IP65. Compact Direct Operated 2 Port Solenoid Valve. VDW Series. Aluminum Resin(PPS) g. Brass Stainless Steel. 15 mm mm

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1 ompact irect Operated Port Solenoid Valve Series RoHS ir Medium Water vacuum Lightweight 80 g 00 luminum/resin(pps) body () ompact ody material luminum Resin(PPS) g ir urrent rass body () Water urrent model 5 mm 7 mm luminum body VH Only for air. 4.5 mm 48 mm One-touch fitting ø, ø4, ø6 Resin body SX0 VQ ody material (ompared with, rass/stainless steel body) IP65.5 W 3 W nvironmental performance rass Stainless Steel Medium Water vacuum Power consumption () () rass body Stainless steel body 453 LVM

2 ompact irect Operated Port Solenoid Valve Series ir Medium Water vacuum nclosure IP65 Flame resistance UL94V-0 conformed Flame resistant mold coil material Improved armature durability Low-noise construction Metal noise reduced by the rubber damper Piping variations Screw piping, One-touch fitting IN () Power consumption.5 W () 3 W () Seal material NR (ir, Water) FKM (Medium vacuum) ody material OUT ir luminum () ir Water Resin(PPS) Water Medium vacuum rass, Stainless steel ody material ir Fluid Medium vacuum Water Size Orifice diameter /8 ø ø4 ø6 Other special options luminum Resin(PPS) rass/ Stainless steel (NR) (NR) (NR) (FKM) (NR) Size () Size () Size () Size () Size () Special voltage 48 V 0 V 40 V 4 V V G thread, NPT thread Note ) Oil-free Low concentration ozone resistant, eionized water Note ) (Seal material: FKM) With bracket The materials in ( ) are the seal materials. Note ) s standard for medium vacuum type. Note ) For air, water. 454

3 ompact irect Operated Port Solenoid Valve Series For ir Medium Vacuum Water Standard Specifications Valve specifications oil specifications Step Valve construction Withstand pressure MPa Max. system pressure Note 3) MPa ody material Seal material nclosure nvironment Rated voltage llowable voltage fluctuation llowable leakage voltage oil insulation type Solenoid oil Specifications Select the fluid. Item Select the fluid. (With a full wave rectifier) Normally losed (N..) Specification Size Power consumption (W) Note ) Temperature rise ( ) Note ) Size Size Note ) Power consumption, pparent power: The value at ambient temperature of 0 and when the rated voltage is applied. (Variation: ±0%) Note ) The value at ambient temperature of 0 and when the rated voltage is applied. The value depends on the ambient environment. This is for reference. Selection Steps Selection item Page ir Page 456 Water Page 460 Medium vacuum Page 458 irect operated poppet.0 (resin body type.5).0 luminum, Resin, rass, Stainless steel NR, FKM usttight, Low jetproof (IP65) Note ) Location without corrosive or explosive gases 00 V, 00 V, 0 V, 30 V, (0 V, 40 V, 48 V, 4 V) Note ) 4 V, ( V) Note ) ±0% of rated voltage 5% or less of rated voltage % or less of rated voltage lass e sure to read Specific Product Precautions before handling. Note ) Voltage in ( ) indicates special voltage. (Refer to page 46.) Note ) For enclosure, refer to Glossary of Terms on page 466. When using the product in a place which requires water resistance, please contact SM. Note 3) Refer to Glossary of Terms on page 466 for details on the maximum system pressure. Specification (With a full wave rectifier) Size Size Size Symbol 0 4 pparent power (V) Note ) ) Temperature rise ( ) Note 3) Note ) Power consumption, pparent power: The value at ambient temperature of 0 and when the rated voltage is applied. (Variation: ±0%) Note ) There is no difference in the frequency and the inrush and energized apparent power, since a rectifying circuit is used in the (with a full wave rectifier). Note 3) The value at ambient temperature of 0 and when the rated voltage is applied. The value depends on the ambient environment. This is for reference. 0 VH SX0 VQ LVM Step Select ody material, and Orifice diameter from Flow rate Pressure of each fluid. Item Select from Flow rate Pressure. ody material Orifice diameter Selection item Size ody material Orifice diameter Size Resin Symbol 0 Step 3 Select electric specifications. Item Select electric specifications. Selection item Voltage 4 V lectrical entry Symbol 0 Step 4 For other special options, refer to page

