he coil cover has an set screw. o change the air vent orientation, loosen the screw and then rotate the cover. fter bleeding air, tighten the cover and then secure it with the screw. lectro-hydraulic control valve - φ 9 -

370 S- - φ x counterbore φ. holes port port R port (Used in the case of external drain.) 9. port (Used in the case of external pilot port.).. port X. port set screw (hex Width across flats ) ir vent (ir bleeding) (hex width across flats ) anual flow rate adjusting screw S.b S.a... - φ erformance urves nput urrent low Rate haracteristics are characteristic when the or pressure drop is Δ =.a {kgf/cm }. ydraulic perating luid inematic Viscosity mm /s or ressure low Rate haracteristics, the horizontal shaft valve differential pressure indicates the pressure drop volume of the entire control valve (between,,, ), and flow rate is measured at the oil motor. lectro-hydraulic control valve nput urrent low Rate haracteristics S- S- low rate l/min low rate l/min S--**- S--**- nput current m S- S--**- low rate l/min S--**- S--**- nput current m low rate l/min S- S--**- nput current m nput current m -

371 ressure low Rate haracteristics low rate l/min S--- i=m i=m i=m i=m {} {} {} {} {} Valve differential pressure a{kgf/cm } low rate l/min S--- i=m i=m i=m {} {} {} {} {} Valve differential pressure a{kgf/cm } low rate l/min S--- i=m i=m i=m {} {} {} {} {} Valve differential pressure a{kgf/cm } S--- i=m low rate l/min ross-sectional rawings S--****- i=m i=m {} {} {} {} {} Valve differential pressure a{kgf/cm } 9 Seal art ist (it odel umber S--) art o. art ame art umber Q'ty S -(R-9) S -9(R-9) R-9 9 S -(R-9) R-9 S-(R--) R-- Seal W ote) he materials and hardness of the conforms with S. art o. 9 art ame ody Spool Retainer Spring oil Seal ote) oil model number - - lectro-hydraulic control valve

372 S--****-(**)- anual adjustment section (S-,,, ) set screw ir vent R 9 S--****-(***)- ote) he coil cover has an set screw. When changing the orientation of the air vent, loosen the screw and rotate the cover. Retighten after bleeding the air. ethods for hanging the ilot/rain System fter hange exagon Socket ead lug ilot nternal hange to port from. xternal hange from port to. rain nternal hange from to R port. xternal hange from R port to. R Y(R) X() lectro-hydraulic control valve art o. 9 art ame ody Spool over Retainer all Spring ilot spool Stopper Screw roportional solenoid ote) oil model number - R 9 ross Section - ross Section R-R ethods for hanging the ilot/rain System fter hange exagon Socket ead lug nternal Remove from ilot xternal nsert from nternal hange from to rain xternal hange from to ote) single hex head plug ( /) is required when changing to external pilot. ex ead lug: U-/ Seal art ist (it odel umber S-**) art- S- S- art ame o. art umber Q'ty art umber Q'ty R-9 R-9 R-9 9 R-9 R-9 R-9 R-9 9 R-9 9 R-9 it odel o. S S ote) he materials and hardness of the conforms with S. -

373 S--****-(***)- ilot, rain System hange 9 R R X 9 Seal art ist (it odel umber S-) art o. art ame art umber Q'ty R-9 R-9 R-9 R-9 R-9 ote) he materials and hardness of the conforms with S. X() Y(R) ross-sectional - ross-sectional R-R hanging the ilot and rain onnections fter hange exagon Socket ead lug nternal Switch from to X. ilot xternal Switch from X to. nternal Switch from to. rain xternal Switch from to. art o. 9 art ame ody Spool over Retainer all Spring Spring Screw in ilot spool Stopper roportional solenoid lectro-hydraulic control valve -9

374 ressure compensation valve kit Specifications odel o. tem - -() -() -() aximum perating ressure a{kgf/cm } {} {} {} {} ressure ompensation ifferential ressure a{kgf/cm }.{}.{}.{}.{} aximum low Rate l/min Weight kg... xplanation of model o. () uxiliary symbol (See "andling.") one : nternal pilot : xternal pilot aximum low Rate (l/min) ominal diameter,, ressure compensation valve kit andling zwhen using the pressure compensation kit, use an external pilot type for the S valve (, ). xn internal pilot type pressure compensation valve kit is used when the pilot flow rate is supplied from the port, without an eternal pilot port (p port) on the manifold. n external pilot type pressure compensation valve kit is used when there is an external pilot port (p port) on the manifold. lectro-hydraulic control valve nstallation imension rawings ressure compensation valve kit - -

375 -() -() -() ote) ounting bolts are not included with the pressure compensation kit. Use the valve mounting bolt lists on pages -9 through -9 to select mounting bolts. lectro-hydraulic control valve R R nternal pilot xternal pilot -

376 lectro-hydraulic control valve UR Y R-YRU RR RU VV odular ype lectro-hydraulic roportional Reducing Valve eatures his valve incorporates the easeofuse principles of the modular valve into an electro-hydraulic proportional reducing valve to provide reduction Specifications l/min. to a control of hydraulic system pressure in proportion to input current. his valve is perfect for a small-scale hydraulic system, such as those used odel o. tem --*- aximum perating ressure a{kgf/cm } {} aximum low Rate l/min :. to.{. to.} ressure ontrol Range a{kgf/cm } :. to { to } :. to { to } ort llowable ack ressure a{kgf/cm }.{.}max Rated urrent m oil Resistance Ω ( ) ysteresis % max. (ote ) Weight kg. ote) Value when a achi-ujikoshi special amplifier is used (with dithering). xplanation of model o. --*- esign number ressure control range:,, ontrol port: port ominal diameter ounting method : asket type odular type electro-hydraulic proportional reducing valve nstallation imension rawings - φ. hole for continuous proportional control of lathe chuck pressure. relief function ensures outstanding pressure response characteristics. andling zir leeding o enable proper pressure control, loosen the air vent when starting up the pump in order to bleed any air from the pump, and fill the inside of the solenoid with hydraulic operating fluid xanual ressure djusting Screw or the initial adjustment or when there is no input current to the valve due to an electrical problem or some other reason, valve pressure can be increased by rotating the manual adjustment screw clockwise (rightward). ormally, the manual adjusting screw should be rotated back fully to the left (counterclockwise) and secured with the lock nut. cinimum ontrol ressure Since this valve has an internal drain system, port back pressure has an effect on minimum control pressure. voad apacity ake load capacity (valve U side capacity) at least.l. buse an operating fluid that conforms to the both of the following. il temperature : to inematic Viscosity : to mm /s. he recommended kinematic viscosity range is to mm /s. anual pressure adjusting screw ir vent (ir bleeding) (hex width across flats ) ressure gauge attachment port Rc / X. X. ameplate set screw (hex Width across flats ) -

377 erformance urves ydraulic perating luid inematic Viscosity mm /s nput urrent ressure haracteristics low Rate ressure haracteristics -- nput current m {.} -- {.} -- {.9}. {.} {.} {.9}. {.} {.}. {.} {.} {.}. {.} {.}. {.} {.}. {.} {.} {.}. {.} {.}. {.}. {.} {.} {.}. {.} {.} {.}. {.} low rate l/min low rate l/min low rate l/min low rate l/min low rate l/min low rate l/min il emperature haracteristics {.} {.} {.9}. {.} {.} ressure a a {kgf/cm {kgf/cm } } ressure a {kgf/cm }... ross-sectional rawing --*- {.} {.} {.} ressure a {kgf/cm } - {.9} {.} {} {.} {.} {.} {.} ressure a a {kgf/cm {kgf/cm } } il temperature il temperature il temperature 9 Seal art ist (it odel umber S-) art o. art ame art umber Q'ty S-(R-9) R-9 R-9 R-9 ote) he materials and hardness of the conforms with S. ressure a {kgf/cm } {.} {.} ressure a a {kgf/cm {kgf/cm } } ressure a {kgf/cm } anual adjustment section art o. 9 art ame {.} {.} ody Spool Retainer lug over Seat oppet Retainer Spring Spring hoke Screw roportional solenoid ote) oil model number - lectro-hydraulic control valve -

378 lectro-hydraulic control valve UR Y R-YRU RR W R VV odular ype lectro-hydraulic roportional low ontrol Valve eatures n electro-hydraulic proportional restrictor valve and pressure compensation valve are combined into a modular configuration, available as one of two types: the meter in control -- and meter out control --. Specifications. to l/min a he pressure fluctuations have little influence on the setting flow rate making this valve perfect for electro-hydraulic proportional control of small hydraulic systems used for machine tool and high-speed shockless control, remote control, etc. odel o. tem -- - aximum perating ressure a{kgf/cm } {} low Rate ontrol Range l/min. to low Rate ontrol ort ote) Value when a achi-ujikoshi special amplifier is used (with dithering) : port -- : ort ort llowable ack ressure a{kgf/cm }. {.} max. ysteresis % max. (ote ) Response Speed S. Rated urrent m oil Resistance Ω ( ) Weight kg. xplanation of model o. esign number Rated flow rate ontrol port:, ominal diameter ounting method : asket type odular type electro-hydraulic proportional flow control valve nstallation imension rawings. - φ. hole ameplate anual flow rate adjusting screw ir vent (ir bleeding) (hex width across flats ). set screw (hex Width across flats ) X. X ' ' x ' ' -- ' ' ' ' andling zir leeding o enable proper pressure control, loosen the x air vent when starting up the pump in order to bleed any air from the pump, and fill the inside of the solenoid with hydraulic operating fluid. he position of the air vent can change by loosening the lock screw and rotating the cover. xanual flow rate adjusting screw or the initial adjustment or when there is no input current to the valve due to an electrical problem or some other reason, the flow rate can be adjusted by rotating the manual adjustment screw. Rotate clockwise (rightward) to increase flow rate. ormally, this adjusting screw should be returned completely to its original position and secured with the lock nut. c ort ack ressure Since this valve has an internal drain system, make sure that valve port back pressure is no greater than.a {.kgf/cm }. vuse an operating fluid that conforms to the both of the following. il temperature: to inematic Viscosity: to mm /s. he recommended kinematic viscosity range is to mm /s. b late rientation q he port nearest the nameplate surface is the port. w he port with a mounting pitch width of (narrow pitch width) is the port. e he cutout on the plate is on the port side. - φ. hole anual flow rate adjusting screw. ir vent (ir bleeding) (hex width across flats ). X. X. ameplate.. set screw (hex Width across flats ).. -

379 erformance urves ydraulic perating luid inematic Viscosity mm /s nput urrent - low Rate haracteristics low rate l/min nput current m ressure - low Rate haracteristics low rate l/min {} {} {} {} ressure a {kgf/cm } il emperature haracteristics low rate l/min il temperature ross-sectional rawing -- 9 art o. 9 9 art ame ody ody Spool iston Retainer Retainer lug lug lug Spring Spring Spring late Screw Screw roportional solenoid ote) oil model number - lectro-hydraulic control valve 9 Seal art ist (it odel umber S-) art o. art ame art umber Q'ty S-(R-9) R-9 R R-9 R-9 R-9 ote) he materials and hardness of the conforms with S. anual adjustment section -

380 WR R SRS R R- YRU RR VV RV ower mplifier Series for lectrohydraulic roportional Valve rive verview his special amplifier is for driving electrohydraulic proportional pressure control valves, electro-hydraulic proportional flow control valves, and electro-hydraulic proportional direction control valves. t comes in a choice of two different types: an amp type and a controller type. asically, the amp type converts to V range command voltage to a current of in the range of to 9m, which is then supplied to the control valve. he control type performs multi-stage control of output current in accordance with the - signal of external contacts. ower mplifier ypes and unctions ype odel o. rive ontrol Valve unctions mp ype --- ressure ontrol Valves low ontrol Valves irection ontrol Valves hree functions: open loop control, feedback control, and acceleration/ deceleration control. ontroller ype --- Same as above. uilt-in command voltage setting units (potentiometers) Setting unit selection is performed by relay contacts, limit switches, timer contacts, etc. Selecting a ower mplifier peration ype Setting Unit ype rive mplifier ne-oint Setting anual setting by rotating a knob. Ω knob control or to V voltage lectro-hydraulic control valve ontrol ethod Specifications andling zower supply voltage can be either V or V. xwhen selecting a location, avoid areas subject to high temperatures and high ulti-stage Setting Selection of multiple setting values omputer control ovement by particular waveform ulti-stage control cceleration/deceleration control odel o. tem unction mp ype (losed oop) ontroller ype umber of nputs inputs umber of hannels aximum utput urrent 9m (Ω solenoid) 9m (Ω solenoid) nput voltage to +V eedback Voltage to +V nput mpedance t least kω xternally Set Variable Resistance kω Zero djust(u) to 9m to 9m ime ag (-U, W). to sec ain djustment 9m 9m 9m to to () V.V % channel setting xternal power supply +V(m) xternal ontact Resistance Ω max. when closed ither (nternal, semi-fixed) hannel ime ag () ower Supply Voltage evel: to mp-p evel: to mp-p requency: to z requency: to z. to seconds xternally variable,,, V (±%)/z,,, V (±%)/z ower onsumption V V llowable mbient emperature to to emperature rift.m/ max..m/ max. Weight.kg.kg ulti-knob control and selector relays esign according to device specifications to V output Setting unit sequence circuit configured of relays, timers, etc. nput amplifier, input ounting method: anel type lectro-hydraulic proportional valve amplifier esign number uxiliary symbol (Up to six characters can be combined in alphabetic sequence.) (uxiliary Symbol ist) -m input (R, R) -V input (R, R) djustment by -rotation potentiometer oisture resistance -U,-W.-sec.-sec -sec esign number uxiliary symbol (Up to five characters can be combined in alphabetic sequence.) (uxiliary Symbol ist) xternally variable channel time lag, channel djustment by -rotation potentiometer oisture resistance -U,-W.-sec ounting method: anel type lectro-hydraulic proportional valve controller.-sec -sec ote: -U, W, and R all become.- sec when there is no signal for,, and. humidity, and select an area where there is little vibration and dust. cuse shielded wire for the analog signal and valve output signal wires. xplanation of model o. Series Series vwhen performing valve output signal line - switching with a relay, connect a surge absorber or varistor parallel with the relay. -

381 ower mplifier Series for lectrohydraulic roportional Valve rive --- o. ame o. ame R, nput utput terminal to R, nput 9 VV valve R, delay input, case ground R, delay input, feedback input, V, external power supply, V, signal land pplication xamples qulti-stage Setting Using ultiple otentiometers S S S () Valve coil k Ω S S S (R) () 9 utput current t () Wiring the amp and external potentiometer potentiometer has three terminals numbered,, and. () Setting the adjusting knobs erminals (R), (R), and (R) can also be used in place of terminal. n R-U and R-W acceleration/deceleration timer can also be used in the case of terminal (R) and terminal (R). n this case, the settings of the knobs on the front panel of the amp are normally as shown in the illustration below. he manual set- R -W R -U RR U ting unit provides output current control in the range of to 9m as it is rotated from full counterclockwise to full clockwise. V V ither one can be used. Wiring mp terminal (V) otentiometer terminal mp terminal (V) otentiometer terminal mp terminal (R) otentiometer terminal With this wiring, rotating the potentiometer clockwise causes the output current to increase. q f an output in the range of to m is desired even while the manual setting unit is rotated fully clockwise, restrict the setting of RR- to. w When the level deceleration ratio and other factors limit the effective use of the manual setting unit to only of the, use to adjust the output current to 9m. RR RR ontact S S S ote). range of Ω to Ω is recommended for external knobs and potentiometers.. n order to prevent current loss across terminals and, insert relays between terminal and the potentiometers and terminal and the potentiometers.. o not enable more than one potentiometer at the same time. () he following is available for the external setting knob. odel o. ZS φ φ t. lectro-hydraulic control valve -

382 lectro-hydraulic control valve () cceleration time adjustment (R-U) and deceleration time adjustment (R-W) R R V V R -W nput signal utput current weedback ontrol. Sensor 9m Sensor amplifier R -U eirection ontrol Valve (S) rive ---,--- Surge suppressor S R Z - 9 Ra Ra to +V to +V ( to +V) Varistor Varistor i o V --- () (R) () () () V R -W R -U V 9 ither one can be used. RR igital multi-meter, etc. Sa Sb t t Valve coil U his circuit creates a fixed acceleration time lag in accordance with the voltage that added the input signal to terminals and (R, R). he time lag is adjustable in the range of. to seconds, as standard. s shown in the diagram to the left, even when R-U is set to seconds, the change to V during stepped input from to V and stepped input from to V takes. seconds, which is half the set time. With the wiring shown to the left, output current is increased or decreased in accordance with the feedback signal of the sensor, which regulates pressure or the flow rate. ote) Using terminal (R) and terminal (R) in place of terminal (R) enables -U and -W, which allows feedback control without overshooting or undershooting, even when input signal voltage is stepped. djustment ethod qnitially, set to as shown in the illustration to the left, and check to see if open look control is possible. wext, set to and to, and input a feedback signal. radually rotate clockwise and increase gain. Set the feedback gain to the level that is immediately before the point where vibration is generated in the control system. (, ) ote). o measure current, measure the voltage at terminal 9, using terminal as reference. he voltage across the.ω current detection resistor at is.v. Use a measurement device with an input impedance of at least Ω.. Switch the terminal line using a relay. ake sure that both relays are not on at the same time.. o absorb surge voltage, include V varistors in parallel with the relay contacts. Recommended Varistor VS anasonic RZV. or relays, use R Y type power relays or the equivalent.. oo much noise in the V or V power supply line can result in unstable output current. f this happens, equip a surge absorber on the power supply. Recommended odel S R Z- V -

