Variable Displacement Piston Pumps PISTON PUMP

Transcription

1 Variable Displacement Piston Pumps

2 2 VRIBLE DISPL. - P**V SERIES Model P6V P2V Max. WkgPress MPa Max. Speed Displacement cm 3 /rev Page min - P3V P**V Series P4V P7V PV P3V The P**V Series high performance variable axial piston pump offers a wide range of displacements, a wealth of features, energy-saving design, low noise, high speed, electronics compatibility to meet the diverse needs of users in the machine tool, general industrial machinery, mobile construction markets, etc. Low noise: approx. 68.5dB() [P7V] at pressure, 2 MPa and speed, 8 min -. Offers many types of pump control functions: (single stage, multi-stage, proportional) pressure compensator control, load sensing control, self-pressurized dual pressure dual flow control, electric direct control, etc. In addition, configurations which include manifold blocks which incorporate various function valves can be mounted at the delivery port, with a capacitor-like function which reduces pulsations are possible which simplify hydraulic circuits and reduce noise. Var. Piston Pump Principle of Operation Control Example ( Compensator) side: Pistons pushed against swash plate Piston Compensator spool Yoke actuator Spring port Valve plate Shaft Swash plate Shoe plate Press. setting spring Suction port Cylinder block dj. Screw Yoke Suction side : Pistons pulled by shoe plate Cyl. block Piston Max. Yoke angle When Pump del. approaches setting pressure. compensator spool is actuated and pressurized oil is fed to control piston which acts to reduce pump delivery

3 HIGH PRESSURE VRIBLE DISPL. PH SERIES Model PH Series PH8 PH PH3 Max. WkgPress MPa * Rated pressure 28 *2 Intermittent pressure 3 Max. Speed min - Displacement cm 3 /rev Page NOTE: * Intermittent pressure refers to less than % of operating cycle (max.6 seconds). Consult Tokimec for working pressure above rated pressure. *2 Rated pressure of electro-direct control EDHS pump is 2 MPa which is set by the relief valve The PH Series is a 28 MPa-rated low noise variable axial piston pump in a compact configuration. * Low operation noise: highly rigid pump construction and proprietary noise reduced design enables low operational sound levels. * Long life: high efficiency design with 28MPa rated pressure * Superior controllability: in addition to pressure compensator control, load sensing control, and electric direct control, torque limiter control is also offered. * Wide array of configuration: direct coupled same displacement double pump, direct coupled fixed double, triple pump combinations Var. Piston Pump Principle of Operation Control Example ( Compensator) side:pistons pushed against swash plate Piston Compensator spool Press. setting spring dj. screw Cyl. block Valve plate Shaft P C T Control piston port Suction port Cylinder block Swash plate Shoe plate Del. Suction Suction side : Pistons pulled by shoe plate Yoke Max. Yoke angle When pump del. approaches setting pressure. Compensator spool is actuated and pressurized oil is fed to control piston which acts to reduce pump delivery

4 4 Notes On Operation Installation and Shaft lignment The space for the electric motor and pump should offer sufficient rigidity. Vibration absorbing construction is recommended. Flexible type coupling is recommended to join the drive shaft of the prime mover and the pump shaft. (However use of tire shaped coupling is NOT REC- OMMENDED.) Recommended shaft alignment value, TIR (Total Indicator Reading) is below.5mm. However this may differ according to type of coupling used and coupling method employed. Please consult with TOKIMEC regarding shaft alignment value in this case. Poor shaft alignment may cause shaft damage, heat and friction of bearings, leakage from oil seals, pump noise and vibration, etc. Thus shaft should be aligned with care. In principle, there should be no external radial or thrust loads on the shaft end. Please consult with TOKIMEC is belts, chains, or gears are to be used to drive the pump. Care should be paid that no air remains in the pump case. Pump should be mounting with drain port up. Pump shaft should be installed horizontally. Piping and Filtration Filtration On the suction side, a µm (5 mesh) or equivalent tank filter (suction filter) should be used. On the delivery side, a bypass filter which provides filtration of less than 2µm should be installed. Suction pressure (gauge pressure) For mineral oil based fluids pressure should be in the range +35 ~ -6.7kPa and for water glycol, +35 ~ -.kpa. Suction path flow velocity should be kept at less than max..5 m/s. Suction, return piping Stipulated suction pressure should be considered and suction resistance should be kept as low as possible.. Use large diameter pipe with as few bends as possible. 2. Height from pump suction port to tank standard oil level should be less than m. Distance from suction piping end to tank bottom should be more than 5mm. ir in system causes noise, vibration, and parts damage. s air can easily be drawn in through suction piping, care should be paid to insure that joints, especially, are airtight. baffle should be installed in the tank between the suction and return lines. Use of flexible rubber hose piping instead of steel piping for pump suction, delivery, and drain lines provides effective vibration dampening and reduces noise. Drain piping in pump case should not exceed 5kPa. Drain piping should be installed on the upward side of the pump and the pump case should always be filled with oil. Drain line should be led to tank separate and should not be mixed with the flow from the return piping and should be installed so that it is set apart from the suction pipe and should also extend below the oil level in the tank.