4 Series For ir Single Unit /Valve Specifications N.. Symbol Note) The symbol shows ports and as blocked, but there is actually a limit to the blocking capability when the pressure of port is greater than the pressure of port. Please contact SM when low leakage performance is required. Normally losed (N..) luminum ody Type Size, /8 Orifice diameter (mmø) 0 Flow rate characteristics show those when the port size is /8 (size ). Maximum operating Note ) Flow rate characteristics Note ) pressure differential (MPa) Weight [dm 3 /(s bar)] b v Pressurized port (g) Resin ody Type (uilt-in One-touch Fittings) Flow rate characteristics show those when the One-touch fitting with a port size of ø4 (size or ) is used. Size Orifice Maximum operating Note ) Flow rate characteristics Note ) diameter pressure differential (MPa) Weight (g) (mmø) [dm 3 /(s bar)] b v Pressurized port ø One-touch fitting 0 45 ø4 One-touch fitting ø4 One-touch fitting ø6 One-touch fitting Note ) The flow rate characteristics of this product have variations. When the highly precise flow control is required according to the system to be used, select an orifice diameter.3 times larger than that shown above and install a restrictor on the downstream side of the solenoid valve to make the adjustment. Note ) Refer to Glossary of Terms on page 466 for details on the maximum operating pressure differential. Fluid and mbient Temperature Fluid temperature ( ) mbient temperature ( ) 0 Note) to 50 0 to 50 Note) ew point temperature: 0 or less Valve Leakage Internal Leakage Seal material Leakage rate (ir) Note) cm 3 /min or less (Iuminum body type) NR 5 cm 3 /min or less (Resin body type) xternal Leakage Seal material Leakage rate (ir) Note) cm 3 /min or less (Iuminum body type) NR 5 cm 3 /min or less (Resin body type) Note) Leakage is the value at ambient temperature

5 ompact irect Operated Port Solenoid Valve Series For ir Single Unit How to Order (Single Unit) RoHS Size/Valve type Valve Symbol Size type Size () Size () Single unit N.. Single unit N.. ody material//orifice diameter Symbol F F G H J K L M N P Q ody material Resin (PPS) With bracket Resin (PPS) With bracket luminum 0 ø One-touch fitting ø4 One-touch fitting ø4 One-touch fitting ø6 One-touch fitting /8 Fluid 0 For air Orifice diameter Voltage/lectrical entry Symbol Voltage lectrical entry Z 4 V 00 V 0 V 00 V 30 V ommon Specifications Valve type N.. Seal material NR oil insulation type lass Thread type Rc One-touch fittings are attached to the resin body type. Other voltages For other special options, refer to page V 0 V Special voltage 40 V 4 V V Low concentration ozone resistant (Seal material: FKM) Oil-free G thread NPT thread With bracket (luminum body only) imensions Page 463 (Single unit) VH SX0 VQ LVM 457