383 ower mplifier Series for lectrohydraulic roportional Valve rive --- o. ame o. ame nput command contact utput terminal to valve 9 VV, case ground V ommon input contact V ote) When external contacts S through S are closed, use a non-voltage contact no greater than Ω. pplication i V close V close V close V (m) close V close V close ither djustment ethod (ither is set to load mp-p, z.) () --- () --- t s are provided to indicate channel selection. he knob of each channel adjusts the time until the selected channel's level is reached, as shown to the left. ake sure that the lap time (or time when channel is not selected) when changing the channel selection is msec maximum. Use independent external contacts. ven when external contacts are superimposed, output is not the sum of each channel, so use of superimposed external contacts is not supported. ote) When replacing a esign umber controller with a esign umber controller, you must also change the sequence from superimposed external contacts to independent. Removing the left side panel when viewed from the front reveals the configuration shown in the illustrations to the left. qf piping or other items vibrate in response to the dither, raise the dither frequency by rotating the trimmer clockwise. wwhen repeat stability is poor and the hysteresis is large, increase the dither level by rotating clockwise. f this does not resolve the problem, lower the dither frequency by rotating the trimmer counterclockwise. ewhen repeatability is poor with the S valve or S valve due to insufficient air bleeding within the guide, raise the dither frequency by rotating the tripper clockwise, as described in q. -9 lectro-hydraulic control valve

384 lectro-hydraulic control valve S Y WR R SRS R R-YRU RR VV RV Small ype ower mplifier Series for lectro-hydraulic roportional Valve rive his power amplifier provides high efficiency and reliability in a compact configuration. ightweight, compact design he configuration of this amplifier is / the weight and / the volume of existing models. igh efficiency W control system enables a highly efficient design with little heat generation. igh reliability ll functions are integrated onto a single circuit board for a highly reliable design with no internal wiring. odel o. tem W-- --(Z)-- --W(Z)-- unction mp ype (pen oop) mp ype (pen oop) mp ype (pen oop) mp ype (pen oop) umber of nputs inputs inputs inputs inputs rive Solenoid S a S a, S b S a S a,s b aximum utput urrent 9m (Ω solenoid) 9m (Ω solenoid) 9m (Ω solenoid) 9m (Ω solenoid) nput voltage to +V to +V to +V to +V nput mpedance kω kω kω kω xternally Set Variable Resistance kω kω kω kω Zero djust to 9m to 9m to 9m to 9m ain djustment 9m 9m 9m 9m to to to to V input V input V input V input xternal power supply +V (m) andling zwhen selecting a location, avoid areas subject to high temperatures and high humidity, and select an area WZ where there is little vibration and dust. xuse shielded wire for the analog signal and valve output signal wires. esign number +V (m) V (m) Voltage symbol :,V±%(/z) : V +V (m) uxiliary symbol : pen loop with one output (S a) W : pen loop with two outputs (S a, S b) Z : With case (an be used with voltage symbol only.) +V (m) V (m) ither requency Variable: to z Variable: to z Variable: to z Variable: to z ime ag ower Supply Voltage nternally Variable:. to seconds V±% (/z) nternally Variable:. to seconds V±% (/z) nternally Variable:. to seconds V ( to V) nternally Variable:. to seconds V ( to V) ower onsumption V V V V llowable mbient emperature to to to to emperature rift.m/ max..m/ max..m/ max..m/ max. Weight.kg.kg riven Valve eatures Specifications ressure ontrol Valves low ontrol Valves xplanation of model o. irection ontrol Valve.kg (.kg with Z) ressure ontrol Valves low ontrol Valves.kg (.kg with Z) irection ontrol Valve che brightness of the changes in accordance with the size of the output current. ype lassification, input Small type power amplifier -

385 nstallation imension rawings ---- o. ame o. ame nput signal terminal utput terminal to nput signal terminal valve S a xternal power supply 9 V With -- (Z), current is supplied to the control valve in proportion to input signal voltage in the range of to +V. o measure current, measure the voltage at terminal, using terminal as reference. he voltage across the.ω current detection resistor at is.v. nput impedance of the measurement device should be at least Ω. With --W (Z), the polarity of the input voltage is determined, and current is supplied to Sa when it's positive and to Sb when it is negative. --W-- o. ame o. ame nput signal terminal utput terminal to nput signal terminal valve S a xternal power supply utput terminal to xternal power supply 9 valve S b V U and for S a and S b are enabled when each of their input signal voltage is ±.V or more. lectro-hydraulic control valve o measure current, measure the voltage at Sa terminal and Sb terminal, using terminal as reference. he voltage across the.ω current detection resistor at is.v. nput impedance of the measurement device should be at least Ω. -

386 --(Z)-- o. ame o. ame nput signal terminal utput terminal to nput signal terminal valve S a xternal power supply 9 + V to φ. hole lectro-hydraulic control valve --W(Z) o. ame o. ame nput signal terminal utput terminal to nput signal terminal valve S a xternal power supply utput terminal to xternal power supply valve S b 9 + V --Z-- --W-- --WZ-- -

387 ote) Use a V switching regulator with a capacitance of at least. eneral recautions zeasuring current flow in the solenoid coil s shown in the illustration below, disconnect the line supplying current to the solenoid coil, and then insert a rated current meter or measure voltage across terminals and. Solenoid coil resistance is Ω, so the relationship between voltage and current is as shown below. ote, however, that these values are not exact, because coil resistance changes with xample anufacturer odel o. apacity S R- V. -R V. S- WS- V. temperature. easurements across terminals and can be performed the same as shown in the illustration below. xever energize only the solenoid coil. he amp will not operate correctly if the iron coil is not inserted. cor connection between the amp/controller and solenoid coil, use a -conductor shielded wire with a conductor nominal cross-section area of.mm. ype V (Rated Voltage: V vinyl cab tire cord. Wiring between the command voltage generator and amplifier should be V.m -conductor wire. Use a shield that conforms to S lass grounding. f the ground line is unstable, do not connect the shield to anything. Voltage (V) urrent (m) + rated Red lack Sa ester ower mplifier peration and erminology V range qzero djust (U) his knob sets the lower limit of the operating pressure and flow rate. Rotating it clockwise increases the output current. his knob is also used for manual control while checking valve operation. wain djust () his knob adjusts output current in proportion to input signal voltage or the channel level knob rotation angle. Rotating it clockwise increases gain. ehannel ime ag () his knob adjusts the time it takes for a channel selected by external contact to reach its channel level. Rotating it clockwise increases the time leg. utput current m 9 rither ither plays a role in improving control valve hysteresis, response, stability, etc. utput current m 9 mp-p z utput current level lectro-hydraulic control valve utput current m (WZ)- - ain ax. ain high ain in. nput voltage (deviation voltage) (V) utput current m 9 ain ax. ain high ain in. V volume rotation angle (%) utput current m 9 ain ax. ain high ain in. nput voltage (V) -

388 lectro-hydraulic control valve S Y WR R SRS W U-U R R-YRU RR VV RV Small ype ulti-function ower mplifier eatures his compact, multi-function power amplifier uses advanced hybrid integrated circuits (). ompact design ess than half the size of previous models igh reliability ircuit board configuration eliminates the need for wiring. ulti-function Simultaneous driving of two valves ontroller with built-in amplifier (--WZ--) ither frequency selection function (rom esigns, ) Specifications odel o. tem --WZ-- --WZ-- unction mp ype mp/ontroller ype nput type inputs ontacts, inputs, inputs aximum utput urrent 9m (Ω solenoid) 9m (Ω solenoid) nput voltage to + V to + V nput mpedance kω kω xternally Set Variable Resistance kω kω rive Solenoid S a S b S S Zero djust (U) to 9m to 9m ain djust () to 9m to 9m.V.V xternal power supply + V (m) - V (m) + V (m) ime ag () to sec to sec ither requency (R) to z to z ower Supply Voltage V ( to V) V ( to V) ower onsumption V V llowable mbient emperature to to emperature rift.m/ max..m/ max. Weight.kg.kg riven Valve ressure, flow, direction control valves ressure, flow, direction control valves andling z When selecting a location, avoid areas subject to high temperatures and high humidity, and select an area where there is little vibration and dust. x Use shielded wire for the analog signal and valve output signal wires. See page - for general precautions. c he brightness of the changes in accordance with the size of the output current. -

389 xplanation of model o. () mp ype W Z ( ) esign number Voltage symbol : V uxiliary symbol Z: With case one -rotation adjustor knob -rotation adjustor knob (-rotation trimmer for dither) W: -direction valve drive possible : Standard type umber of inputs : input : mp input : anel type : mp type : Small type, multi-function power amp () mp/ontroller ype W Z ( ) esign number Voltage symbol : V uxiliary symbol (Up to four characters can be combined in alphabetic sequence.) one -rotation adjustor knob Variable R Range:. to seconds -rotation trimmer for controller block V,, only -rotation for amp block, U, S, only -rotation trimmer for controller/amp block V-,,,, U, S, Variable R Range:. to seconds Variable R Range: to seconds. Z: With case ote),, designs all have -rotation trimmer. W: -direction valve drive possible : With acceleration timer umber of inputs : input : ontroller type contact input : anel type : ontroller type : Small type, multi-function power amp lectro-hydraulic control valve -

390 nstallation imension rawings --WZ-- o. ame o. ame nput signal terminal - nput signal terminal + V 9 utput terminal to valve xternal power supply S b nput signal terminal utput terminal to valve xternal power supply S a lock iagram onstant voltage source Sa (Ω) Sb (Ω) urrent is supplied to S a when input signal voltage polarity is positive, and to S b when negative. ither S a or S b can be driven at any one time. ush-pull drive is also supported. o measure current, measure the voltage at S a terminal and S b terminal 9, using terminal as reference. he voltage across the.ω current detection resistor at is.v. Use a measurement device with an input impedance of at least Ω. o use S a only, connect terminal of the knob to amp terminal, use an input voltage range of to V. (R, S only) lectro-hydraulic control valve pplication xamples z djusting ush-pull rive for a Special roportional Valve (Special Specification irection ontrol Valve) a)verlap ype roportional Valve S-- - m(enter urrent) b)zero-ap ype roportional Valve S-- - m(enter urrent) s shown in the figure to the left, push-pull control aims at increasing response at the zero point by simultaneously energizing both solenoids. djustment rocedure ) U,, S, Rotate all seven knobs counterclockwise as far as they will go. ) Without any connection between terminals q and w, use the - S knob to simultaneously energize S a and S b as follows. S a m (m) S b m (m) ) ext, apply +V to terminal q (connecting q and r), and set the S a knob to the following. S a m S b m or the S b current here, S b should be fully rotated counterclockwise, and its setting should not be changed. ) pply V to terminal q (connecting q and y), and set the S b knob for the following. S a m S b m his completes the setting procedure. he three and U knobs should be left rotated fully counterclockwise. here is no need to change their settings. --WZ-- is configured with a feedback system, so it does not have a feedback gain adjustment function. n this case, use --WZ-- in combination with the ---*- servo amp. -

391 --WZ-- o. ame o. ame select terminal lock iagram nput signal terminal xternal power supply select terminal 9 - select terminal + V select terminal utput terminal to nput signal terminal valve S select terminal utput terminal to select terminal valve S S S ual simultaneous output to S and S is supported. o measure current, measure the voltage at S a terminal and S b terminal, using terminal as reference. he voltage across the.ω current detection resistor at is.v. Use a measurement device with an input impedance of at least Ω. pplication xamples ) Switch osition + ) Switch osition + ) Switch osition + Volume (Ω) low control valve input ressure control valve input low control valve low control valve ressure control valve low control valve ressure control valve Simultaneous control using two flow control valves (-speed) s shown in the diagram to the left, flow control speed is controlled with V when and are turned on at the same time. ext, flow control valve speed is controlled by V, and simultaneous control is possible by adjusting flow control valve speed in the same way. -speed synchronous control is possible by grouping through and thorough. ressure control valve -pressure control s shown in the diagram to the left, this amplifier can be use as a -channel controller for a single pressure control valve. inimum pressure at this time is in accordance with the setting of the S knob. he U knob cannot be used to configure settings unless a channel is selected. -output amplifier for simultaneous control of load-sensitive system pressure and flow rate s shown in the diagram to the left, to +V input and channel or input are added together and output to the flow control valve. ikewise, to +V and or input is added together and output to the pressure control valve. lectro-hydraulic control valve -

392 RSS RR W R R VV igh-response proportional flow control valve eatures to l/min a requency response equivalent to an electro-hydraulic servo valve. irect spool by a high-output proportional solenoid. ifferential transformer for accurate spool positioning with minor feedback. Recovery of all port block positions following amp power off or wiring disconnection (ailsafe unction). Steel spool and spring for long life. lectro-hydraulic control valve Specifications odel o. S-- S-- S-- tem aximum perating ressure,, a{kgf/cm } {} ort llowable ack ressure a{kgf/cm }. {.} max. Rated low Rate l/min (Valve pressure drop a{kgf/cm }) aximum low Rate l/min imit Valve ressure rop a{kgf/cm } {} {} {} ysteresis %. max. Step Response ms ( % isplacement) max. (ote ) requency Response z (9 hase elay ±% isplacement) t least (ote ) enter Supply ressure.% max/s (Δp=a{kgf/cm }) rift il emperature.% max/s (Δt= ) iltration lass S9 max. perating il emperature Range (Recommended il emperature Range ) to ( to ) Water and ust Resistance Weight kg. ote). Step response is typical value for a supply pressure of a {kgf/cm } and oil temperature of (kinematic viscosity: mm /s). xplanation of model o. S esign number enter valve position lap value :.% max. (zero lap) Rated flow rate :,, l/min (Value pressure drop a {kgf/cm }) Relieve position flow path : (all ports blocked) peration method: (spring offset type) ounting method : asket type ominal diameter : ( size) andling z he amp and valve are adjusted to match at the factory, so be sure to use items that have the same o. x he differential transformer zero adjust screw and valve zero adjust screw are adjusted and fixed at the factory. ecause of this, you should not touch the screws (sealed cap nuts). cnstall the valve so the spool axis line is horizontal. v n the case of -port applications and for the direction that throughflow is most common, use of the following flow is recommended. limit differential pressure is greater than that of. b e sure to perform sufficient flushing before a test run. n Use steel piping for this valve and the main actuator, and keep piping as short as possible. m here is no air bleeding., ineral oil hydraulic operating fluid is standard. Use an R& type and wearresistant type of S V,, or or equivalent.. Use an operating fluid that conforms to the both of the following. inematic viscosity : to mm /s il temperature : to iltration aintain hydraulic operating fluid contamination so it is at least S lass 9. lectrical wiring between the amp and valve should be no longer than meters. or the solenoid valve use V mm -conductor shielded wire, and for the differential transformer use V. mm -conductor shielded wire. fter disassembling the valve, be sure to fill the inside of the guide with operating fluid before reassembling. undled ccessories (Valve ounting olts) x l, (four) ightening orque : to m{ to kgf cm} igh-response proportional flow control valve -

393 nstallation imension rawings perational rinciple φ 9.x. counterbore φ. cutout Resistance spring Spool roportional solenoid ifferential transformer urrent - nput voltage V + S connector for transformer connection Valve zero point adjusting screw ifferential transformer zero point adjusting screw. he gasket mounting method conforms to S erformance urves low rate l /min S--- nput Voltage-low Rate haracteristics (Valve pressure drop a {kgf/cm }) Spool monitor low rate - - nput voltage V Valve ifferential ressure-low Rate haracteristics low rate l /min peration limit valve differential pressure a (kgf/cm ) ±V ±V ±V ±V ±V Spool monitor voltage low rate l /min S--- nput Voltage-low Rate haracteristics (Valve pressure drop a {kgf/cm }) Spool monitor low rate - - nput voltage V a(kgf/cm ) Valve ifferential ressure-low Rate haracteristics low rate l /min peration limit valve differential pressure ±V ±V ±V ±V ±V Spool monitor voltage Valve ressure rop and Rated low Rate Valve ressure rop(δ X) = S- - S : Valve supply pressure : oad pressure : ort back pressure he rated flow rate is the value when the above valve pressure drop is a {kgf/cm }. Valve ressure rop and ontrol low Rate he following is the maximum control flow rate when the size of the obtained valve pressure drop is Q x = Q x rate Qrate : Rated flow rate X= S- - alculation example When S--- is used under the following conditions: S=a{kgf/cm } =a{kgf/cm } =a{kgf/cm } aximum control flow rate Q X is as shown below: S Qx = Qrate = = l / min lectro-hydraulic control valve Valve differential pressure a Valve differential pressure a ote) ±V input amp factory default data. Rotating the trimmer clockwise (rightward) increases the flow rate by up to %. -9