5 Operation Start-Up Filling oil Pump should be filled with clean oil through the drain port and fill ports and the pump case should be filled completely. Improper or insufficient oil filling will lead to pump problems. Drain port Model Displ. ml P6V 7 P2/3V 8 P4V P7V 5 PV 2 P3V 23 PH8 6 PH 25 PH3 37 ir bleed t startup of pump operation, pump should be run at no load, maximum flow until air is completely bleed from piping and pump case. Effective air bleed can be accomplished if an air bleed valve is installed on the pump delivery side. For details on the air bleed valve, see page R5. Warm up If oil viscosity is above the recommended 54mm 2 /s, run pump at less than /2 maximum working pressure to warm the hydraulic fluid. Hydraulic fluid Note that pump specifications such as maximum working pressure and maximum speed may differ with the type of hydraulic fluid used. See ttachment regarding hydraulic oil selection. Mineral based oil General industrial anti-wear hydraulic fluid is recommended. Water glycol based hydraulic oil Do not use this fluid with the standard pump intended for mineral oil based fluids. Consult TOKIMEC regarding specifications for pump using this fluid. Hydraulic fluid viscosity and temperature Pump should be operated with hydraulic fluid viscosity range of 3 ~ 54 mm 2 /s. t pump startup a maximum viscosity of 86 mm 2 /s is allowed however care should be paid to observe the section 'Cautions at Operation Startup' regarding warm up of hydraulic fluid. Hydraulic fluid temperature range should be ~ 6 C. Pump Control djustment compensator control Turning the compensator adjustment screw clockwise will increase the setting pressure, turning it counterclockwise will decrease the setting pressure. * Maximum displacement adjustment function This function allows adjustment of full flow displacement. Turning the adjustment screw clockwise will decrease the full flow displacement, turning the screw counterclockwise will increase the displacement. Yoke Yoke ctuator Max. displ. adjuster Decrease dj. Screw Increase Torque limiter control This function adjusts delivery volume to match the allowable load of the electric motor used to drive the pump. Turning the adjustment screw clockwise will increase the delivery and turning the screw counterclockwise will decrease the delivery. Torque limiter flow adj. screw 5

6 6 Low Noise Variable Displ. Piston Pumps P**V Series This pump series offers low noise, high performance, and reliability with various functions for fast response and stability with a variety of controls such as electric direct control, pressure compensator, and load sensing. Double pump configurations to meet system needs are also available. These pumps are ideal for customer needs for energy saving, high speed, and low noise. Symbol Model Code P6V - (F)RS(G) - - CCG - - J Swash plate type variable piston pump P**V Series 2 Pump mounting Omitted : flange mounting F : foot bracket 3 Rotation (viewed from shaft end) R : right rotation(clockwise) L : left rotation(counterclockwise) 4 Displacement S : one side of center 5 Porting(drain port to JIS tapered th fd) Omitted : SE O-ring seal G : SE 4 bolt flange 6 Design no. 7 Controls C CM CG CV 2P EP *C : pressure compensator (.5 ~ 2 MPa) : pressure compensator (.5 ~.5 MPa) : remote pressure compensator : load sensing control : self pressurized, 2press./2flow control : proportional valve press. compensator : Maximum displacement adjustment (CC,CMC,CCG,CVC) 8 Control valve design no.