6 Series For Medium Vacuum This valve can also be used with air. (Refer to the valve specifications on page 456 for air.) Single Unit /Valve Specifications N.. Symbol (pplication example) Used with vacuum Used with pressure Normally losed (N..) Size, /8 Orifice diameter (mmø) Note) The symbol shows ports and as blocked, but there is actually a limit to the blocking capability when the pressure of port is greater than the pressure of port. Please contact SM when low leakage performance is required. Flow rate characteristics show those when the port size is (size ) or /8 (size ). Flow rate characteristics Note ) Maximum operating Weight pressure differential [dm 3 /(s bar)] b v (MPa) Note ) (g) rass: Stainless steel: rass: 5 Stainless steel: Note ) The flow rate characteristics of this product have variations. When the highly precise flow control is required according to the system to be used, select an orifice diameter.3 times larger than that shown above and install a restrictor on the downstream side of the solenoid valve to make the adjustment. Note ) Refer to Glossary of Terms on page 466 for details on the maximum operating pressure differential. Fluid and mbient Temperature Fluid temperature ( ) Note) With no freezing mbient temperature ( ) Valve Leakage Internal Leakage Seal material to 50 0 to 50 FKM xternal Leakage Seal material FKM Leakage rate Note) 0 6 Pa m 3 /sec or less Leakage rate Note) 0 6 Pa m 3 /sec or less Note) Leakage (0 6 Pa m 3 /sec) is the value at 0. Pa abs and ambient temperature

7 ompact irect Operated Port Solenoid Valve Series For Medium Vacuum Single Unit How to Order (Single Unit) Fluid 4 For medium vacuum 4 RoHS ommon Specifications Valve type N.. Seal material oil insulation type Thread type Oil-free FKM lass Rc Size/Valve type ody material//orifice diameter Voltage/lectrical entry Symbol Size Symbol Symbol Voltage lectrical entry Size () Size () Valve type Single unit N.. Single unit N.. G H J K K L M N P Q R S T U V W ody material rass Stainless steel rass Stainless steel /8 /8 Orifice diameter.0.0 Z 4 V 00 V 0 V 00 V 30 V Other voltages For other special options, refer to page V 0 V Special voltage 40 V 4 V V G thread NPT thread With bracket VH imensions Page 463 (Single unit) SX0 VQ LVM 459

8 Series For Water Single Unit This valve can also be used with air. (Refer to the valve specifications on page 456 for air.) /Valve Specifications N.. Symbol Note) The symbol shows ports and as blocked, but there is actually a limit to the blocking capability when the pressure of port is greater than the pressure of port. Please contact SM when low leakage performance is required. Normally losed (N..) 37, Stainless Steel ody Type Size, /8 Orifice diameter (mmø).0 Flow rate characteristics show those when the port size is (size ) or /8 (size ). Maximum operating Note ) Flow rate characteristics Note ) pressure differential (MPa) Weight (g) Kv onversion v Pressurized port rass: 65 Stainless steel: 60 rass: 5 Stainless steel: 00 Resin ody Type Size ø One-touch fitting ø4 One-touch fitting ø4 One-touch fitting ø6 One-touch fitting Flow rate characteristics show those when the One-touch fitting with a port size of ø4 (size or ) is used. Orifice Maximum operating Note ) Flow rate characteristics Note ) Weight diameter pressure differential (MPa) (g) (mmø) Kv onversion v Pressurized port Note ) The flow rate characteristics of this product have variations. When the highly precise flow control is required according to the system to be used, select an orifice diameter.3 times larger than that shown above and install a restrictor on the downstream side of the solenoid valve to make the adjustment. Note ) Refer to Glossary of Terms on page 466 for details on the maximum operating pressure differential. Fluid and mbient Temperature Fluid temperature ( ) mbient temperature ( ) to 50 0 to 50 Note) With no freezing Valve Leakage Internal Leakage Note ) Internal leakage when pressure is supplied to Port (IN). Seal material Leakage rate (Water) Note ) 0. cm 3 /min or less (37, Stainless steel body type) NR cm 3 /min or less (Resin body type) xternal Leakage Seal material Leakage rate (Water) Note ) 0. cm 3 /min or less (37, Stainless steel body type) NR cm 3 /min or less (Resin body type) Note ) Leakage is the value at ambient temperature