394 lectro-hydraulic control valve RSS RR W R R VV igh-response proportional flow control valve S-,, eatures Specifications to l/min,a ain spool minor feedback for greatly increased hysteresis and repeatability. Response characteristics suitable to z and high precision acceleration control. Recovery of center position following amp power off or wiring disconnection (ailsafe unction). Single rod cylinder spool available for easy use. uilt-in pilot pressure reducing valve for stable operation. odel o. S-- S-- S-- tem *****-(*)- ******-(*)- ******-(*)-,, xternal ilot {} {} {} aximum perating orts nternal ilo {} {} {} ressure ort {} {} {} a{kgf/cm } p ort {} {} {} inimum ilot ressure a{kgf/cm }. {}. {}. {} Rated low Rate l/min (Rated stroke, pressure drop of a {kgf/cm } flow rate) aximum low Rate l/min ilot ressure Reducing Valve Set ressure a{kgf/cm }. {}. {}. {} ysteresis %. max.. max.. max. Step Response ms ( % displacement) (ote) (ote) (ote) requency Response z (±% input, 9 phase delay) (ote) (ote) (ote) ilot low Rate l/min Y (R), (R) allowable back pressure a{kgf/cm }. {}. {}. {} Weight kg ote). Step response is typical value for a supply pressure of a {kgf/cm } and oil temperature of (kinematic viscosity: mm /s). xplanation of model o. S S (*) S : = : (ormal) : = : S : = :. Single rod/cylinder : =. : Rated flow rate ( See the rated flow rate item in the specifications.) ndicated through flow rate at rated stroke when pressure drop to is Δ=.a{kgf/cm }. hrough flow rate for,, pressure drop at.a{kgf/cm } is determined by contraction ratio. enter valve position flow path peration method esign number uxiliary symbol one: nternal pilot, external drain : xternal pilot, external drain ontraction ratio : ressure center S S % enter osition % enter osition andling z ir leeding n order to ensure stable control, loosen the air vent and bleed air from the valve before starting operation. x Y (R), (R) orts onnect ports Y (R) and (R) directly to the fluid tank so they are always supplied with operating fluid, in order to keep back pressure no greater than.a {kgf/cm }. c (R) ort Since this valve is a pressure center type, and have an (R) port. e sure to connect this port directly to the fluid tank. has a Y (R) port only, and this is connected internally to. v Valve ounting rientation nstall the valve so the spool axis line is horizontal. b iltration aintain hydraulic operating fluid contamination so it is at least S lass 9. n he amp and valve are adjusted to match at the factory, so be sure to use items that have the same o. m il-based operating fluid is standard. Use an R& type and wear-resistant type of S V,, or or equivalent., Use an operating fluid that conforms to the both of the following. inematic viscosity: to mm /s il temperature: to. lectrical wiring between the amp and valve should be no longer than meters. or the solenoid valve use V mm -conductor shielded wire, and for the differential transformer use V. mm -conductor shielded wire. undled ccessories (Valve ounting olts) With and, providing command in the range of to +V to the amp's R input produces a flow of. With, flow is. odel o. olt Size Q'ty ightening orque m {kgf cm} S- l to { to } l to { to } S- l to { to } S- l to { to } or and, connect the ports and actuator to achieve a working of. or, connect for a working of. ontact your agent for a contraction ratio S with the size. ominal diameter,, ounting method : asket type S: igh response proportional flow valve -

395 nstallation imension rawings S- ir vent (ir bleeding) (hex width across flats ) X() Y(R) S Symbol. 9.9 X () Y (R). S V S ir vent (ir bleeding) (hex width across flats ).. X 9.. X Y Y X () S V Y (R) S- 9 - φ 9 (R) X() 9.. Y(R) ir vent (ir bleeding) (hex width across flats ) Y X () (R) V S lectro-hydraulic control valve 9 Y (R). asket Surface imensions - φ (R) ote: stopper plug is needed for the area if the pilot is external. or, see S- gasket surface dimensions, and for and, see ss-, -**- gasket surface dimensions. Y (R) and (R) are required. asket surface dimensions conform to the following. : S ---- : S ---- : S

396 WR R R RSS RR W R R VV igh-speed Response roportional ontrol Valve mplifier Series eatures oil current feedback and spool position feedback amplification for stable, high-speed spool positioning. uilt in check connector S simplifies maintenance. single printed circuit board allows separation of connectors and the terminal box. uilt-in differential transformer disconnect detection circuit drops coil current to m when disconnection occurs. Servo ready and servo interfaces. ower supply and current control switching system for improved efficiency. lectro-hydraulic control valve Specifications ower Supply Voltage ower Supply apacity V (V to V ) ip oise: mvp-p max. t leas. (S R- equivalent switching regulator) mbient emperature to mbient humidity to % R (non-condensation) nput Signal Voltage to ±V or to ±V nput mpedance kω ower onsumption. maximum consumption current at V Weight.9kg xternal Supply Voltage +V : (m maximum supply possible) V : (m maximum supply possible) rive oil.ω; max.. or Ω; max.. Spool isplacement easurement ifferential transformer (V) Servo pplication of V during valve operation Ready uring normal valve operation: Spool displacement monitor to ±V nstallation imension rawings xplanation of model o. lock iagram umber of input terminals : inputs nput type : voltage ounting method : anel type mbient humidity : mp nput voltage to ±V to ±V esign number mp power supply voltage symbol : V river valve size : ominal diameter : ominal diameter : ominal diameter : ominal diameter igh-response proportional valve digital device ote) Select an amp that matches the valve size. loating V output (isolated input and output) power supply oad required is V,. ote) Since,, and are pilot operation types, there is an V on the main spool, but connection is identical. -

397 () xample pplication in S- ositioning ircuit his is an S- positioning circuit using a sequencer. roportional control is performed by the positioning unit, while integral compensation is performed by the counter unit and / unit. he result is high-precision positioning. U unit (USU) nput unit utput unit ounter unit (S) ositioning unit (S) / unit (SV) RS- ulse distributor roportional compensation ntegrated compensation amp S valve type scale unit R () xample pplication in S-,, olding achine old lamping ircuit his hydraulic circuit is a basic application example. he actual application hydraulic circuit would require modification to match the machinery and to provide the necessary functions. ut off flow to the cylinder with the safety door valve and interlock solenoid valve, in accordance with the logic valve. S--***S-- lectro-hydraulic control valve -

398 WR R R R- YRU SRV VV RV lectro-hydraulic Servo Valve river Servo mplifier eatures qompact design. wapable of driving virtually all - servo valve series. e ower supply support for V in addition to V and V. lectro-hydraulic control valve Specifications tem escription umber of nputs (R-,-,-,-) nput Voltage ommand Signal/ ±V Range eedback Signal nput mpedance kω ain djust () to X/ to X switchable Zero djust (U) to ±% requency haracteristics d attenuation at z ither to z variable (actory default; z) ower Supply Voltage,,, V (±%) /z ower onsumption V xternal power supply llowable mbient emperature emperature rift Weight Servo Valve oil rive urrent +V (m) V (m) to μv/ max. kg ± m(ω) ± m( Ω) ±m( Ω) ±m( Ω) t is possible to switch the output voltage ±V for the four types noted above. Resistance values in parentheses indicate resistance in the case of parallel wiring of the servo valve coil. o. ame o. ame R- input ontrol current -- feedback input utput terminal -- feedback input ontrol voltage -- feedback input utput terminal signal land + V case ground external power supply, V signal land 9 external power supply 9, V / monitor in xplanation of model o. ** esign number ower supply voltage: o signal:,,, V ±% : V utput : ±m : ±m : ±m : ±m : ±V umber of inputs ounting method: anel type : inputs ower amplifier for - servo valve drive ote: V only can be used in the case of power supply voltage signal. V, V cannot be used. -

399 Servo Valve and pplicable Servo mplifier odels Wiring iagram Servo odel umber -,,,, Series Rated utput pplicable Servo mplifier odel umber - Series ±m (parallel wiring) -- - Series enter low l/min Rated odels ±m(parallel wiring) -- --, --, --, --, --, --, --, --, --, --, --, -- --, -, --, (ain Valve osition etector or m uilt n) - ±m(parallel wiring) ±m(parallel wiring) ±V -- R Servo valve coil -,, Series R V V V ny one can be used. V V U to ±V -*Series Servo valve osition detector ( ) amp built-in lectro-hydraulic control valve V V V V V ny one can be used. -

400 YR- VV omposite Valve Series ogic Valve verview to l/min,a YR- composite valves revolutionize the structure of hydraulic control valves in a way that makes it possible to control multiple functions with a single valve. Unlike contemporary valves that limit each valve to a single function, the YR- ressure control valve control valve allows a tremendous reduction in overall equipment size and energy savings as well. n addition, a poppet structure delivers high response, low leakage, and outstanding power. hese valves are made possible by ressure control valve low control valve fully applying technology of the proven cartridge logic valve. gasket type and flange type logic valve series can be used with total confidence in a wide variety of hydraulic applications. (or details, see catalog number 9-. ) ydro-logic valve ulti-function in a compact design Unlike single-valve systems where each valve performs a particular function, the hydro-logic valve provides multiple functions in a very compact configuration. he more complex a circuit is, the greater the advantages of using this type of valve. eatures q ulti-function composite valve to meet high-level hydraulic needs single multi-function composite valve controls direction, pressure and flow. w akes hydraulic equipment more compact Since a single valve performs multiple functions, the number of required valves is reduced, which simplifies the hydraulic circuit and makes the overall design of the equipment more compact. e ast switching with less shock poppet valve is used for the basic structure, which eliminates overrun and reduces mass for very fast switching. restrictor valve built into the pilot line makes it possible ain Specifications irection control valve to freely set the open/close timing of each port and easily reduce shock. r ess internal leaking than spool type valves oppet seal construction minimizes seat leaks, while a long slide length ensures much less internal leaking than a spool type valve. t ramatically reduced hydraulic equipment production cost fewer valves not only means more compact designs, it also translates into much lower production costs. y imensions conform to international S standards he, sizes gasket type valve mounting dimensions conform to S standards for easy interchangeability with existing valves (except for -direction valves). u Simple mounting, without modification Unlike cartridge type valves that require drilling of holes in the block, gasket installation and flange connection of this type of valve is quick and simple. i wide selection of valve models n extensive selection of models includes Size -direction valves and size -direction and -direction valves to meet a wide range of needs. -irection Valves -irection Valves -irection Valves ipe iameter aximum Working ressure aximum low Rate asket ounting lange ounting (ominal iameter) a{kgf/cm } l/min (S)- Y(S)- (S)- / (*) (S)- Y(S)- (S)- (S)- / {} ({})ote (*) (S)- (S)- (*) (S)- () {} ote). low rates marked with an asterisk (*) apply to -direction model number * (pressure reducing valve).. he maximum operating pressure for -direction valves is a {kgf/cm }. ontact your agent for details. ydro-logic valve -

401 ain ircuit Symbol xamples unction Symbol R odel o. (S) *** R** ** unction Symbol odel o. (S) *** ** unction ouble pump pressure control, with unloading circuit unction peration switching basic circuit Size Weight kg 9 Size Weight kg 9 unction Symbol Y odel o. (S) *** Y ** unction Symbol XZ odel o. (S) *** XZ** ** unction, port meter out restrictor Size unction, port meter in restrictor, counterbalance, overload and port pressure release Size Weight kg 9 9 Weight kg 9 ydro-logic valve pplications {} {} {} ressure a{kgf/cm } omposite valve series omposite valve series low rate l/min artridge series artridge type hydro-logic series ress achinery Stepped pressure presses Scrap presses xtrusion presses ile presses etal rocessing achinery Shearing machines ending machines orming machines eep-drawing press olding achines njection (pressure) molding machines Rubber injection machines xtrusion molding machines (njection) low molding machines ie casting machines ron and Steel achinery ontinuous casting machines Rolling mills onveying lines anipulators eneral anufacturing achinery acking machines ransfer machine arbage processing plants ranulators Waste paper presses -

402 SRS YRU YR Series eneral urpose ydraulic ylinder eatures φ to S, a qeneral purpose series hydraulic cylinders have a high level of compatibility and interchangeability, plus very stable performance and quality. wll component parts are completely standardized for quick delivery and easy parts replacement, maintenance, and inspection. especially selected materials used in tubes, rods, packing, bolts and all other parts ensures durability. n a tough environment. Specifications tem a{.kgf/cm }Series a{kgf/cm }Series Remarks aximum Working ressure a{.kgf/cm } a{kgf/cm } When using a meter out inhibitor, take care that pressure generated in the Withstand ressure.a{kgf/cm } a{kgf/cm } rod side cylinder chamber does not exceed the limits shown to the left. inimum perating ressure.a{.kgf/cm }.a{.kgf/cm } oad ressure oefficient t least 9% llowable aximum Speed m/min llowable inimum Speed.m/min ylinder nside iameter (mm),,,,,,,,,,,, Stroke Standard up to mm. See page - for strokes greater than mm. Rod iameter Rod and Rod perating luid and il emperature perating luid : il-based operating fluid il emperature : to aint olor ancel o. / elamin o. r red rust-resistant paint ote) ontact your agent for non-standard requirements. he following series are also available. Series (a) Series (.a) S Series (with switch) ire resistant hydraulic fluid is also handled as standard products. ontact your agent for more information. ylinder Specifications (ajor haracteristics alculated Values) ylinder nside iameter ajor haracteristics mm ort iameter Rc (revuously ) / / / / / / / / / ead Side rea (cm ) Rod iameter (mm).. 9 Rod Side rea (cm ) Rod rea (cm ) Speed Ratio orward Reverse orward a {} {9} {} {} {} {} {} {9} {} {} {} {} {} {} {.kgf/cm utput } Reverse {} {} {9} {} {9} {} {9} {} {} {9} {9} {9 {9} {} k {kgf} orward a {} {} {} {} {9} {} {} {} {} {} {9} {9} {} {} {kgf/cm } Reverse {} {} {9} {} {9} {} {9} {9} {} {9} {} {} {9} {} Rod iameter (mm).. Rod Side rea (cm ) Rod rea (cm ) Speed Ratio orward Reverse orward a {9} {} {} {} {} {} {9} {} {.kgf/cm utput } Reverse {} {} {} {} {} {} {} {} k {kgf} orward a {} {} {} {9} {} {} {} {} {kgf/cm } Reverse {} {} {} {} {9} {} {} {} ushion Stroke (mm) Rod iameter Rod Rod iameter Rod ote).on-cushion () is standard for inside diameter φ. ontact your agent for information about cushions..speed ratio and out output specifications are theoretical values based on a rod diameter. ydraulic ylinder roduct not covered by S9 registration -

403 xplanation of model o. R ylinder name ounting ype xial right-angle foot ype esign number ushion, air bleeder position ort position * ype xial foot ype ype * Y ype Rod side flange ype over ype * Z ype ead side flange ype ype ype ype ushioning R one Rear clevis ype ead side cushioning Rod side cushioning oth side cushioning ressure classification Rod side trunnion ype ntermediate trunnion ype *,, and types are for pa {.kgf/cm} high operating pressure types. or flange types under higher pressures, use Y or Z. aximum operating pressure: a{.kgf/cm } aximum operating pressure: a{kgf/cm } U Standard port position is. ushion screw and air bleed position is R. which is located 9 clockwise from the port when viewed from the rod side. Specify when a different position is required. he type has a port opposite the port side only. R U R ellows one onex Silicon ylon/tarpaulin (standard) eoprene one ydraulic ylinder ylinder.. Rod diameter (Rod and Rod ) ylinder stroke Stroke up to mm is standard. See the following table for strokes greater than mm. nside diameter Series to to a{.kgf/cm } to a{kgf/cm } to over ixing System ie Rod Screw n lange ote).use a omograph to determine rod buckling..with the screw in flange system, the tube and flange are fixed by being screwed in. andling ote the following installation and handling precautions to get the most out of cylinder performance and to obtain the long service life for which cylinders are designed. zylinders are designed for rigidity. e sure to secure them in place with bolts. xnstall cylinders in a location that allows their easy removal, maintenance, and inspection. cwhen installing a cylinder in a location where the air quality is poor, or where there are large amounts of dust, metal powder, or other contaminants, install dust covers on the rod and shell to protect them. vwhen installing a cylinder, align it with the center of the slide, and make sure it is not subjected to lateral or rotational force by the piston or rod. When lateral force is unavoidable, make sure it does not exceed / of cylinder maximum output. bwhen coupling the piston rod and machinery, adjust so there is no unnecessary force applied to the piston rod sliding bush. -

404 omograph (peration onditions, oad, Rod, Stroke) ack Ring Safety actor ccording to uler quation ylinder diameter mm aximum pressure a {kgf/cm }.... k utput {on} ounting uxiliary ine When there is concern about unbalanced load caused by rod tip freedom Y. uxiliary ine Y... (When there is complete load guide) Y.... (When there is complete load guide is not possible) Y... (When load guide is unstable) Rod.. mm Stroke mm () () () () () omograph pplication xample etermining aximum Stroke he maximum stroke under the following operating conditions can be easily determined as shown below. perating nvironment ylinder.. : φ mm aximum Working ressure: a{kgf/cm } ounting ethod : type (Rod Side lange) oad uide ondition : Unstable iston Rod iameter : mm etermining aximum Stroke zraw a line through mm on ine (ylinder..) and on ine (aximum ressure), and extend it to ine (utput). he point of intersection on ine is at k. xraw a line from k on ine to point ( type, unstable load guide) on ine (ounting ype uxiliary ine), and then extend the line until it intersects with ine. ote) type is intermediate trunnion type craw a line from the point of intersection on ine to mm on ine (Rod iameter) and then extend the line until it intersects with ine (Stroke). his indicates a maximum stroke of about mm. ydraulic ylinder -