7 Model Code (F) - P7V(3)(F)R(62) - (2)(C) - EDQS - - J Fluid Omitted : mineral oil F : water glycol 2 P**V Series P2V,P3V,P4V,P7V,PV,P3V 3 Double pump code Omitted (P4V,P7V,PV,P3V) Consult TOKIMEC regarding displacements, models of SQP, SQP2, SQP3 4 Pump mounting Omitted : no foot bracket F : foot bracket 5 Rotation (viewed from shaft end) R : right rotation(clockwise) L : left rotation(counter-clockwise) 6 Maximum displacement limitation Input max. displacement to be limited. (example: input 62 in case of 62cm 3 /rev maximum displacement limitation for P7V) 7 Integrated vane pump displacement code See specifications 8 Vane pump delivery port position (input only if 3 is shown under 3 ) Viewed from cover side with control valve up B C D : bottom : left : up : right : single pump : integrated fixed vane pump (P4V,P7V,PV,P3V) : fixed vane pump SQP Series w/thru shaft (P7V,PV)* : fixed vane pump SQP2 Series w/thru shaft (P7V,PV,P3V)* : fixed vane pump SQP3 Series w/thru shaft (PV,P3V)* : P6V variable piston pump w/thru shaft 9 Pump design no. Controls C CM CG CV CVF CGVF 2P EP MCU MC2 MC2U MC3 *C EDQS : press.compensator (P2V,P3V,P4V,P7V,PV,P3V) : press.compensator (P2V,P3V,P4V,P7V,PV,P3V) : remote press. compensator (P2V,P3V,P4V,P7V,PV,P3V) : load sensing (P2V,P3V) : load sensing (P4V,P7V,PV,P3V) : load sensing w/remote press. compensator (P4V,P7V,PV,P3V) : self pressurized, 2press./2flow (P3V,P4V) : proportional valve press. compensator (P2V,P3V,P4V,P7V,PV,P3V) : multi-stage press. compensator [press. unload] (P2V,P3V,P4V,P7V,PV,P3V) : multi-stage press.compensator [2pressures] (P2V,P3V,P4V,P7V,PV,P3V) : multi-stage press. compensator [2press. unload] (P2V,P3V,P4V,P7V,PV,P3V) : multi-stage press. compensator [3pressures] (P2V,P3V,P4V,P7V,PV,P3V) : Maximum displacement adjustment (CC,CMC,CCG,CVC,MCUC, MC2C,MC2UC,MC3C) : elec.direct control [flow] (P4V,P7V,PV,P3V) : elec.direct control [flow,pressure] EDS (P4V,P7V,PV) Control valve design no. Specifications Model Max. Displ. cm 3 /rev Max. MPa Max. Speed min - Min. Speed min - Weight kg P6V 6 5 P2V 2 23 P3V 3 23 P4V P7V 7 63 PV 9 P3V 3 2 Weights are for pumps with pressure compensator. Consult TOKIMEC for specifications of pumps using water glycol fluids. Integrated vane pump specifications 7 Displ. Symbol Displacement cm 3 /rev Max. Working Press. MPa 6

8 8 8 Controls Pump Control Method Type Code Compensator C CM Characteristics Curve Setting Press. Remarks When delivery pressure approaches the compensator setting, pump delivery is automatically reduced to the minimum flow necessary to maintain the pressure. Setting pressure may be adjusted manually. Symbol Dual pressure, dual flow self-pressured control 2P x Dual pressure compensation control enables automatic switching from low pressure-high flow to high pressure-low flow modes. Remote pressure compensator CG Setting pressure of pressure compensator control can be set from a separate location with a remote control valve. Remote Max. Proportional pressure compensator EP Variable proportional setting of pressure with the integrated electro-proportional control valve. Max. Load sensing control CVF (CV) utomatically controls pump flow to maintain a fixed differential pressure across flow control valve downstream of the pump. Energy saving.provides min. flow and pressure to drive the load (actuator). Figure at right is of CVF control. Remote load sensing control w/pressure comensator CGVF Pump delivery automatically controlled with load sensing control during flow control. Pump control automatically switches as pump delivery pressure approaches pressure compensator setting(cutoff pressure).