9 ompact irect Operated Port Solenoid Valve Series For Water Single Unit How to Order (Single Unit) RoHS Size () Size () Single unit N.. Single unit N.. F G H J K F G H J K L M N P Q R S T U V W Resin (PPS) (With bracket) rass Stainless steel Resin (PPS) (With bracket) rass Stainless steel ø One-touch fitting ø4 One-touch fitting ø4 One-touch fitting ø6 One-touch fitting /8 /8 Fluid For water Z 4 V 00 V 0 V 00 V 30 V ommon Specifications Valve type N.. Seal material NR oil insulation type lass Thread type Rc One-touch fittings are attached to the resin body type. Size/Valve type ody material//orifice diameter Voltage/lectrical entry Valve ody Orifice Symbol Size Symbol Symbol Voltage lectrical entry type material diameter Other voltages For other special options, refer to page V 0 V Special voltage 40 V 4 V V eionized water (Seal material: FKM) Oil-free G thread NPT thread racket interchangeable with old type With bracket (rass, Stainless steel body only) imensions Page 463 (Single unit) VH SX0 VQ LVM 46

10 Series Other Special Options U lectrical options (Special voltage) 0 Z nter standard product number. lectrical option lectrical option (Special voltage) Specification Special voltage Symbol Voltage 48 V 0 V 40 V 4 V V lectrical entry pplicable for air type ( 0) and water type ( ). When G or NPT is selected, choose the /8 port size standard model. 3 When M6 is selected, choose the port size standard model. 4 When using deionized water or any other fluid that may corrode 37 (brass), select a stainless steel body. Other options (Low concentration ozone resistant, eionized water, oil-free, special thread) 0 Z nter standard product number. Other option (Low concentration ozone resistant, eionized water, oil-free, special thread) Low concentration ozone, 4, 3 Symbol resistant, eionized water Oil-free Special (Seal material: FKM) thread Nil Z (Standard) G/8 NPT/8 M6 (Standard) G/8 NPT/8 F G M6 (Standard) H G/8 J NPT/8 K L M6 (Standard) M G/8 N NPT/8 P M6 racket interchangeable with old type The brackets are interchangeable with brackets of old 0/0 series. For details of exterior dimensions, please contact SM. nter standard product number. racket interchangeable with old type (Shipped together) nter standard product number. With bracket (Shipped together) Y x ø3.4 W Mounting hole M U X X X [mm] racket part no. Size M U W X Y : S-- : S-- nter symbols in the order to the right when ordering a combination of electrical option, other options, and bracket interchangeable with old type. onstruction Normally closed (N..) ody material: luminum, PPS resin, rass, Stainless steel xample) 0 Z Z X lectrical option Other option racket interchangeable with old type ody material: PPS resin (One-touch fitting type) q w e r t y u q w e r t y u IN omponent Parts No. escription Solenoid coil Fixed armature 3 Tube 4 Return spring 5 rmature assembly 6 Seal 7 ody 46 OUT Material u + Fe + Resin Fe Stainless steel Stainless steel NR, FKM, Stainless steel, PPS resin NR, FKM luminum, PPS resin, rass, Stainless steel IN omponent Parts No. escription Solenoid coil Fixed armature 3 Tube 4 Return spring 5 rmature assembly 6 Seal 7 ody 8 racket OUT i Material u + Fe + Resin Fe Stainless steel Stainless steel NR, FKM, Stainless steel, PPS resin NR, FKM PPS resin SP

11 ompact irect Operated Port Solenoid Valve Series imensions/single Unit ir Medium Water vacuum ody material luminum x ø3.4 Mounting hole Y W U X 300 Q F R Full wave rectifier ( type) x P G Mounting bracket dimensions (X) lectrical entry F P G U W X Y Q R, / [mm] VH SX0 VQ LVM Made to Order <Special lead wire length> Produced upon receipt of order. Please contact SM for lead times. XL Lead wire length XL 600 mm XL 000 mm XL3 500 mm XL mm 463

12 Series imensions/single Unit ir, Medium Vacuum, Water ody material Resin With One-touch fittings x ø3.4 Mounting hole Y W U X 300 Q F R Full wave rectifier ( type) For information on handling One-touch fittings and appropriate tubing, refer to page 69 and the KQ series One-touch fittings (est Pneumatics No. 7). x P One-touch fitting P F [mm] ø, ø ø4, ø Mounting bracket dimensions lectrical entry One-touch fitting P U W X Y Q R ø, ø ø4, ø /M6 x ø3.4 Mounting hole Y W U X 300 Q F R Full wave rectifier ( type) x P P F [mm] (M6) (M6) Mounting bracket dimensions lectrical entry P U W X Y Q R (M6) (M6)