405 nstallation imension rawings ype a{.kgf/cm } a{kgf/cm } ype a{.kgf/cm } ype a{.kgf/cm } ype a{.kgf/cm } a{kgf/cm } ype a{.kgf/cm } ydraulic ylinder ype a{.kgf/cm } a{kgf/cm } Y ype a{.kgf/cm } a{kgf/cm } ype a{.kgf/cm } a{kgf/cm } Z ype a{.kgf/cm } a{kgf/cm } -

406 Symbol ommon ype ype Y ype Z ype Rod diameter nside diameter Rod Rod Unit : mm 9 9 S Width across flat 9 9 S Width across flat (Y ype only) / / / / / / / / / 9 Q R Y ( ype) (Y ype) ( ype) 9 9 (Z ype) ( ype) (Z ype) ydraulic ylinder -

407 ydraulic ylinder Symbol ype ype ype nside diameter Unit : mm S + S + S + S + S + S + S + S 9+ S + S + S + S : Specify when dimensions are different from those shown above. ote). S is stroke.. he overall length dimensions are Rod dimensions. or Rod, imension is different, so overall length is also different.. S and rows marked with an asterisk (*) are Y type typical values. See Y ype for other types of mounting. Weight able odel o. Rod diameter Rod Rod diameter Rod Weight at Zero Stroke ylinder.. + S + S Y Z Weight at mm Stroke Weight at Zero Stroke Y Z Weight at mm Stroke ote) ylinder weight is the total of the zero stroke weight plus the stroke weight. Unit : kg -

408 Rod over ounting ethod nside diameter Symbol W Rod diameter S is stroke. W W acking ype ist + S. + S. + S. + S + S + S + S + S + S + S + S + S + S + S ote). he decimal part of the W dimension is rounded down.. his diagram shows dimensions for nylon tarpaulin (Standard: max. heat resistance), neoprene ( max. heat resistance), silicon ( max. heat resistance), and conex ( max. heat resistance), which are used with the standard cylinder. eat resistance does not indicate constant temperature, but maximum temperature within a short period. sbestos/aluminum ( max. heat resistance) and other materials are also available, and using such materials changes the W dimension. ontact your agent for more information.. Use a heat wall when there is particularly intense heat radiation due to ambient temperature. lso avoid high temperatures due to heat conduction.. When a rod cover is required, specify with the symbol described in the section that explains model numbers. Rod iameter Rod Rod iameter Rod art o. ylinder.. ushion Valve ominal iameter Screw Seat acking (ujikoshi)(qty: ) ust Seal SR ype.... eight (Qty: ) land acking SY ype.... eight (Qty: ) land ush ominal iameter (Qty: ) over ominal iameter (Qty: ) iston.. ominal iameter (Qty: ) iston acking SY ype.... eight (Qty: ) art o. ylinder.. ushion Valve ominal iameter Screw Seat acking (ujikoshi)(qty: ) ust Seal SR ype.... eight (Qty: ) land acking SY ype.... eight (Qty: ) land ush ominal iameter (Qty: ) over ominal iameter (Qty: ) etail of rod diameter Rod part (.. φ to φ) ote) /-** refers to S -/. iston.. ominal iameter (Qty: ) iston acking SY ype.... eight (Qty: ) ush ominal iameter (Qty: ) ydraulic ylinder -

409 ip ap -ork ip ap ip fitting thread: thread: Y -ork ip ap(with in) Rod sequence nside diameter esign number -ork ip ap Symbol ommon Rod diameter Rod Rod nside diameter Q ork ip ap nside diameter Symbol Set screw Y +. ommon Rod diameter Rod Rod Y 9 Y Y.. Y... Y 9 9 Y Y ydraulic ylinder ocknut ype escription (xample) ocknut (or ) Split pin Set screw esign number Rod diameter ip lock nut Rod diameter.. Symbol a b 9 9 c

410 SRS Series Standard Variable ump Unit Series is a compact, low-cost standard unit that includes a variable vane pump (VR, V Series) or a variable piston pump (VS/ZS Series). he power unit is low-noise, low-heat, energy-efficient, and highly reliable. he Series has been expanded to include a choice of models that are optimized for a very wide range of needs. vailable tank capacities range from l to l. eatures ow energy, high efficiency built-in low-noise, high-efficiency variable pump ensures lowheat, high-efficiency, low-energy operation. rich range of options full selection of options include base block, cooler, terminal box, microseparator, oil pan, return filter, and more, so you can configure a unit that meets your particular needs. selection of versatile circuits Virtually any type of circuit can be configured using ganged type modular valves. ow cost, short lead time omponents are all standard and mass produced, so parts are readily available at low prices. andling z ll pump rotation is clockwise (rightward) when viewed from the shaft side. x See the table below for information about adjusting discharge volume and pressure. c or operating fluid, use regular oil equivalent to S V to (Viscosity ndex: 9 or greater). djusting Screw ump type Rotation irection V VS ZS VR lockwise ncrease ecrease ressure ounterclockwise ecrease ncrease ischarge lockwise ecrease rate ounterclockwise ncrease Specifications ote) qor direct connect type, use a achi Uni-pump. w il temperature limit is room temperature + setting conditions are full cutoff continual operation, tank located in a well-ventilated area. e n unload circuit is required when the motor is started under condition λ. ontact your agent about the unload circuit. r Unless specified otherwise, electrical systems and paint colors are standards (see page -). Variable Vane ump Series odel o. ump odel o. onnection (V) --.V- -() (V*) --**V*- -() (V) --.V--() * --**V*- - * --**V*- - (V--*-) VR--*- (V--*-) VR--*- (V---) VR--- V--*- * V--*- * otor (ll xternal) kw, ank apacity l irect. irect ote). ontact your agent when mounting motors enclosed in parentheses. hese motors require special handing concerning operating pressure, heat generation, etc..quip a return filter for pressures of a or greater.. radiator is equipped as standard with the l type.... ote) ll models in this series are equipped with a return filter as standard. irect. oupling oupling --**V*- - V--*- oupling --**V*- - V--*- oupling Variable iston ump Series odel o. ump odel o. onnection --**V*-R- VS--*- irect --**V*-R- VS--*- irect --**V*-R- VS--*- irect --**V*-R-() VS--*- irect --**V*-R-() VS--*- irect otor (ll xternal) kw, **V. *-R-() VS-- *- oupling.. --**V*-R- VS--*- oupling.. --**V. *-R- VS-- *- oupling --**V*-R- ZS--*- oupling --**V*-R- ZS--*- oupling... ank apacity l ower supply for all types is V. ull utoff ressure at ank il emperature imit ote ) a{kgf/cm } o an ooler. (.). (.9). (.). (.). (.9). (.9). (.) With Standard an ooler. (.) 9. (9.) With ighpower an ooler pproximate Weight kg 9. (.). (.). (.). (.). (.) 9. (9.9). (.). (.) ull utoff ressure at ank il emperature imit ote ) a{kgf/cm } o an ooler. (.). (.). (.). (.9). (.). (.). (.). (.) 9. (9.9). (.). (.). (.) With Standard an ooler With ighpower an ooler. (.). (.). (.). (.). (.). (.). (.). (.). (.). (.). (.) 9 9 ower supply for all types is V. pproximate Weight kg 9 9. (.). (.). (.). (.). (.) 9 ydraulic Unit -

411 ydraulic Unit 9 Series Selection hart a ressure (a) (ine ) mm ylinder diameter cm ylinder area.. (ine ), mm/s Speed [xample] o determin the Series model that drives a φ cylinder with an output of k and speed of mm/s. (a) raw a line (ine ) between k on the output line and the φ point on the cylinder diameter line. xtend ine until it intersects with the pressure line at oint (a). hough oint (a) indicates a pressure of.a, we need to add about a to compensate for pressure loss due to piping and other factors, so a pressure of a is required. k utput (b) low rate l/min. low rate l/min rea /z z z /z z z /z z z z z 9 /z z z z z ressure a Variable Vane ump Series Series odel Variable iston ump Series. to. --.V-R-. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to.. to to.. to.. to.. to.. to.. to.. to. (b)rom the φ point on the cylinder diameter line, draw a line (ine ) to the mm/s point on the speed line. xtend ine until it intersects with the flow rate line at oint (b), which indicates a required flow rate of. l/min. (c) ased on the required flow rate of. l/min. and required pressure of a obtained above, we can now check the selection chart where we easily find out that the required model is --.V-. ext, select the required option from able on the following page. --.V*-() --.V*-() --.V*-() --.V*-() --.V*-() --.V*--() --.V*-() --.V*--() --.V*-() --.V*--() --.V-()- --.V*--() --.V-()- --.V-()- --.V-- --.V- --.V-- --.V- --V-- --.V- --V-- --V- --V- --V-()- --.V-R-() --.V-R-() --.V-R-() --.V-R-() --.V-()R-() --.V-R-() --.V-()R-() --.V-R-() --.V-()R-() --.V-R-() --.V-()R-() --.V-R-() --.V-R- --V-R- --.V-R-() --.V-R- --V-R- --V-R- --V-R- --.V-R- --V-R- --V-R- --V-R- --V-R- --V-R- --.V-R- --.V-R- --V-()R- --V-R- --.V-R- --V-R- --.V-R- --V-R- --V-R- --V-R- --.V-R- --V-R- --V-R- --V-R- --.V-R- --V-R- --V-R- --.V()R- --V-R- --V-R- --V-R- --V-R- --.V-R- --V-R- --V-R- ote). ontact your agent if you need a lowpressure unit with piston pump.. f flow rate and pressure are not specified, products are configured with company standard settings before shipping.. When running items marked with a star ( ) to the right of the table for long periods at pump setting pressure, oil temperature may exceed even when a fan cooler is used. n this case, use a water cooler.. ontact your agent for applications where there is the chance of frequent momentary return flow due to the use of, or surge voltage generated due to the use of fast switching valve response and a high cycle. -

412 xplanation of model o.. ***** () esign number : dditional base block type ption (able ) ump function ump type V, V: Variable vane V: Variable piston otor capacity (. to ) kw, (.kw only indicated as.) ank volume (,,,,,,, )l or variable vane pump ressure apacity. a a. a a.cm /rev.cm /rev ().cm /rev q q.cm /rev ().9cm /rev w w.cm /rev () or variable piston pump ressure apacity to a to a.cm /rev.cm /rev.cm /rev.cm /rev.cm /rev.cm /rev Series (standard variable pump unit) able : ption Symbols Symbol escription odel umber and escription to,, ase lock (esign o. nly) U Series built-in ote Radiator -- eneral-purpose an ooler 9-- /W Single-phase V /z igh-power an ooler 9-- /W Single-phase V /z erminal Wiring (rive System + ontrol System) Wiring from each electrical device to the terminal box (rive System + ontrol System) erminal Wiring (ontrol System nly) Wiring from each electrical device to the terminal box (ontrol System nly) ounting oot for orklift See mounting foot for forklift specifications. icroseparator -S( to), -ZS( to ) oise ontrol otor specifications il pan See oil pan specifications. R Return ilter WS---V(μ paper) -*(μ paper) ote ote R Return ilter RS-**-***(μ paper) ote R Return ilter -**(μ paper) emperature auge (With luid evel auge) φ ( to ) with guard φ (- to ) with guard V Vibration ontrol nti-vibration rubber, rubber hoses, etc. W Self eak est ank leak test by W overnment-mandated eak est ank leak test by fire department hermostat (bnormal oil temperature detection: ontact a) S- (ontact on: and above) S S ressure Switch (bnormal pressure detection: ontact a) loat Switch (ow fluid level detection: ontact a) ** ontact : (ump Setting ressure) (.a) and above V- ontact on: (luid evel auge Visual ow evel) (mm) or less luid evel auge uard rotective cover installation R Return ilter (ank op ype) R**-**-S nchor ole uter Side nchor hole set on outer side otor Voltage verseas Reference Voltage ther than V /z; V z Supported for esign umber * Special aint (xterior) ther than standard lacquer paint (phthalates, epoxy, etc.) iston ump Variable ontrol ption ther than standard control system (Q, RS, WS, RQS, etc.) ire Resistant perating luid (W/ ype) Water- or glycol-based hydraulic operating fluid (ontact your agent about other fluid types.) Water ooler When capacity of pump R fan cooler is insufficient lectric il eater When there is the possibility of fluid pressure dropping below ydraulic Unit ote).esign when option symbol is selected. (ase block additional design is not applicable).with the optional Symbol capacity, a special base block can be used in a configuration of up to..ption symbol R -* is applicable to pump functions * and * only..rs-- for option symbol R, capacity using a cm /rev type..ontact achi for information about design number *. -

413 able he upper and lower limit of the series tank hydraulic fluid level ank capacity [] Upper limit of hydraulic fluid level [] ower limit of hydraulic fluid level [] 9 Selecting a otor he lower side of the output curves for each of the motors shown in the graph indicates the operating range under rated output for that motor. Standard voltage for drive motor is V, / z or V, z. or variable vane pump xample: o find the motor that can produce pressure of.a {.kgf/cm } and a discharge rate of l/min. Since the intersection of the two broken lines from a pressure of.a {.kgf/cm } and discharge rate of l/min intersect in the area under the.kw curve, it means that a.kw motor should be used. or variable piston pump (R) V V V l /min ischarge rate Q l /min ischarge rate Q ydraulic Unit ischarge pressure a{kgf/cm } ischarge pressure a{kgf/cm } -

414 ini Series --**V*-*- R* 9 9 nstallation imension rawings 矢視図 uxiliary View --.V -*- --**V *-*- Symbol imensions (mm) l l 9 9 -Rc/ with plug uilt-in 搭載ベースブロック base block ounting reference -Rc/ 取付基準 () () () () () Upper limit ower limit R R* R Rc/ with plug () () () () () () () () () () () () () () ナチパック取扱要領書 R () Upper limit ower limit 9 W* R ナチパック取扱要領書 タンク検査済証 R R:Rc/ :Rc/ () Rc/ (ote) atalog dimensions, layout, and used devices are subject to change without notice. n particular, be sure to check in cases where dimensions are limited. ption item numbers are colored. () () () (9) RUR U () () () () () () () () art o. ame odel o. Q'ty ank **l Strainer S-( mesh) Uni-pump UV()--*-**--() ressure gauge V- ** luid supply port/air breather S-V luid level gauge φ heck valve --- W* ~φ to φ drilling キリトオシ (or bolt) () () (9) (9) () * -Rc/ * **kw, -Rc/ **kw Rc/ R art o. ame odel o. Q'ty ank l R R Strainer S-( mesh) Uni-pump UV--*-**-- ressure gauge V- ** luid supply S-V port/air breather luid level gauge φ x to φ drilling Return filter WS---V X~φキリトオシ Rc/ R ydraulic Unit -

415 ydraulic Unit 9 R --.V V-*- --**V*-*- 9 Symbol imensions (mm) l l 9 uilt-in base block ounting reference -Rc/ -Rc/ -Rc/ with plug Upper limit ower limit () R Rc/ with plug () W* to φ drilling (or bolt) R Rc/ with plug U mounting reference 9 9 Upper limit ower limit 9 () () () () 9 () () (9) () () () () () () to φ drilling (or bolt) -Rc/.kW -Rc/ **kw art o. ame odel o. Q'ty ank **l Strainer S-( mesh) Uni-pump UV--*-**--() ressure gauge V- ** luid supply port/air breather S-V luid level gauge φ heck valve Rc/ R art o. ame odel o. Q'ty ank l Strainer S-( mesh) Uni-pump UV()---.--() Radiator 9-- ressure gauge V- ** 9 luid supply port/air breather S-V luid level gauge φ heck valve --- Rc/ R -

416 () 9 9 R* --.V U 取付基準 -Rc/ -Rc/ with plug W* W* R Rc/ with plug 9 () () () () () () Upper limit ower limit () () () () () () () () () () () art o. ame odel o. Q'ty () ank **l uilt-in 搭載ベースブロック base block 9 Strainer S-( mesh) R* U mounting reference --**V*-*- --**V*-*- Symbol imensions (mm) l l ounting reference 取付基準 () () () -Rc/ Upper limit ower limit ナチパック取扱要領書 R () () () 9 () ~φキリトオシ R ナチパック取扱要領書 タンク検査済証 R Rc/ with plug () 9 () () to φ drilling (or bolt) (9) (9) () () () to φ drilling (ole ~φ for bolt) キリトオシ () () to Rc/ **kw, **kw, to Rc/ Rc/ R art o. ame odel o. Q'ty ank l Strainer S-( mesh) Uni-pump UV Radiator 9-- ressure gauge V- ** 9 luid supply port/air breather S-V luid level gauge φ heck valve Rc/ R ump V-**- oupling R-**** otor ully closed external fan erminal *kw- ressure gauge V- ** luid supply port/air breather S-V-VS 9 luid level gauge φ heck valve ydraulic Unit -