13 ompact irect Operated Port Solenoid Valve Series imensions/single Unit ody material rass x ø3.4 Mounting hole Y W ir Medium Water vacuum U X 300 Q F R Full wave rectifier ( type) x P G P F [mm] Mounting method J K M M.5 4, / M3 5 5 x J thread depth K M x ø3.4 Mounting hole Y W U X Mounting bracket dimensions (X) lectrical entry P G U W X Y Q R , / VH ody material Stainless Steel SX0 VQ LVM 300 Q F R Full wave rectifier ( type) P F [mm] Mounting method J K M x P G M M.5 4, / M3 5 5 Mounting bracket dimensions (X) lectrical entry P G U W X Y Q R , / x J thread depth K 465

14 Series Glossary of Terms Pressure Terminology. Maximum operating pressure differential The maximum pressure differential (the difference between the inlet and outlet pressure) which is allowed for operation. When the outlet pressure is 0 MPa, this becomes the maximum operating pressure.. Maximum system pressure The maximum pressure that can be applied inside the pipelines (line pressure). [The pressure differential in the solenoid valve portion must be less than the maximum operating pressure differential.] 3. Withstand pressure The pressure in which the valve must be withstood without a drop in performance after holding for one minute under prescribed (static) pressure and returning to the operating pressure range. [value under the prescribed conditions] Others. Material NR: Nitrile rubber FKM: Fluororubber. Oil-free treatment The degreasing and washing of wetted parts 3. Symbol Symbol ( ) IN and OUT are in a blocked condition ( ), but actually in the case of reverse pressure (OUT> IN), there is a limit to the blocking. Product with flow direction with pressure supplied to port and universal specification product are available as specials. lectrical Terminology. Surge voltage high voltage which is momentarily generated by shutting off the power in the shut-off area.. nclosure degree of protection defined in the JIS 090: Waterproof test of electric machinery/appliance and the degree of protection against the intrusion of solid foreign objects. Verify the degree of protection for each product. IP Second characteristic numeral First characteristic numeral First haracteristics: egrees of protection against solid foreign objects 0 Non-protected Protected against solid foreign objects of ø50 mm and greater Protected against solid foreign objects of ø mm and greater 3 Protected against solid foreign objects of ø.5 mm and greater 4 Protected against solid foreign objects of ø.0 mm and greater 5 ust-protected 6 usttight Second haracteristics: egrees of protection against water Non-protected Protected against vertically falling water drops Protected against vertically falling water drops when enclosure tilted up to 5 Protected against rainfall when enclosure tilted up to 60 Protected against splashing water Protected against water jets Protected against powerful water jets Protected against the effects of temporary immersion in water Protected against the effects of continuous immersion in water ripproof type ripproof type Rainproof type Splashproof type Low jetproof type Strong jetproof type Immersible type Submersible type xample) IP65: usttight, Low jetproof type Low jetproof type means that no water intrudes inside an equipment that could hinder from operating normally by means of applying water for 3 minutes in the prescribed manner. Take appropriate protection measures, since a device is not usable in an environment where a droplet of water is splashed constantly. 466