417 タンク検査済証 ydraulic Unit --**V*-*- --**V*-*- Upper limit ower limit 9 W* 9 9 Symbol 9 ナチパック取扱要領書 搭載ベースブロック uilt-in base block 取付基準 ounting reference R* imensions (mm) l : (Rc) : (Rc) W* uxiliary View 矢視図 -Rc/ l Variable iston ump Series --**V *-R- () Upper limit ower limit Rc/ with R* plug R -Rc/ with plug 9 W* to φ drilling ~φキリトオシ (or bolt) 9 矢視図 uxiliary View R Rc/ with plug -Rc with plug () () () () 搭載ベースブロック () () R 取付基準 R uilt-in base block ounting reference () タンク検査済証 ナチパック取扱要領書 R ~φ9 to φキリトオシ 9 drilling (or bolt) R () () () () () () () () () () () () () () W* () () () () () () () () () () () () () () (Rc) * Rc (Rc) **kw, * -Rc/ **kw Rc Rc/ R art o. ame odel o. Q'ty ank **l Strainer S-( mesh) ump V--*- oupling R-**** otor 9 Rc/ art o. ame odel o. Q'ty ank l Strainer S-( mesh) Uni-pump UV-*-***-**--() ressure gauge V- ** luid supply port/air breather S-V luid level gauge φ Return filter ully closed external fan terminal *kw- ressure gauge V- ** luid supply port/air breather S-V-VS 9 luid level gauge φ heck valve --- Relief valve R--- (-)- μ paper R -

418 --**V*-R- Rc/ with plug -Rc/ with plug () -Rc/ Rc/ R 9 uilt-in base block ounting reference -Rc/ R* () Upper limit ower limit 9 () W* R () () () () to φ drilling (or bolt) () () * **kw * art o. ame odel o. Q'ty ank l Strainer S-( mesh) Uni-pump UV--*-**-- ressure gauge V- ** luid supply port/air breather S-V luid level gauge φ Return filter (-)- μ paper uxiliary View --**V*-*- 9 9 () 搭載ベースブロック () 取付基準 uilt-in base block ounting reference -Rc/ Upper limit ower limit 9 矢視図 uxiliary View R* R* () () () () () () () () () () ナチパック取扱要領書 タンク検査済証 R ~φキリトオシ W* W* R Rc/ with plug -Rc/ with plug () () () () () () to φ drilling (or bolt) * -Rc/ **kw * Rc/ R art o. ame odel o. Q'ty ank **l Strainer S-( mesh) Uni-pump UV--*-**-- ressure gauge V- ** luid supply port/air breather S-V luid level gauge φ Return filter (-)- μ paper ydraulic Unit -9

419 X X ydraulic Unit 9 --**V *-* U mounting U 取付基準 reference R uxiliary View 矢視図 Upper limit ower limit ナチパック取扱要領書 () () R R R R 搭載ベースブロック () () () (9) 取付基準 uilt-in base block (9) ounting reference R* uxiliary View 矢視図 Symbol imensions (mm) l l 9 -Rc/ --**V*-()R- --**V*-()R- 9 ナチパック 取扱要領書 タンク検査済証 W* R () () Rc/ with plug -Rc/ () () () () () () () () () 9 () () () () () () () () (99) () (99) () () () to φ drilling ~φ (or キリトオシ bolt) ~φキリトオシ to φ drilling (or bolt) X X Rc/ with plug - Rc/ with plug R* 9 Upper limit ower limit W* R () * * -Rc/ -Rc/ **kw * 9 Rc/ R Rc/ R art o. ame odel o. Q'ty ank **l Strainer S-( mesh) Uni-pump UV--*-**-- ressure gauge V- ** luid supply port/air breather S-V luid level gauge φ Return filter -(μ paper) 9 an cooler 9-- * **kw art o. ame odel o. Q'ty ank l Strainer S-( mesh) ump VS--***- oupling R-**** otor ully closed external fan terminal **kw- ressure gauge V- ** luid supply port/air breather S-V 9 luid level gauge φ Return filter (-)- μ paper 9 -

420 --**V *-()R- R () Rc/ with plug -Rc/ () * -Rc/ Rc/ R U mounting reference R () * **kw 9 9 uxiliary View 9 Upper limit ower limit () () () to φ drilling (or bolt) art o. ame odel o. Q'ty ank l Strainer S-( mesh) ump VS-- *- oupling R-**** otor ully closed external fan terminal *kw- ressure gauge V- ** luid supply port/air breather S-V 9 luid level gauge φ Return filter -(μ paper) --**V*-R*- Rc/ with plug an cooler uilt-in base block ounting reference R* -Rc/ uxiliary View Upper limit ower limit 9 R - Rc/ with plug () () () W* () () () () to φ drilling (or bolt) * * -Rc/ **kw Rc/ R art o. ame odel o. Q'ty ank l Strainer S-( mesh) ump VS--*- oupling R-**** otor ully closed external fan terminal *kw- ressure gauge V- ** luid supply port/air breather S-V-VS 9 luid level gauge φ 9 ydraulic Unit Return filter (-)- μ paper -

421 タンク検査済証 --**V *-R*- R* Rc/ with plug R R () () () () () -Rc/ with plug () * -Rc/ * **kw Rc/ R 9 () () (99) () (9) uilt-in base block -Rc/ R* ounting reference 搭載ベースブロック 取付基準 R Upper limit 9 ower limit W* uxiliary View 9 W* ナチパック取扱要領書タンク検査済証 () () () () () () 9 (99) 9 (99) to φ drilling (ole for bolt) ~φ キリトオシ art o. ame odel o. Q'ty ank l Strainer S-( mesh) ump VS--***- oupling R-**** otor ully closed external fan terminal **kw- ressure gauge V- ** luid supply port/air breather S-V-VS 9 luid level gauge φ Return filter RS-(μ) (-)- μ paper ydraulic Unit Upper limit ower limit 9 W* ナチパック取扱要領書 矢視図 --**V*-R*- --**V*-R*- Symbol imensions (mm) l l : (Rc) : (Rc) W* uilt-in base block ounting reference 矢視図 uxiliary View () 搭載ベースブロック取付基準 R () () R R () () R () () Rc/ with plug -Rc with plug () () () () () () ~φ9キリトオシ to φ 9 drilling (or bolt) () () () () () (Rc) (Rc) Rc * * **kw, Rc Rc/ R art o. ame odel o. Q'ty ank **l Strainer S-( mesh) ump ZS--*- oupling R-**** otor ully closed external fan terminal **kw- ressure gauge V- ** luid supply port/air breather S-V-VS 9 luid level gauge φ heck valve --- Relief valve R--- Return filter RS-- 9 lexmaster joint -- ote) Set! relief valve setting pressure so it is equivalent to pump setting pressure plus.a {.kgf/cm }. -

422 ank apacity imensions (mm) utlet Size S 9 utlet lock Specifications esign number utlet lock imensions - Rc S tap - Rc (lange can be mounted with and only.) ounting reference 9 9 il an Specifications "headband type" oil pan is standard, and an oil pan drain is provided at one location (Rc/). Structural iagram Upper plate il pan / / / / S 9 SS- (Rcl) ounting reference 9 9 esign number utlet lock imensions 9 U Series ounting reference ption U Series uilt-in (See base block specifications for dimensions.) orklift ounting eg Specifications orklift ounting eg Specifications il tank ank longitudinal direction ank acking to orklift mounting leg (oth sides) Standard Specifications.aint olor: ancel o. / (lacquer).otor Specifications: Wiring olor oding erminal number erminal erminal box specifications Single S White, lack.. ontrol S onsecutive V-.mm System SS Y ype Solderless nner : ancel o..y/ numbers ouble S Red, White, lack, reen (ommon: ) ust-tight type, cover fastened by screws rive to.kw V Red, White, lack, reen U, V, W, Round Solderless System uter : ancel o /.kw to V + lack () + reen (acquer) an cooler 9 V-.mm White, lack U, V Round Solderless ydraulic Unit -

423 ase lock Specifications xplanation of model o. * * esign number : size and size for mounting : size for mounting to X control circuit size symbol : size : size ultiple base block U: uilt-in type U: ass block added type S: Single removable type for unit assembly W: ouble removable type for unit assembly U Series (Unit uilt-in) his base block is a special type built into the Series. lock odel umbers, ppearance, imensions size size to φ 9 drilling to φ drilling odel o. imensions (mm) Weight kg U (acing side identical) odel o. imensions (mm) Weight kg U --() 9. --(). --(). --(). --() (). ote). here are two types of mounting bolts available for the size: and. e sure to specify the type of bolt you need. : S, SS- Series : SS Series. When using the / combination type a) he installation pitch uses the size dimensions shown above, and for and ports only the size installation part is Rc/. b) n the case of U--, for example, valve installation locations,, and counting from the left are size, while,, are size. ydraulic Unit ther Space is limited in accordance with tank capacity, so use the basic data in the following table when designing the circuit. V* Series ank apacity Space lock Space lock l Up to Up to l Up to Up to l Up to Up to l Up to Up to l Up to Up to, l Up to (,, ) + Up to (,, ) l Up to l Up to Up to l Up to Up to Z Up to Up to l Up to Up to, l Up to Up to, l Up to (,, ) + Up to (,, ) ote) ote that using in series larger than those noted above causes overhang from the top plate. VS Series -

424 U Series (ase lock dditional onfigurations) his series makes it easy to add an option base block using only four mounting bolts. he following shows the range of the possible addition. n this configuration, the unit design number becomes. lock odel umbers, ppearance, imensions to Rc/ (pposite side the same) 9 X to ()x 9 X to x ack x (x array only) 9 to x to x 9 utlet block () X to Rc () odel o. imensions (mm) Weight kg U-- /. U--() () /. U-- /. U--() () /. U-- /. U--() () /. U-- /. U--() () /. ote). here are two types of mounting bolts available for the size: and. e sure to specify the type of bolt you need. : S, SS- Series : SS Series. When using the / combination type a) he installation pitch uses the size dimensions shown above, and for and ports only the size installation part is Rc/. b) n the case of U--, for example, valve installation locations and counting from the left are size, while, are size.. When using a -speed plate, a special U type is used. ontact your agent for more information. ption ase lock nstallation rocedure oosen bolts and and remove plate. ext, after checking to ensure that is installed, install the option base block using,, and. ote) and are used only in and multi configurations. n single and double configurations, and are just removed. esign Series Scope his series consists of a total of six best-seller piston and vane types with,, and l tanks. ote that piston Z type and vane V type are not included. ption ase lock ddition Scope ank apacity ase lock ase lock l Up to Up to l Up to Up to l Up to Up to ption base block 9 Series outlet block 9 olt late 9 ock washer olt to holes ption block ydraulic Unit art o. ame odel o. exagon Socket ead olt late 9 9 t - ex bolt ock washer or -

425 S, W Series (Unit ssembly ype) his base block is used to install the valve unit only around machinery. lock odel umbers, ppearance, imensions S Series (Single jection ulti lock) size W Series (ouble jection ulti lock) size to R tap to R tap (acing side identical) to φ. drilling to φ. drilling to R tap to R tap odel o. imensions (mm) Weight kg S to R tap odel o. imensions (mm) Weight kg W Size (, onnection ype) Size (, onnection ype) to R (both sides) tap ote: x to ()x9 tap to φ drilling to R tap to R tap ote: x to ()x9 tap to φ drilling Side to R tap ydraulic Unit to R tap odel o. imensions (mm) Weight ote ) kg S- -() 9 (). -**-() (). -***-() () 9. -****-() (). -*****-() 9 (). -******-() (). ote). here are two types of mounting bolts available for the size: and. e sure to specify the type of bolt you need. : S, SS- Series : SS Series. When using the / combination type a) he installation pitch uses the size dimensions shown above, and for and ports only the size installation part is Rc/. b) n the case of S--, for example, valve installation locations,, counting from the right are size, while,, are size. to R tap odel o. imensions (mm) Weight ote ) kg W- -() (). -**-() 9 (). -***-() ().9 -****-() (). -*****-() () 9. -******-() 9 (). ote). here are two types of mounting bolts available for the size: and. e sure to specify the type of bolt you need. : S, SS- Series : SS Series. When using the / combination type a) he installation pitch uses the size dimensions shown above, and for and ports only the size installation part is Rc/. b) n the case of S--, for example, valve installation locations,, and counting from the right are size, while,, are size. - ote that the plugs in the base blocks of the S and W series are not closed following uly.

426 ontrol ircuit ption Specifications ption (ressure auge anel imension iagram) φ drilling φ drilling to φ 9 drilling ption (ameplate anel imension iagram) (lock width) odel o. S- 9 S- 9 W- 9 9 W- φ drilling ote) he nameplate panel is separate from the base block when shipped, so fasten them together during installation. ption (il an imension iagram) φ9 drilling to φ drilling to ex socket bolt umber of odules or or ote) When shipped, the oil pan is fastened from the back by the same nut as the block. ption imension able odel o. pplicable odel o. pplicable -S- 9 9 S- -W- 9 W ydraulic Unit odel o. pplicable -S- 9 S odel o. pplicable -W- W

427 S SRS S Series ompact Variable ump Unit ompact hydraulic units are widely used as a power source in such machine tool applications as lathe check opening and closing, tool rotation, machining center spindle raise and lower operations, etc. uring pressure holding, the S unit enables high machine efficiency that delivers energy savings of approximately % compared to standard achi units (in-house comparison), all in a compact, lightweight hydraulic unit. eatures ncreased energy savings Support for using an efficient premium motor provides % energy savings compared to standard unit (in-house comparison while dwelling) ower consumption (kw)... welling (full cut-off) otor - polarity:. kw - Voltage - frequency: V - z Standard unit S Series Specifications % down. Setting pressure at (a) Space-saving Variable vane pump has integrated motor so installations in compact spaces are easy in a compact and streamlined layout. asy peration and aintenance Simple construction and highly reliable pump controls mean excellent maintenance and handling. onserve Resources ydraulic fluid in a low-volume tank helps conserve the world's resources. ompliant with U and S in the US ineup of models use U certified electric motors and comply with the US nergy ndependence and Security ct. igh fficiency for ow eat utput otor efficiency is high and heat output is low, particularly when the pump is dwelling, to support high accuracy for the parent machine. tem odel o. S-*-*V* S-*-*V* S-*-*V* ump apacity cm /rev... aximum ressure a. (.kgf/cm ) (ull utoff ressure). (ull utoff ressure) * llowed peak pressure is. otor utput kw.,..,..,. ank apacity l,, nstallation Space mm pproximate Weight kg 9 (l,.kw, excluding options) (l,.kw, excluding options) ydraulic Unit -

428 xplanation of model o..,.cm /rev Series S V (U) ote). ote that there are certain restrictions on pump capacity and motor capacity combinations. See the Selection recautions on page - before selecting a model..esign numbers are subject to change without notice. esign number : Standard product U: roduct compliant with U and S in the US ption (ndicate in alphabetic sequence.) *, R* : uilt-in block (See page - for details.) : hermometer installed on oil level gauge ressure adjustment range ( : onstant discharge type) :. to.a(.a) ressure gauge Scale a :. to.a(.a) ressure gauge Scale a :. to.a(.a) ressure gauge Scale a ote : igures in parentheses show factory default full cutoff set values. low rate adjustment range (aximum capacity) : cm /rev : cm /rev ote : actory defaults are maximum values shown above. ump type : Variable vane pump otor capacity : :.kw :.kw :.kw ank volume :,l (Special specification l type also available.) S Series compact variable pump unit.cm /rev Series S V (U) esign number : Standard product U: roduct compliant with U and S in the US ption (ndicate in alphabetic sequence.) *, R* : uilt-in block : hermometer installed on oil level gauge ressure adjustment range ( : onstant discharge type) :. to.a(.a) :. to.a(.a) :. to.a(.a) ote : igures in parentheses show factory default full cutoff set values. low rate adjustment range (aximum capacity) : cm /rev ump type : Variable vane pump otor capacity ank volume : l l :.kw :.kw S Series compact variable pump unit ydraulic Unit -9

429 ydraulic Unit.,.cm /rev Series S-*-**V**-(U) () :Rc/ lange mounting surface ressure adjusting screw Right rotation: ressure up eft rotation: ressure down luid level gauge 9 il supply port / air breather Upper limit ower limit () () ().cm /rev Series S-*-**V*-(U) 9 :Rc/ lange :Rc/ mounting surface フランジ取付面 esign rawings, imension ables il supply port / 注油口兼エアーブリーザ air breather () 圧力調整ねじ ressure adjusting screw 右回転 : 圧力上昇 Right rotation: ressure up 左回転 : 圧力下降 eft rotation: ressure down luid level 油面計 gauge Upper 上限 limit ower 下限 limit ir flow 9 - ir 風 flow () R:Rc/(bove oil level) :Rc/ () () () () - to Unit hanger hardware (eye nut) ischarge rate adjusting screw Right rotation: Rate decreased Rotate left: Rate increased () to φ drilling or bolt R:Rc/(bove oil level) R:Rc/( 油面上 ) :Rc/ :Rc/ () () to ~Unit ユニット吊り金具 hanger hardware (eye ( アイナット nut) ) : Rc / to x().±. Wiring port /.±. Sb-/ lange mounting surface details il drain port losed plug Rc/ () (9) 吐出量調整ねじ ischarge rate adjusting screw 右回転 : 吐出量減少 Right rotation: 左回転 : Rate 吐出量増大 decreased Rotate left: Rate increased () () () il drain port (Written in nglish () to φ drilling losed plug Rc/ and apanese) ~φキリトオシ排油口 9 or bolt () (ボルト用) 閉止プラグ Rc/ 9 () () : Rc / to x.. Sb-/ lange mounting surface details ote: See the following page for dimensions. Rc/ Rc/ Rc/ R bove oil level **kw. 9 art o. art ame il tank Suction strainer Uni-pump ressure gauge luid supply port/air breather luid level gauge Radiator lexible hose 9 lexible hose Rc/ Rc/ Rc/ φ. **kw. 9 R bove oil level art o. art ame il tank Suction strainer Uni-pump ressure gauge luid supply port/air breather luid level gauge Radiator lexible hose 9 lexible hose -