15 Series Specific Product Precautions e sure to read this before handling the products. Refer to back page 50 for Safety Instructions and pages 7 to 9 for Port Solenoid Valve for Fluid ontrol Precautions. Warning esign. annot be used as an emergency shutoff valve, etc. The valves presented in this catalog are not designed for safety applications such as an emergency shutoff valve. If the valves are used in this type of system, other reliable safety assurance measures should also be adopted.. xtended periods of continuous energization The solenoid coil will generate heat when continuously energized. void using in a tightly shut container. Install it in a well-ventilated area. Furthermore, do not touch it while it is being energized or right after it is energized. 3. Liquid rings In cases with a flowing liquid, provide a bypass valve in the system to prevent the liquid from entering the liquid seal circuit. 4. ctuator drive When an actuator, such as a cylinder, is to be driven using a valve, take appropriate measures to prevent potential danger caused by actuator operation. 5. Pressure (including vacuum) holding It is not usable for an application such as holding the pressure (including vacuum) inside of a pressure vessel because air leakage is entailed in a valve. 6. When an impact, such as water hammer, etc., caused by the rapid pressure fluctuation is applied, the solenoid valve may be damaged. Give an attention to it. Selection Warning. Fluid ) Type of fluid efore using a fluid, check whether it is compatible with the materials of each model by referring to the fluids listed in this catalog. Use a fluid with a kinematic viscosity of 50 mm /s or less. If there is something you do not know, please contact SM. ) Flammable oil, Gas onfirm the specification for leakage in the interior and/or exterior area. 3) orrosive gas annot be used since it will lead to cracks by stress corrosion or result in other incidents. 4) epending on water quality, a brass body can cause corrosion and internal leakage may occur. If such abnormalities occur, exchange the product for a stainless steel body. 5) Use an oil-free specification when any oily particle must not enter the passage. 6) pplicable fluid on the list may not be used depending on the operating condition. Give adequate confirmation, and then determine a model, just because the compatibility list shows the general case. Warning Selection. Fluid quality <ir> ) Use clean air. o not use compressed air that contains chemicals, synthetic oils including organic solvents, salt or corrosive gases, etc., as it can cause damage or malfunction. ) Install an air filter. Install air filters close to the valves on the upstream side. filtration degree of 5 µm or less should be selected. 3) Install an aftercooler or air dryer, etc. ompressed air that contains excessive drainage may cause malfunction of valves and other pneumatic equipment. To prevent this, install an aftercooler or air dryer, etc. 4) If excessive carbon powder is generated, eliminate it by installing mist separators at the upstream side of valves. If excessive carbon powder is generated by the compressor, it may adhere to the inside of the valves and cause a malfunction. Refer to est Pneumatics No.7 for further details on compressed air quality. <Vacuum> Please be aware that there is a range of pressure that can be used. tmospheric pressure Low ir pressure vacuum Medium vacuum vacuum High Ultra high vacuum Hydraulic pressure <Suction filtration, Vacuum bottle set, Suction cup> ifferential pressure Torr (mmhg) Pa rying ischarge/plasma <ccelerator, lectron microscope> Vapor deposition harged particle beam Neon tube/fluorescent light Surface physics xtreme high vacuum Vacuum piping direction: if the system uses a vacuum pump, we ask that you install the vacuum pump on the secondary side (Port ). lso, install a filter on the primary side (Port ), and be careful that no foreign object is picked up. Please replace the valve after operating the device approximately 300,000 times. VH SX0 VQ LVM 467