430 .,.cm /rev Series odel o..cm /rev Series otor (kw-) S--V**-*-(U). 9 imensions 9 S--V**-*-(U) S--V**-*-(U). 9 S--V**-*-(U). 9 9 S--V**-*-(U). 9 9 S--V**-*-(U). 9 odel o. otor (kw-) imensions pproximate Weight (kg) (xcluding operating fluid) S--V*-*-(U). 9 S--V*-*-(U) S--V*-*-(U). S--V*-*-(U) Selecting a otor S otor Selection urves (Standard voltage for drive motor is V, / z or V, z.) z z SV** V* * (U) S ** V* * (U) S ** pproximate Weight (kg) (xcluding operating fluid). V* * (U). ischarge rate Q l/min.kw.kw ischarge rate Q l/min.kw.kw ischarge rate Q l/min.kw.kw {.} {.} {.} {.} {.} {.} {.} {.} ischarge pressure a{kgf/cm } ischarge pressure a{kgf/cm } * See page - for the characteristics of the drive motor. {.} {.} {.} {.} ischarge pressure a{kgf/cm } ydraulic Unit -

431 [lock ddition xample] S--V --(U) 9 S V (U) () Rc/ Rc/ R to Rc/ () () R:Rc/(bove oil level) :Rc/ () () () () to Rc / to Rc / () (bove oil level) φ..kw. 9 to Rc/ art o. art ame il tank Suction strainer Uni-pump ressure gauge luid supply port/air breather luid level gauge Radiator lexible hose 9 lexible hose ase locks nd lates : art numbers and are options. art number is standard when a block is equipped. ydraulic Unit - oise haracteristics odel o. : S *V* (U) oise level d () erformance haracteristics {.} {.} il emperature haracteristics il temperature rise (room temperature differential) apacity cm /rev, motor.kw apacity cm /rev, motor.kw {.} ischarge pressure a{kgf/cm } {.} odel o. : S * *V* (U) ank volume. pressure.a. pressure.a ank volume ime h ime h ote) or information about power consumption, see the data for the UV Series variable vane uni-pump on page -.. pressure.a. pressure.a. pressure.a onditions (he values shown in the graph to the left are typical characteristics under the following conditions.) perating luid: S V equivalent il emperature: ± Revolution Speed: min easurement istance: meter around the unit (verage value from four directions) ote) oise characteristics are affected by the condition of the floor and stand where the unit is mounted, whether there are noise reflective items nearby, and other factors. Such factors can produce different characteristics than those indicated above. onditions (he values shown in the graph to the left are typical characteristics under the following conditions. ) perating luid: S V equivalent Revolution Speed: min Room emperature: 9 otor:. to.kw ote). ote that continuous operation at pressures of.a or greater with the l tank cause a large rise in oil temperature. l tank is recommended in this case.. Rises in oil temperature depend on actual operating conditions, and so actual temperatures may be different from those indicated above.

432 Selection recautions odel ombinations z he table below shows the standard pump and motor combinations. otor kw ump.... * * x l tank capacities with. or. cm /rev are special specifications. c model equipped with a block comes with a stopper plate on the block. ircuit onfiguration z he basic configuration is a standard S-** plus an external manifold (circuit). x rovide piping with sufficient flexibility between the unit and external manifold. ption etails ake sure the maximum peak pressure (setting pressure + surge pressure) during operation does not exceed a. he following are typical pipe conditions at a reference maximum peak pressure at a or less as reference. Rubber hose (for a) /" x m (ipe apacity: cm ) pump operating conditions: a a, full cutoff t pressures in excess of a, equip a circuit side surge cutoff relief valve. ote) he maximum peak pressure of a pump capacity of cm /rev is a. uilt-in anifold lock z When a manifold block (optional) is built into the pump, make sure the block and valve total weight is not greater than kg. lock ype R R lock Weight (kg)... llowable dditional Weight (kg)... x ontact your agent for information about equipping a circuit. c he cm /rev series blocks are different, contact us for information. aint Specifications z he interior and exterior of the tank are coated with a melamine baked-on resin coating, the motor is coated with cation electrodeposition coating, while the pump is spray painted with a lacquer finish. olor is achi standard color (unsell o.- % gloss). x ontact your agent about specifying external paint colors. to φ. drilling to φ. drilling Rc/ x counterbore.±..±. counterbore φ.±. 9 to Rc/ to φ. drilling φ x counterbore Startup recautions z heck to make sure that the operating fluid in the tank is at the prescribed level. ÅUpper imit ark (Yellow): rescribed fluid level (nominal capacity) ıower imit ark (Red):inimum fluid level ydraulic perating luid: eneral oil-based operating fluid equivalent to S V x erform electrical wiring exactly as shown below. otor and ower Supply olarity R U S V W ±..±. () 9 to Rc/ () o 9 o f wiring is performed incorrectly... lectric pump rotates in reverse, fluid is not discharged ontinued operation can damage the pump. ttach a pressure gauge to the discharge side and check for pressure rise. c erform repeated motor starts and stops to bleed air from the interior of the pump and the suction piping. no-load circuit allows faster bleeding. to Rc/ andling verview φ x.±. 9 () o o 9 Rc/ to Rc/ to Rc/ R to φ. drilling φ x counterbore.. ±..±. () 9 to Rc/ to Rc/ R djusting the ressure and ischarge ressure adjusting screw Right rotation ncrease eft rotation ecrease to φ. drilling φ x counterbore.±. 9 φ ressure gauge ischarge rate adjusting screw Right rotation ecrease eft rotation ncrease ote: o not touch anything except the adjustment screw shown above. aintenance and nspection z il emperature: Use in an area where the temperature is to. x perating luid Replacement ycle: erform the initial fluid replacement after three months of operation. fter that, replace fluid when it becomes dirty or once a year, whichever comes first. c Radiator in leaning and in Strainer leaning: very six months or, hours of operation, whichever comes first. nvironment z emperature: to x void areas exposed to mist of water-soluble coolant..±. ydraulic ircuit iagram or () o Rc/. () o 9 to Rc/ () () ote) ptions Rc/ to Rc/. locks can be selected from among the five types ( through R) shown above. he and ports of each block are closed with plugs when shipped.. he shape of the temperature gauge with fluid level gauge "" is shown to the left. ydraulic Unit -

433 nverter rive S SRS nverter rive S Series nergy-saving Variable ump Unit with nverter rive he "nverter rive S Series" is a hydraulic unit that reduces energy consumption by approximately 9% (dwelling, in-house comparison) compared to the standard unit by adding an energy saving S Series inverter drive. hey are great for jobs that need to dwell for long periods. eatures ydraulic oil temperature is kept at room temperature +. he S series benefits your entire system by lowering oil temperature to improve machining accuracy, lengthen the life of seals and hydraulic fluid, and reduce factory air conditioning costs. S--V-.a maintained while dwelling Quiet operation at only d () S--V-.a dwelling -directional average Standard unit sound level is d () asy peration Starts up as soon as the power is turned on bsolutely no external commands or delicate electrical adjustments needed because the pump's Rs are controlled automatically in response to the load. perates with the inverter removed also nverter drive function can be installed separately later an operate as an S unit just by switching out the wiring in case of emergencies. he suspension of production lines will be minimized even if there is trouble with the inverter because it is based on our reliable S unit and keeps running as a regular S unit. f you are already using an S unit, you can add the inverter drive function by installing the inverter control box kit, which is sold separately. ydraulic Unit Specifications. ower Supply Rated nput urrent. ressure djustment Range. utput low (at o-load) φ to V, /z 9./.kW,./.kW./.kW, cm /rev series cm /rev series :. to.a :. to.a :. to.a :. to.a :. to.a :. to.a *: l/min, *: l/min *: l/min. ydraulic luid Standard mineral-based hydraulic fluid (equivalent to S V). ydraulic il emperature to º. olor of aint unsell o.- % gloss. mbient emperature/ umidity to º/ to %R (non-condensation) (eep the unit away from water-soluble cutting fluid mist.) -

434 xplanation of model o..,.cm /rev Series S V.cm /rev Series S V nverter ontrol ox it Specifications ccessories o symbol: none : edestal, hydraulic fluid drain, pipes, fittings pplicable pump capacity :,cm /rev : cm /rev pplicable size of electric motor :.kw, :.kw, :.kw pplicable tank size : l, : l, : l ote) l is not available ressure adjustment range ( : onstant discharge type) :. to.a (.a) ressure gauge Scale a :. to.a (.a) ressure gauge Scale a :. to.a (.a) ressure gauge Scale a ote: igures in parentheses show factory default full cutoff set values. ischarge rate (o-load) : l/min (.kw only) : l/min otor capacity :.kw, :.kw : nverter drive ank capacity: l, l ressure adjustment range ( : onstant discharge type) :. to.a (.a) :. to.a (.a) :. to.a (.a) ote: igures in parentheses show factory default full cutoff set values. ischarge rate (o-load) : l/min otor capacity :.kw, :.kw : nverter drive ank capacity: l, l ydraulic Unit -

435 .,.cm /rev Series S- -**V**- esign rawings, imension ables () il supply port / air breather φ hole :Rc/ ressure adjusting screw Right rotation: ressure up eft rotation: ressure down () () R:Rc/ :Rc/ il drain port Rc/ () ole for power supply 9 9 () () () () -φ hole () ischarge rate adjusting screw Right rotation: Rate decreased Rotate left: Rate increased ote) See the following page for dimensions. * * Rc/ φ. 圧力調整ねじ右回転 : 圧力上昇左回転 : 圧力下降.S **kw- φz 穴 ( 客先電源配線口 ) () * * ** Rc/ or Rc/ 9 :Rc/ フランジ取付面 注油口兼エアーブリーザ -φ 穴 下限 風 Rc/ R bove oil level ユニット Uni-pump 注記シール油面計 9 lexible hose 9 9 ~ユニット吊り金具 ( アイナット ) R:Rc/( 油面上 ) :Rc/ 注意シール art o. art ame art o. art ame il tank an cooler Suction strainer lexible hose ressure gauge ressure sensor luid supply port/air breather nverter control box 上限 制御 X luid level gauge 注記シール () ().cm /rev Series S- -**V*- wind () to Unit hanger hardware (eye nut) () 9 :Rc/ lange mounting surface il supply port / air breather R:Rc/ (bove oil level) :Rc/ Warning sticker () () ydraulic Unit φ hole ressure adjusting screw Right rotation: ressure up eft rotation: ressure down Unit omment sticker (Written in nglish and apanese) luid level gauge Upper limit ower limit - hole (ole for power supply) () () () ressure adjusting screw Right rotation: ressure down eft rotation: ressure up ontrol box omment sticker (Written in nglish and apanese) () -

436 .,.cm /rev Series odel o..cm /rev Series imensions pproximate Weight (kg) S--V**- S--V*- S--V**- S--V*- 9 odel o. imensions Z pproximate Weight (kg) S--V*- 9 S--V*- 9 9 S--V*- 9 S--V* recautions urning the inverter on and off by cutting the main power supply (circuit breaker) significantly reduces the life of the inverter and should be limited to once an hour. ontact us if you need to start and stop operations frequently. Use only the wiring methods described in the user documentation. o not change any settings, regarding the inverter parameters, except the parameters described in the setting procedures in the user documentation. aximum peak pressure (set pressure + surge pressure) must be a or below for the and cm /rev series, and a or below for the cm /rev series. nstall a relief valve to cut surges in the circuit if the maximum peak pressure exceeds these figures. f the maximum peak pressure is high, the inverter's alarm may sound and the motor may stop. ydraulic Unit -

437 ydraulic Unit Series (ow-noise Standard Variable ump Unit) ewly developed compact variable pump unit has environmentally friendly eatures low hydraulic oil temperature for cutting and manufacturing equipment hydraulic units. xtensive lineup in the series to handle requirements exactly. ow hydraulic oil temperature = room tem- wide selection of models from which to perature z, a ull cut-off in continuous operation an to cool pump drain is standard equipment, hydraulic oil temperature are kept low using tank construction focused on anti-foaming. Specifications ** choose asic Series: types ump Variable ontrollers: types ptions: types wide range of models provides a selection of capacity levels, and selecting a variable control mechanism helps to reduce energy needs. ower supply: V-/z V-z ote) perating fluid is not included in options esign number ption (able ) ressure adjustment range (: ressure compensation type) ote) is not available for flow rate adjustment ranges and. :. to.a :. to.a able : ption Symbols (Specify in alphabetic sequence.) :. to.a :. to.a low rate adjustment range (aximum capacity) : cm /rev :.cm /rev Symbol * R* escription *ype block (See block specifications.) R*ype block (See block specifications.) luid level gauge guard : cm /rev emperature switch (ontact on at oil : cm /rev temperature of ) : cm /rev icroseparator ump type: Variable piston pump otor capacity: :.kw, :.kw, :.kw ank volume:,,,, l Series (ow-noise Standard Variable ump Unit) he lower sides of the curves for each of the motors shown in the graph indicate the operating range under rated output for that motor. odel o. ump apacity cm /rev otor capacity kw-. aximum ressure {ull utoff ressure} a{kgf/cm } ank apacity l an ooler otor nput W{at/z} ote) Return filter and fan cooler are equipped as standard. ank apacity and otor/ump ombinations Standard Weight kg --*-**- ote). --*-**-. ote) {} --*-**-. /W ote). --*-**-. Single-phase 9 ote) --*-**-. ote). {} --*-**-. 9 ote) --*-**-. ote). {} --*-**-. /W ote) --*-**-. Single-phase ote). {} --*-**-. ote) xplanation of model o. Selecting a otor ischarge rate l/ min kw.kw.kw a.. ressure {kgf/cm }.. ank apacity (l) otor capacity (kw-) ump apacity (cm /rev) ottom oil pan loat switch (ontact on at fluid low limit S level) luid level gauge with temperature gauge (with guard) W Self eak est... l l l l l -

438 U V W odel o. imensions Q R R -- *-**- / --*-**- / --*-**- 9 9 / / -- *-**- φ / --*-**- 9 9 / 配線口 φ --*-**- --*-**- 9 --*-** φ 右回転 : 圧力上昇 9 9 左回転 : 圧力下降 --*-**- 9 φ -/ / 圧力調整ボルト --*-** φ Wiring hole Rc/ 9 Rc[] Rc[] Rc/ ressure adjusting bolt art o. art ame Right rotation: ressure up S Rc/ eft rotation: ressure down lug stopper **kw, luid tank 注油口兼エアーブリーザ * Suction strainer 吐出量調整ネジ (R) Uni-pump S 右回転 : 吐出量減少 Rc * ressure gauge 左回転 : 吐出量増大 ischarge rate S luid supply port/air breather adjustment screw Right rotation: Rate decreased R 9 luid level gauge Rotate left: Rate increased W ** Rc[] an cooler () Return filter (Q) ump input * R* 9 lexible hose Rc/ * R* lexible hose Rc ptions 油面計 art o. art ame 上限黄マーク Rc[] 取扱銘板 lug stoppers on opposite side R * uilt-in block ( ype) 下限赤マーク タンク Upper limit 検査済証 R* uilt-in block (R ype) W アース R -U V W ower limit luid level gauge with guard R S U V W 排油口 - φキリトオシ emperature switch W Rc R round R S U V W - (cable through hole) icroseparator () (). オプション 時 ( ) オプション 時 () Uni pump terminal box details φ ( ケーブル引込口 ) ottom oil pan il drain port Rc[R] or bolt S loat switch 矢視ユニポンプ端子箱詳細 luid level gauge with temperature gauge (with guard) () () or option () or option () W Self leak test uxiliary View φ esign rawings, imension ables () () () () () () () () () () () () () () or option オプション () 時 () **Wφ -φ drilling φ ption nstallation xample odel o. : ---SW- S * * Rc/ Rc/ Rc/ lug stopper lug stopper Rc/ Rc/ lug stopper Rc/ Rc/ Rc/ Rc/ Rc/ Rc/ W * Symbol.kW, * **Wφ lexible hose S ame Rc/ ydraulic Unit nd lates ote) art numbers and are standard with a built-in block. R W uxiliary View -9

439 Symbol Valve mounting surface mounting surface (S ----) ptions,,, escription mounting surface (S ----) ank apacity, l odel o. ype lock ( x ) - - ype lock ( x ) - - ype lock ( x ) - - ank apacity,, l ype lock ( x - ) -- (Standard ) -- (Standard ) ank imensions apacity ptions S l l l l l * and R* lock Specifications 9 / / 9 / / 9 9 / / 9 / / ump discharge port center ote) ote that there are certain restrictions on block-equipped combinations. See the Selection recautions on page -. Symbol ptions R, R, R, R escription ank apacity, l ump discharge port center odel o. R R ype lock ( x ) R- R- R R ype lock ( x ) R- R- R R ype lock ( x ) R- R- ank apacity,, l R R ype lock ( x - ) R-- (Standard ) R-- (Standard ) ank imensions apacity ptions S R l l l l l / / R 9. R 9 R / / R R 9. / / R 9 R / / Valve mounting surface mounting surface (S ----) mounting surface (S ----) ydraulic Unit * * to Rc to Rc S ump discharge port center ydraulic ircuit iagram lug stopper Rc/ (Rc/) Rc/ (Rc/) lug stopper Rc/ Rc/ or,r (x array) Rc/ * or,r (x array) Rc/ or,r (x array) (or,r) (x array) () Rc/ (Rc/) to Rc S ump discharge port center Rc/ (Rc/) R* to Rc * * ump discharge port center ote) ach block is shipped with plug stoppers in the and ports. * * R* ** kw, Rc/ Symbol ame lexible hose nd lates ote) art numbers and are standard with a built-in block. * ** φ ** -