16 Series Specific Product Precautions e sure to read this before handling the products. Refer to back page 50 for Safety Instructions and pages 7 to 9 for Port Solenoid Valve for Fluid ontrol Precautions. Selection Warning <Water> The use of a fluid that contains foreign objects can cause problems such as malfunction and seal failure by promoting wear of the valve seat and armature and by sticking to the sliding parts of the armature etc. Install a suitable filter (strainer) immediately upstream from the valve. s a general rule, use 00 mesh. The supply water includes materials that create a hard sediment or sludge such as calcium and magnesium. Since this scale and sludge can cause the valve to malfunction, install water softening equipment, and a filter (strainer) directly upstream from the valve to remove these substances. Tap water pressure: The water pressure for tap water is normally 0.4 MPa or less. However, in places like a high-rise building, the pressure may be.0 MPa. When selecting tap water, be careful of the maximum operating pressure differential. When using water or heated water, poor operation or leaks may be caused by dezincification, erosion, corrosion, etc. The brass (rass) body of this product uses dezincification resistant material as a standard. We also offer a stainless steel body type with improved corrosion resistance. Please use the one that fits your needs. 3. mbient environment Use within the operable ambient temperature range. heck the compatibility between the product s composition materials and the ambient atmosphere. e certain that the fluid used does not touch the external surface of the product. 4. ountermeasures against static electricity Take measures to prevent static electricity since some fluids can cause static electricity. 5. Low temperature operation ) The valve can be used in an ambient temperature of between 0 to 0. However, take measures to prevent freezing or solidification of impurities, etc. ) When using valves for water application in cold climates, take appropriate countermeasures to prevent the water from freezing in tubing after cutting the water supply from the pump, by draining the water etc. When warming by a heater etc., be careful not to expose the coil portion to a heater. Installation of a dryer, heat retaining of the body is recommended to prevent a freezing condition in which the dew point temperature is high and the ambient temperature is low, and the high flow runs. Selection aution. Leakage voltage When the solenoid valve is operated using the controller, etc., the leakage voltage should be the product allowable leakage voltage or less. Particularly when using a resistor in parallel with a switching element and using a -R element (surge voltage suppressor) to protect the switching element, take note that leakage current will flow through the resistor, -R element, etc., creating a possible danger that the valve may not turn off. Power supply Switching element OFF R Leakage current Mounting Leakage voltage SOL. /lass built-in full wave rectifier coil: 5% or less of rated voltage coil: % or less of rated voltage. Selecting model Material depends on fluid. Select optimal models for the fluid. Warning. If air leakage increases or equipment does not operate properly, stop operation. fter mounting is completed, confirm that it has been done correctly by performing a suitable function test.. o not apply external force to the coil section. When tightening is performed, apply a wrench or other tool to the outside of the piping connection parts. 3. Mount a valve with its coil position upwards, not downwards. When mounting a valve with its coil positioned downwards, foreign objects in the fluid will adhere to the iron core leading to a malfunction. specially for strict leakage control, such as with vacuum applications and non-leak specifications, the coil must be positioned upwards. 4. o not warm the coil assembly with a heat insulator, etc. Use tape, heaters, etc., for freeze prevention on the piping and body only. They can cause the coil to burn out. 5. Secure with brackets, except in the case of steel piping and copper fittings. 6. void sources of vibration, or adjust the arm from the body to the minimum length so that resonance will not occur. 7. Painting and coating Warnings or specifications printed or labeled on the product should not be erased, removed or covered up. 468

17 Series Specific Product Precautions 3 e sure to read this before handling the products. Refer to back page 50 for Safety Instructions and pages 7 to 9 for Port Solenoid Valve for Fluid ontrol Precautions. Piping Warning. uring use, deterioration of the tube or damage to the fittings could cause tubes to come loose from their fittings and thrash about. To prevent uncontrolled tube movement, install protective covers or fasten tubes securely in place.. For piping the tube, fix the product securely using the mounting holes so that the product is not in the air. aution. Preparation before piping efore piping is connected, it should be thoroughly blown out with air (flushing) or washed to remove chips, cutting oil and other debris from inside the pipe. Install piping so that it does not apply pulling, pressing, bending or other forces on the valve body.. void connecting ground lines to piping, as this may cause electric corrosion of the system. 3. Tighten threads with the proper tightening torque. When using steel piping, tighten with the proper tightening torque shown below. Lower tightening torque will lead into fluid leakage. Tightening Torque for Piping onnection thread Proper tightening torque (N m) to.5 M6 to.5 Rc/8 7 to 9 For resin bodies, the proper tightening torque is 0.4 to 0.6 N m (reference value). fter tightening by hand, tighten by an additional /6th rotation with a tightening tool. 4. onnection of piping to products When connecting piping to a product, refer to its operation manual to avoid mistakes regarding the supply port, etc. 5. Winding of sealant tape When connecting pipes, fittings, etc., be sure that chips from the pipe threads and sealing material do not enter the valve. Furthermore, when sealant tape is used, leave.5 to thread ridges exposed at the end of the threads. xpose approx. threads Winding direction Sealant tape 6. In applications such as vacuum and non-leak specifications, use caution specifically against the contamination of foreign objects or airtightness of the fittings. Recommended Piping onditions. When connecting tubes using one-touch fittings, provide some spare tube length shown in Fig., recommended piping configuration. lso, do not apply external force to the fittings when binding tubes with bands, etc. (see Fig..) Tube size ø ø4 ø6 Straight portion Mounting pitch Fig. Recommended piping configuration Mounting pitch Nylon tube Soft nylon tube Polyurethane tube 44 or more 56 or more 84 or more Recommended 9 or more 30 or more 39 or more Wiring 5 or more 6 or more 39 or more Unacceptable Fig. inding tubes with bands Unit: mm Straight portion length 6 or more 0 or more 30 or more aution. s a rule, use electric wire with a cross sectional area of 0.5 to.5 mm for wiring. Furthermore, do not allow excessive force to be applied to the lines.. Use electric circuits which do not generate chattering in their contacts. 3. Use voltage which is within ±0% of the rated voltage. In cases with a power supply where importance is placed on responsiveness, stay within ±5% of the rated value. The voltage drop is the value in the lead wire section connecting the coil. VH SX0 VQ LVM 469