440 ypical erformance haracteristics il emperature Rise haracteristics - ull utoff hese graphs show oil temperature rise during continuous operation. ank luid ressure = Room emperature + il emperature Rise Value perating luid: S V equivalent Revolution Speed: min - (z) --*- il temperature rise value --*- il temperature rise value ote) he oil temperature rise value depends on actual operating conditions, and so actual temperatures may be different from those indicated above. --*- oise haracteristics - easurement osition hese graphs show noise values at locations one meter in front of and behind the pump. S V equivalent il emperature: ± --*- oise value d () {.} {} {} ressure a{kgf/cm } {.} {} {} ressure a{kgf/cm } il temperature rise value ote) oise characteristics are affected by the condition of the floor and stand where the unit is mounted, whether there are noise reflective items nearby, and other factors. Such factors can produce different characteristics than those indicated below. z oise value d () {.} {} {} ressure a{kgf/cm } z ull cutoff --*- ressure a z ressure a z oise value d () --*- ressure a z oise value d () ressure a z ydraulic Unit oise value d () oise value d () ressure a ressure a -

441 ydraulic Unit Selection recautions Standard ccessories return filter with visual clogging inspection tool, and a fan cooler are equipped as standard. ptions z ptions * and R* cannot be selected for inclusion with an * pump (-**-*** ype). x or optional * and R* blocks, up to three blocks can be specified for size, and only one block can be specified for size. ote, however, that the total weight of blocks and valves should not exceed kg. ank apacity l, l lock ype R R R R lock Weight (kg) llowable dditional Weight (kg) ank apacity l, l, l lock ype R R R R lock Weight (kg) llowable dditional Weight (kg) ote) is the standard mounting tap for size. andling verview ydraulic perating luid z Use general oil-based operating fluid equivalent to viscosity grade S V or. ust contact us regarding options to petroleum based hydraulic operating fluid. he following is the viscosity grade and operating pressure. Up to.a: S V.a or higher: S V x ontaminated operating fluid can lead to malfunction and shortened pump life. anage operating fluid so that contamination is maintained at class S or lower. Startup recautions z efore starting the pump, inch the electric drive to make sure there is hydraulic fluid being sucked up. x heck to make sure that the operating fluid in the tank is at the prescribed level. Upper imit ark (Yellow): rescribed fluid level (nominal capacity) ower imit ark (Red): inimum fluid level c o not touch the surface of the pump while it is operating, it is very hot. djusting the ressure and ischarge Rate ressure adjusting bolt Right rotation: ncrease eft rotation: ecrease ischarge rate adjustment screw Right rotation: ecrease eft rotation: ncrease ressure gauge c, size solenoid valves and modular valves can be selected. v With option * and R*, block and cylinder piping is hoses, configured by achi. b ontact your agent for information about equipping a circuit. n ption is a bottom type oil pan. he oil pan does not have an oil drain port. he oil drain port is secured in place with the same mounting holes as the hydraulic unit. m ption W is a leak test performed by achi. ircuit onfiguration z llow for sufficient flexibility in the piping between the pack, external manifold, and actuator. (ose with a length of m or more is recommended.) aint z achi-ujikoshi standard color: ancel o. / (lacquer) owever, the electric drive is unsell o.. x ontact your agent about specifying external paint colors. lectrical Wiring z erform electrical wiring exactly as shown below. otor and ower Supply R U S V W f wiring is performed incorrectly... lectric pump rotates in reverse, fluid is not discharged ttach a pressure gauge to the discharge side and check for pressure rise. o not forget to ground the pump! fter wiring is complete, be sure to cover the terminal box with the cover that comes with it. o not forget to wire the fan motor of the fan cooler. he power supply is single-phase V, non-polarity. x rovide a no fuse breaker on the main power supply to protect electric circuitry against shorts and other current leakage, and as protection against motor overload. lso provide a leak breaker to protect against the risk of electric shock, etc. ir intake and xhaust z ake care so there is nothing blocking the area around air intake and exhaust of the pump drain fan cooler. lso, be sure to locate the pump in an well-ventilated area where heat will not build up. ransport and nstallation z Use the hangers when transporting the pump. x Since this is a stationary type pump, secure it with bolts on a vibration-free, level surface. aintenance and nspection z il emperature: Use the pump in an area where the temperature is to. x perating luid Replacement ycle: erform the initial fluid replacement after three months of operation. fter that, replace fluid when it becomes dirty or once a year, whichever comes first. c Strainer and ank nternal nspection and leaning: very three months v Return ilter lement nspection: very three months (replace as required) b an ooler in nspection and leaning: very six months nvironment z emperature: to x void areas exposed to mist of water-soluble coolants, etc. -

442 nverter rive SRS nverter rive / Series nergy-saving Variable ump Unit with nverter rive y adding an inverter drive to our / series standard variable pump unit, we created the inverter drive / series hydraulic units to achieve great energy savings. hey are great for jobs that need to dwell for long periods. ow increase in hydraulic oil temperature aintained at room temperature +.º. --- a maintained while dwelling % energy savings compared to the unitt --.V-R- a while dwelling (in contrast to standard unit). ower Supply Rated nput urrent. ressure djustment Range. utput low (heoretical Value at o-load). ydraulic luid eatures Specifications Quiet Sound level is d (). --- a while dwelling ne meter behind pump φ to V, /z 9./.kW ( series only)./.kw./.kw./.kw 9./.kW ( series only) :. to.a :. to.a :. to.a :. to.a :.l/min : 9.l/min : 9.l/min :.l/min :.l/min Standard mineral-based hydraulic fluid S V or. ydraulic il emperature to º. mbient emperature/umidity to º/ to %R (non-condensation). olor of nverter ox unsell o..y9/ (cream) asy peration an start as soon as power is turned on. bsolutely no external commands or delicate electrical adjustments needed. perates even with the inverter removed in emergencies. ydraulic Unit -

443 ydraulic Unit xplanation of model o. nverter rive Series. V ** nverter rive Series ** ontact us for more information. ption ( option) ressure adjustment range: See specification on previous page Variable control mechanism: ressure compensation type ischarge rate: See specification on previous page V: Variable piston pumps otor capacity.:.kw,.:.kw,.:.kw,.:.kw,.:.kw : nverter drive ank capacity: l, l, l, l, l ote) ption : ase block cannot be equipped. ption ( option) ote) ption * and R* blocks cannot be equipped. ressure adjustment range: See specification on previous page Variable control mechanism: ressure compensation type ischarge rate: See specification on previous page : Variable piston pumps otor capacity :.kw, :.kw, :.kw : nverter drive ank capacity: l, l, l, l, l esign rawings, imension ables recautions urning the inverter on and off by cutting the main power supply (circuit breaker) significantly reduces the life of the inverter and should be limited to once an hour. ontact us if you need to start and stop operations frequently. Use only the wiring methods described in the user documentation. o not change any settings, regarding the inverter parameters, except the parameters described in the setting procedures in the user documentation. llow for sufficient flexibility in the piping between the inverter-driven hydraulic unit and external manifolds or actuators. (Recommended) lexible hose that is at least meter long and has the following inside diameters. ump apacity nside diameter cm /rev / or / inch or cm /rev / inch or cm /rev inch *f the piping has a low capacity, the inverter's alarm may sound when the load fluctuates and the motor may stop. Some options are not compatible with the inverter drive models, contact us for more information. ontact us if excessive leakage in the external hydraulic circuit limits energy saving efficiency. -

444 WR SR ower eister servo motor controls hydraulic pump speed and direction. enerate pressure and flow to match the operating cycle of machinery and to stop during idle times. ncredible energy savings by only operating when necessary. lso, position, speed, and pressure are controlled with great precision by using a high-speed digital processing servo controller. eatures igh power with a maximum pressure. esigned so pump operates only when necessary for energy savings and low noise. reat energy savings compared to conventional hydraulic systems. igh-speed processing of the servo controller makes positioning on the order of μm possible. ompact all-in-one design saves space. (select either vertical or horizontal setup) low of hydraulic fluid ifting ump able ylinder ank rinciple of operation Rotating the motor forward brings hydraulic fluid to the head side of the cylinder which lifts the cylinder. Reversing the motor pushes hydraulic fluid to the rod side and pushes the cylinder down. he direction the pump rotates controls the direction of the cylinder, and the speed of rotation controls the speed. aintain pressure Switch by control valve is not required owering System onfiguration (Standard onfiguration) Signals to operate the cylinder (position, speed, and pressure) are sent from the control equipment to the servo controller and the hydraulic unit responds according to the signals. he servo controller receives feedback from sensors and accurately controls the cylinder so the deviation from the signals is. feedback system using position and pressure sensors makes it possible to accurately control position, speed, and thrust (pressure). bout ower eister qydraulic unit (US) wservo controller () eservo amp (compatible with motor mounted on item q) rotor cable (select from,, or meters) tncoder cable (select from,, or meters) yan cable (select from,, or meters)...or kw motor (uable to computer ( m)) t becomes offers. ote) ustomers must provide piping, wiring, hydraulic cylinder, sensors, control panel, and other equipment. (ontact us for information about cylinders and sensors.) otor orward ower meister otor stops Reverse ower meister ydraulic Unit -

445 ydraulic Unit Specifications ydraulic Unit otor ump perating mbient emperature/umidity emperature Range of ydraulic luid (º) Recommended ydraulic luid perating Viscosity Range egree of ontamination Safety Valve ressure djustment Range aximum Working ressure olor of aint US- odel o. servo motor (. to kw (servo amp drive)) ower supply -phase to V, /z (servo amp power supply) or kw only : an motor power supply Single-phase to V /z is required iston pump (. to.cm /rev) to +º/ to 9%R (non-condensation) to º (ote) Wear resistant hydraulic fluid S V to (V recommended) to mm /s {cst} S or better US- :. to a US-/ :. to a a (for hydraulic pump) (maximum operating pressure varies according to motor performance and options) lack otor utput kw ump apacity cm /rev aximum R min - (ote ) aximum low Rate l/min (ote ) ressure Rating a (ontinuous (ote )) aximum Working ressure a (Short term (ote )) US--* US--* US--* US--* US--* US--* US- odel o. US--* US--* US--* US--* US- odel o. US--* US--* US--9* US--* US--* US--* US--* US--* US--9* US--* US--* US--* US--* US--9* US--* US--* US--* US--9* US--* US--* US--* US--* US--*.. otor utput kw.. otor utput kw ump apacity cm /rev.... ump apacity cm /rev aximum R min - (ote ) aximum R min - (ote ) aximum low Rate l/min (ote ).... aximum low Rate l/min (ote ) ressure Rating a (ontinuous (ote )).... ressure Rating a (ontinuous (ote )) aximum Working ressure a (Short term (ote )) ank Size it. (nominal) V:. :. :o tanks (ote ) ank Size it. (nominal).. V:.9. :. 9. aximum Working ressure a (Short term (ote )) ank Size it. (nominal) o symbol:. :. :. ydraulic luid evel Range it. (estimate (ote )) V:. :. ydraulic luid evel Range it. (estimate (ote )) V:. :. ydraulic luid evel Range it. (estimate (ote )) ank capacity:o symbol V:., :. ank capacity: V:., :. ank capacity: V:., :. <Selection recautions> he ower eister is a hydraulic system that directly drives the hydraulic cylinder by accelerating, decelerating, or stopping a motor. ecause torque, separate from the motor torque needed to generate pressure, is needed to accelerate and decelerate, the maximum flow rate and maximum pressure may be lower than in the above table due to restrictions caused by the machinery's operating conditions. When you select a product, you first need to clarify the operating cycle and load of your machinery (the hydraulic cylinders that the ower eister will drive) in advance and then consult with us. (ote ) here is a limit to the operating pressure at maximum Rs due to the low torque that is characteristic of this motor's output at high Rs. (ote ) heoretical flow under no load. ctual flow varies according to load pressure. (ote ) Rated pressure is rated torque of the motor, maximum operating pressure is pressure output at % torque. owever, if this pressure exceeds a, the maximum operating pressure of the hydraulic unit is below a. lso, the maximum R and operating pressure may be limited depending on the acceleration, deceleration, and load conditions. larify your machinery's operating conditions first, and contact us for more information. (ote ) f the fluctuation in oil volume is greater than the allowed values an auxiliary tank can be connected to resolve this. ontact us for more information. (ote ) f your selection does not include a tank, then a separate oil tank is required. We can also manufacture oil tanks, so contact us for more information if you are interested. (ote ) he temperature of the hydraulic fluid is affected by many factors, such as the hydraulic unit's operating environment, operating methods, and load conditions. he customer must confirm the unit's actual continuous operating conditions. lso, long-term, continuous operation under pressure or high-frequency reciprocal operation may result in increased oil temperatures. herefore, operating pressure limits or installation of a cooling system may be necessary. ontact us for more information. -

446 Servo ontroller Servo mp odel o.: ---- ower Supply/onsumption V ±%/less than W Separate power supply for sensor is needed perating mbient emperature/umidity to +;/9% R or less (no condensation) ontrolled arameters ylinder position, speed, pressure ontrol mode automatic switching function available ommand nput nput Signals (ontact Signals) utput Signals Speed ommand ressure ommand osition ommand ressure Sensor nput osition Sensor nput Servo mp / nalog voltage ±V/maximum cylinder speed (*), cylinder extended by positive voltage, cylinder retracted by negative voltage nalog voltage ±V/maximum control pressure (*), positive voltage adds pressure to head side, negative voltage adds pressure to rod side osition selection contact signal ( contacts), target position selected by bit pattern of contacts, acceleration function generated in controller moves cylinder to target position (*) arameter setting (*) rimmer setting arget position, maximum speed, and acceleration set using internal parameters Servo on, alarm reset, control mode external switching, start point search start, start point retraction end point S, start point proximity S larm, servo ready, control mode monitor, start point search end/in position (also output), pressure consistency Uses pressure sensor with response time of ms nalog voltage. to.v, or to V (ch) or less. 9 phase difference biphasic pulse, start point pulse (line receiver input) or analog voltage to V (only with - option) utput: otor revolve command (analog voltage ±V), servo amp, servo alarm reset nput: Servo alarm, servo ready f using pulse output position sensor, start point search is necessary once after turning on the power ulse output positioning sensor: Uses sensor with resolution of µm or less nalog voltage output positioning sensor: Uses sensor with response time of ms or less ontrol anel digits with symbol, key input, selecter switch data setting/display, test run function onnector for controller, pins are attached. When you use the spacer for the servo controller (ption:zv---), the installation dimension becomes the same as the old design [- -(-)--]and the height from the mounding surface to the connector becomes almost the same. ydraulic Unit odel (US Series) otor utput kw ompatible Servo mp odel US--**. ---R- US--**. ---R- US--**. ---R- US--**. ---R- US--**. ---R- US--***. ---R- US--***. ---R- US--***. ---R- US--***. ---R- US--***. ---R- Remarks Regenerative resistor built in xternal regenerative resistor included ote ) ower: -phase to V, /z ote ) Separate motor cable and encoder cable are needed to connect the servo motor on the hydraulic unit. ote ) n auxiliary external regenerative resistor may need to be added in some operating conditions if the built-in or external regenerative resistor is not sufficient. or more details contact us with information about your operating conditions (load motion diagram). ote ) cable connector is included. ydraulic Unit -

447 ydraulic Unit xplanation of model o. ydraulic Unit US- US-/US- US US 9 V S S esign number esign number ifferential pressure valve larm switch options pressure adjustment range o symbol: o options : to a { to.kgf/cm } : With temperature switch ircuit option symbols S: With float switch o symbol: o circuit options ank capacity : With differential pressure valve (he tank capacity can be selected when using US-) Servo motor output o symbol:.it. :.kw :.it. :.kw :.it. :.kw Shut-off valve power supply nstallation orientation (shape) : V V: Vertical installation ifferential pressure valve pressure adjustment range : orizontal installation :. to a {. to.kgf/cm } : o tanks ircuit option symbols Variable pump capacity o symbol: o circuit options :.cm /rev : With differential pressure valve :.cm /rev S: With shut-off valve :.cm /rev Servo motor output ounting method :.kw : oot type mounting (ote: see the ydraulic unit specifications for other sizes) ump size nstallation orientation : Variable pump capacity,, V: Vertical installation : orizontal installation ower eister/integrated unit Variable pump capacity 9: 9.cm /rev (ote: see the ydraulic unit specifications for other sizes) ounting method : oot type mounting ump size : Variable pump capacity, : Variable pump capacity,, 9,,, ower eister/integrated unit able it Specification otor able it Q R esign number onnector shape o symbol: Straight plug : -shaped plug (here is no symbol when the motor capacity is.kw or.kw.) pplicable motor size :.kw, :.kw, :.kw :.kw, :.kw, :.kw :.kw, :.kw, :.kw, : kw pplicable motor type R: R series servo motor otor cable able length : m, : m, : m ncoder able it Q R esign number onnector shape o symbol: Straight plug : -shaped plug (here is no symbol when the connector type is.) onnector types : annon connector (or.kw to kw) : Screw connector (or.kw to. kw) pplicable motor type R: R series servo motor ncoder cable able length : m, : m, : m an able it Q esign number able to computer it onnector shape o symbol: Straight plug : -shaped plug an able it able length : m, : m, : m Q able length : m able to computer -