18 Series Specific Product Precautions 4 e sure to read this before handling the products. Refer to back page 50 for Safety Instructions and pages 7 to 9 for Port Solenoid Valve for Fluid ontrol Precautions. aution Operating nvironment Warning. o not use in an atmosphere having corrosive gases, chemicals, sea water, water, water steam, or where there is direct contact with any of these.. o not use in explosive atmospheres. 3. o not use in locations subject to vibration or impact. 4. o not use in locations where radiated heat will be received from nearby heat sources. 5. mploy suitable protective measures in locations where there is contact with water droplets, oil or welding spatter, etc. Warning Maintenance. Removing the product The valve will reach a high temperature when used with high temperature fluids. onfirm that the valve temperature has dropped sufficiently before performing work. If touched inadvertently, there is a danger of being burned. ) Shut off the fluid supply and release the fluid pressure in the system. ) Shut off the power supply. 3) Remove the product.. Low frequency operation Switch valves at least once every 30 days to prevent malfunction. lso, in order to use it under the optimum state, conduct a regular inspection once a half year.. Filters and strainers ) e careful regarding clogging of filters and strainers. ) Replace filter elements after one year of use, or earlier if the pressure drop reaches 0. MPa. 3) lean strainers when the pressure drop reaches 0. MPa.. Lubrication When using after lubricating, never forget to lubricate continuously. 3. Storage In case of long term storage after use with heated water, thoroughly remove all moisture to prevent rust and deterioration of rubber materials, etc. 4. xhaust the drainage from an air filter periodically. Operating Precautions Warning When problems are caused by a water hammer, install water hammer relief equipment (accumulator, etc.), or use an SM water hammer relief valve (VXR series). For details, please consult with SM. 470 aution Operating Precautions When operating the product with flow direction with pressure supplied to port, there is a risk of the valve opening momentarily and fluid leaking to the downstream side due to a rapid increase of the upstream pressure. special product will be available when holding pressure supplied from port in the flow direction with low leakage performance is required. Universal specification special can be available for Universal Specification, where product operation can be both flow from port to port ( ) and from port to port ( ). aution lectric onnections lass coil: WG0 Outside insulator diameter of.8 mm port q w aution [ circuit] (+, ) (, +) lectric ircuits Varistor Lead wire color Rated voltage q w 00 V 00 V Other lack lue Red Gray Red lue Red Gray There is no polarity. SOL. [ circuit] For (lass ), the standard product is equipped with surge voltage suppressor. Rectifier element SOL. One-touch Fitting aution For information on handling One-touch fittings and appropriate tubing, refer to page 469 and the KQ series One-touch fittings (est Pneumatics No. 7).