448 nstallation imension rawings US- Series ntegrated Unit US--*****(orizontal nstallation) US--*V****(Vertical nstallation) ump input (/) port side safety valve port side safety valve -φ 9 ote ) ump port side input pressure detection output port (/) (/) (pposite side: port side pressure detection output port) -φ 9 ote ) port side pressure detection output port (/) (pposite side: port side pressure detection output port) port (/) port (/) orizontal setup ump input Vertical setup il drain port (/) ote ) port orizontal side pressure setup detection ump output input port (/) (pposite side: port side pressure detection output port) Vertical setup il drain port (/) port side safety valve port (/) port (/) -φ 9 X. orizontal setup port side safety valve port ir side breather safety (nstall valve after filling) port (/) port (/) ir breather (nstall after filling) US odel o. pproximate Weight port side safety valve luid level gauge 9 9 luid level gauge 9 9 il drain port (/) il drain port (/) 9 ank connection port (/) Up (X.). ifferential pressure valve (ircuit option: ) *See the illustration to the left for the shape of the motor and connector for the encoder wiring. (or.kw motor output only) *See the illustration to the he external appearance of the.kw motor 9 Up (X.) ifferential pressure valve (ircuit option: ) Up. (X.). left for the shape of the motor and connector for the encoder wiring. (or.kw motor output only) US--* V 9 9 kg he external appearance of the.kw motor US--* V kg US--* V kg ote ) imensions in (parentheses) and two-dot chain lines are for circuit options. ote ) he air breather is included in the unit as a separate item. fter filling the tank with oil, install the air breather. ote ) nstall the unit in a mounting orientation prescribed by odel o. (: orizontal installation, V: Vertical installation) ote ) he port side pressure detection output port can only be used when there are no "" circuit options. US--*****(o tanks) ote ) port side pressure detection output port (/) (pposite side: port side pressure detection output port) port side safety valve X. orizontal setup -φ 9 port (/) port (/) port side safety valve 9 9 ank connection port (/) Up (X.) ifferential pressure valve (ircuit option: ) ifferential pressure valve (ircuit option: ) US odel o. pproximate Weight US--* kg US--* 9 kg US--* 9 kg ote ) imensions in (parentheses) and two-dot chain lines are for circuit options. ote ) n il tank will be required separately. We can also produce oil tanks. ontact us for requests for oil tanks. ote ) nstall horizontally or vertically. or vertical installation, install the servo motor facing down. ote ) When installing the oil tank horizontally, make sure the lowest fluid level position during the cylinder operation is always mm or greater from the bottom of the unit. (See illustration on the upper right: ounting layout for the oil tank) ote ) he port side pressure detection output port can only be used when there are no "" circuit options.. servo motor servo motor Up Up Vertical setup Vertical setup. luid supply port (/) ifferential pressure valve (ircuit option: ) luid supply port (/) ifferential pressure valve (ircuit option: ) luid level gauge port (/) luid level gauge -φ 9. port (/) port side safety valve -φ 9 il drain port (/) port side safety valve il drain port (/) (X.) (X.) ump otor port side safety valve ir breather (nstall after filling) port (/) port side safety valve port (/) ir breather (nstall after filling) ote ) port side pressure detection output port (/) (pposite side: port side pressure detection output port) ote ) port side pressure detection output port (/) (pposite side: port side pressure detection output port) ank mm or greater mm or greater Up Up he lowest tank fluid level ump otor ounting layout for the oil tank (orizontal setup) ank ounting layout for the oil tank (orizontal setup) he lowest tank fluid level ydraulic Unit -9

449 US- Series ntegrated Unit ircuit options: S (shut off valve) none US--*****(orizontal nstallation) x anging tap port side safety valve ump input (/) port side safety valve port side pressure detection output port (/) (pposite side: port side pressure detection output port) -φ port (/) () port (/) ifferential pressure valve (ircuit option: ) ir breather (nstall after filling) ircuit options: S (shut off valve) attached US--*****S(orizontal nstallation) luid level gauge Up ote ) US odel o. pproximate Weight US--* V 9 kg US--* V 9 kg ote ) imensions in (parentheses) and two-dot chain lines are for circuit options and alarm switch options and S. ote ) oes not include circuit or alarm switch options or weight of hydraulic fluid. ote ) he air breather is included in the unit as a separate item. fter filling the tank with oil, install the air breather. ote ) nstall the unit in a mounting orientation prescribed by odel o. (: orizontal installation, V: Vertical installation) emperature switch (larm switch option: ) loat switch (larm switch option: S) il drain port (/). US--*V****(Vertical nstallation) port (/) -φ x anging tap port side safety valve il drain port (/). luid supply port (/) emperature switch (larm switch option: ) loat switch (larm switch option: S) ir breather (nstall after filling) luid level gauge ifferential pressure valve (ircuit option: ) port (/) port side safety valve port side pressure detection output port (/) (pposite side: port side pressure detection output port) Up US--*V****S(Vertical nstallation). () ydraulic Unit x anging tap Shut off valve (ircuit option: S) ump input (/) port side pressure detection output port (/) (pposite side: port side pressure detection output port) -φ port (/) port (/) () port side safety valve port side safety valve *he dimension table and otes to are in common with when there is no circuit option:s (Shut off valve) ifferential pressure valve (ircuit option: ) ir breather (nstall after filling) luid level gauge Up emperature switch (larm switch option: ) loat switch (larm switch option: S) il drain port (/). port side safety valve port (/) -φ x anging tap Shut off valve (ircuit option: S) il drain port (/) luid supply port (/) emperature switch (larm switch option: ) loat switch (larm switch option: S) port side safety valve port (/) ir breather (nstall after filling) luid level gauge ifferential pressure valve (ircuit option: ) port side pressure detection output port (/) (pposite side: port side pressure detection output port) Up () -

450 US- Series ntegrated Unit US--******(orizontal nstallation) counterbore x hole -φ φ (ounter bore depth ). 9 x anging tap.. luid supply port (/) port (/) Servo motor hanging bolt (o not use for hanging the unit) 9 port side safety valve x port anging tap (/) port side safety valve ir breather (nstall after filling) emperature switch (larm switch option: ) ifferential pressure valve (ircuit option: ) Up US--**V****(Vertical nstallation) Shut off valve (ircuit option: S) loat switch (larm switch option: S) il drain port port loat switch (/) (larm switch option: S) port side Shut off valve safety valve (ircuit option: S) X. () X. ifferential pressure valve (ircuit option: ) emperature switch (larm switch option: ) x anging tap port (/) port side safety valve luid drain port 9 Up ir breather (nstall after filling) onnector for fan motor wiring ir intake otes.) or greater il drain port (/) () an motor xhaust xhaust X. () X φ φ counterbore x hole (ounter bore depth ) luid supply port (/) x anging tap Servo motor hanging bolt (o not use for hanging the unit) () he external appearance of a kw motor *or kw motor output only, the fan motor is provided. US odel o. US--** V ****- ote ) pproximate Weight kg US--** V **** kg US--** V ****- 9 kg US--** V ****- kg US--** V **** 9 9 kg US--** V ****- 99 kg US--** V ****- 9 kg US--** V **** kg US--** V ****- 9 kg US--** V ****- 9 kg US--** V **** 9 9 9kg US--** V **** kg US--** V ****- 9 kg US--** V **** kg US--** V ****- 999 kg ote ) imensions in (parentheses) and two-dot chain lines are for circuit options and S and alarm switch options and S. ote ) oes not include circuit or alarm switch options or weight of hydraulic fluid. ote ) he air breather is included in the unit as a separate item. fter filling the tank with oil, install the air breather. ote ) or kw motor output only, the fan motor is provided. When installing the unit, provide space of mm or greater for air intake of the fan motor. ote ) nstall the unit in a mounting orientation prescribed by odel o. (: orizontal installation, V: Vertical installation) ydraulic Unit -

451 .o. -US R. ydraulic circuit diagram (US-) ydraulic circuit diagram (US-, ) ifferential pressure valve (ircuit option: ) Safety valve Shut off valve (ircuit option: S) Safety valve n/out valve Safety valve idirectional rotary pump servo motor Vacuum heck Valves When maintaining the position of the cylinder during servo off is required (for example when preventing the cylinder from self-weight falling), additional circuits (for example shut-off valve) will be required. ontact us for more information. emperature switch (larm switch option: ) loat switch (larm switch option: S) * n/out valve idirectional rotary pump servo motor ifferential pressure valve (ircuit option: ) Vacuum heck Valves * Servo ontroller ---- o. S SRV RR ---- *** *.* * VR VR VR VR 9 RU X RX SW. -φ. 9 Wiring space pproximate Weight:.kg Servo mp.kw.kw otor.kw.kw otor.kw otor ydraulic Unit () pproximate Weight:.kg.kW.kW.kW otor () pproximate Weight:.kg.kW kw () pproximate Weight:.kg otor Regenerative resistor () () pproximate Weight:.kg pproximate Weight: 9.kg pproximate Weight:.kg -

452 erformance haracteristics ressure ommand Voltage - ressure haracteristics ( to %) Speed ommand Voltage - Speed haracteristics ( to %). (a) (min - ) ressure. il motor speed.. ommand voltage ommand V for a V V V command. (V) rom low pressure.a o high pressure a.. ommand voltage. (V) ommand V to min - rom low speed min - V V V command o high-speed min - (f oil motor is running as actuator) ressure Sine Wave Response. (a) Shape of command wave Shape of response wave Speed Sine Wave Response (min - ) Shape of command wave Shape of response wave ressure. il motor speed.. ime. (s) ommand z sine wave, amplitude to 9% welling ressure - ower onsumption haracteristics ydraulic unit (US) ump.cm /rev, otor.kw ower consumption [kw].... ower consumption at full cut off (Unipump.kW).kW.. nergy savings.9kw (pproximately %) t a dwelling pressure ime. (s) ommand z sine wave, amplitude to 9% (f oil motor is running as actuator)..kw. ower consumption ontrol equipment: Unipump.kW (variable piston pump). (power meister) ull cut off power consumption (=min - ) (ote) haracteristics vary depending on operating conditions. welling pressure[a] ydraulic Unit -

453 WR ower it ower fit is an energy-saving hydraulic unit that operates the variable piston pump with two capacities using an servo motor. eatures qnergy-saving, low-noise nergy-savings and low noise are achieved by rotating the pump for the required number of times only when it is necessary by the servo motor. verview wigh pressure, large flow rate y using the variable piston pump with two capacities, the two pump capacities switch between the low pressure large flow rate and high pressure small flow rate to control. e asy control of multi-stage pressure and flow rate y using external signals, patterns of changeover controls are possible. he pressure and flow rate can be freely set with the operation panel inside the control box. rompact y making the ower it energy-saving, the oil quantity will be reduced. ower it can be used to replace the existing hydraulic unit. he operating direction of the cylinder can be switched by the external directional control valve. ylinder speed (flow rate) and load (pressure) can be controlled freely by the controller. (Valves for controlling speed and pressure are unnecessary.) he controller automatically switches the flow rate control and pressure control according to the loaded condition. xternal signals (pen ollector signals) can be output in conjunction with the flow rate and pressure command. he directional control valve can be switched in conjunction with the commands. ress operation examples ylinder Stroke Sudden decrease Sudden increase Slow decrease ressure relief dd pressure ime t ydraulic Unit imit switch upper die imit switch bottom die work irectional ontrol Valve ump ank Servo motor pressure transducer ontroller Servo amp ower it Relay low rate ressure nergy saving efficiency due to load response control flow rate setting value ctual flow rate ime t nergy saving efficiency due to load response control ressure setting value ctual pressure ime t -

454 Specifications odel o. Q-*-V Q-*-Z Q--Z Q--Z otor capacity kw.... ump VS-- ZS-- ax. pump capacity cm /rev ump adjustment range high volume cm /rev to (ote ) (actory default : ) to (ote ) (actory default : ) ump adjustment range small volume cm /rev to (ote ) (actory default : ) to (ote ) (actory default : ) aximum R min - aximum flow rate l/min 9 ressure Rating a aximum Working ressure a ank Size it. ain circuit φ to V, /z ower supply control circuit φ to V, /z ower Supply apacity V.... mbient emperature/umidity to º/ to 9%(non-condensation) emperature Range of ydraulic luid to º Recommended ydraulic luid Standard mineral-based hydraulic fluid (equivalent to S Vs) ote ) he adjustment range of the pump high volume changes according to the setting of the small volume. or details see the user documentation. xplanation of model o. Q Z ** ption (ote ) esign number Solenoid power supply :V utoff pressure adjustment range ydraulic ircuit iagram : to a/: to a Variable control mechanism :ontrol two capacities ax. pump capacity :cm /rev(vs) :cm /rev(zs) ump type V:VS/Z:ZS otor apacity :.kw/:.kw :.kw/:.kw ontrol box : quipped on the hydraulic unit o symbol: none (Set inside the control panel, or separately positioned control box) ank capacity ///it. ower it ote ) :luid evel auge With uard, :With hermostat, :With icroseparator, :With il an S:loat Switch (ow fluid level detection), :luid evel auge With emperature auge (with guard) W:Self eak est (he return filter is standard equipment) ydraulic unit (ontrol box non-equipped type), ontrol equipment, able it ombinations ist ydraulic unit (ontrol box non-equipped type) odel o. (Q ellmount pump odel o.) Q--V- (UQ---V-) Q--Z- (UQ---Z-) Q--Z- (UQ---Z-) Q--Z- (UQ---Z-) ontrol equipment otor Select from the following capacity qq mplifier unit (kw) w Separately positioned control box (ote ) able it (Select from m or m). q Q-R- Q-QR--(m) w Q-R- Q-QR--(m). q Q-R- Q-QR--(m) w Q-R- Q-QR--(m). q Q-R- Q-QR--(m) w Q-R- Q-QR--(m). q Q-R- Q-QR--(m) w Q-R- Q-QR--(m) ump ressure sensor.s ote ) able it details ressure sensor cable ncoder cable otor cable ontrol equipment (ox) Rsturn filter * Servo motor * an cooler lug stopper ontrol box * ydraulic unit * an cable (kw only) Solenoid cable an cable ydraulic Unit -

455 - - esign rawings Q--V- Q ontrol ox R Rc/ (lug stopper) (U) Rc/ (pposite side: lug stopper) ressure sensor () Rc () S R il drain port Rc/ (lug stopper) 9 -φ holes () 9 () - to Upper limit: ower limit: () (9) (9) luid supply port/ air breather () art o. art ame Q'ty ank Strainer Uni-pump Servo motor oupling racket luid supply port/air breather Return filter 9 ressure gauge an cooler luid level gauge nti-vibration rubber ressure sensor Servo control box heck valve Q--Z- Q ontrol ox R.kW () () Rc/ (lug stopper) ydraulic Unit -φ drilling ressure sensor () () (pposite side: lug stopper) Rc / 9 to Rc / () Upper limit () ower limit () () luid supply port/ air breather () il drain port(rc/) () art o. art ame Q'ty ank strainer Uni-pump Servo motor oupling racket luid supply port/air breather Return filter 9 ressure gauge an cooler luid level gauge nti-vibration rubber ressure sensor Q ontrol ox heck valve -

456 Q--Z- an cooler Servo motor () Rc/ (lug stopper) Return filter () ouplings (9) ump luid supply port/ air breather Rc / ressure sensor Rc / ressure gauge () luid level gauge Upper limit ower limit ank () -φ il drain port R/ Strainer Q--Z- Servo motor () an cooler Rc/ (lug stopper) Return filter () ouplings ump (9) Rc / ressure sensor Rc / ressure gauge () luid supply port/ air breather ydraulic Unit luid level gauge Upper limit ower limit () ank -φ il drain port R/ Strainer -

457 Q ellmount pump, Q mplifier unit Q ellmount pumps, Q mplifier units of ower it are also available. lease contact our sales agent. Q mplifier unit for setting inside the control panel Q ellmount pump made by combining a pump and servo motor. ydraulic Unit -

458 YRU SSRS ydraulic ccessories achi hydraulic accessories are made possible through a long history of accumulated know-how, and provide you with the tools you need to configure the hydraulic circuits and systems you need. achi accessories not only maximize the performance of your hydraulic system, they also provide you with the versatility to configure the simplest, most economical solution for virtually any type of system imaginable. Use the illustration below to select the achi hydraulic accessories that best suit your needs. qstrainer wilter eir reather ragnet Separator tluid evel auge yluid Switch uemperature auge iressure auge oauge Valve!ressure Switch!il ooler!eater! hermostat!ccumulator!valves!rexible ose!ulti lamp ump hrottle Valve Solenoid Valve ontrol Valve ase lock ydraulic ylinder 9 R 9 * (ank port) * (ressure port) (ank port)* (ressure port)* (ressure port)* (ank port)* ydraulic ccessories or detailed specifications and dimensions of hydraulic accessories, see the "ydraulic ccessories atalog." roduct not covered by S9 registration -