9 Controls Pump Control Method Characteristics Curve Type Code Remarks Symbol MCU Solenoid ON Selection of control of unload and pressure compensator setting pressure with solenoid valve integrated on pump. P B T a 9 MC2 Solenoid OFF Solenoid ON Two compensator setting switching with solenoid valve integrated on pump. b P B T Multi-stage pressure compensator control MC2U Solenoid a ON Solenoid b ON Unload and two pressure settings of compensator with solenoid valve integrated on pump. b P B T a B MC3 Solenoid OFF Solenoid a ON Solenoid b ON 3-pressure compensator settings switched by solenoid valve integrated on pump. a P T b Electrical direct control EDQS Position sensor mounted on pump detects swash plate angle provides linear control of delivery flow in response to flow control signal. EDS In flow control mode, pump delivery is controlled by flow control signal. When pump delivery pressure approaches pressuring setting signal, mode automatically switches to pressure control.

10 Pump Control Method Characteristics Curve Type Code Remarks Symbol Maximum displacement adjustment function *C **C Maximum displacement adjustment with adjustment screw on pump. control characteristics dependent on ** section control method. Displacement adjuster symbol Max Displacement djuster Characteristics Displacement djuster length (mm) Displacement djuster length (mm) Displacement cm 3 6 / rev cm 3 8 / rev cm 3 / rev djuster length (mm) P6V Series P2V Series P3V Series Displacement cm 3 / rev cm 3 / rev 2 cm 3 / rev Limit 5 4 djuster length (mm) Displacement djuster length (mm) Displacement Limit djuster length (mm) P4V Series P7V Series PV Series cm 3 / rev Displacement Limit djuster length (mm) 24 Nut Volume adjuster P6V Series P2V ~ P3V Series P3V Series Nut Volume adjuster

11 Characteristics Curves (at 2 mm 2 /s),efficiency,delivery,input power (8 min - ) P6V Eff. % Del. flow L / min 2 Vol. eff. Overall eff. 8 Del. flow Full flow shaft input Cutoff input pwr Del. pressure MPa 2 Shaft input power kw, noise characteristics(m from pump rear) P6V Noise level db() Del. pressure MPa 8 min - 5 min - at full flow at cutoff P2V Eff. % Del. flow L / min 2 Vol. eff Del. flow 3 Full flow shaft input Overall eff. 5 kw 5 Cutoff input pwr Del. pressure MPa Shaft input power P2V Noise level db() Del. pressure MPa 8 min - at full flow 5 min - at cutoff P3V Eff. 8 Vol. eff. Overall eff. 3 P3V 7 % 6 2 Shaft input power Noise level db() 6 Del. flow 6 L / min 4 2 Del. flow Full flow shaft input Cutoff input pwr Del. pressure MPa kw Del. pressure MPa 8 min - 5 min - at full flow at cutoff

12 2 Characteristics Curves (at 2 mm 2 /s),efficiency,delivery,input power (8 min - ) P4V Eff. % Del. Flow L / min Vol. Eff. Del. Flow Full Flow Shaft Input Del. Overall Eff. Cutoff Input Pwr MPa Shaft Input Power kw, noise characteristics(m from pump rear) P4V Noise Level db() Del. MPa 8 min - at full flow 5 min - at cutoff P7V Vol. Eff. P7V 7 Eff. % Del. Flow L / min 8 4 Overall Eff. Del. Flow Full flow shaft input Cutoff Input Pwr Del. MPa 5 4 Shaft Input Power 3 kw 2 Noise Level db() Del. MPa 8 min - at full flow 5 min - at cutoff PV Vol. Eff. PV 8 Eff. 8 Overall Eff. % 6 2 Del. Flow 8 Shaft Input Power Noise Level db() 7 Del. Flow 5 L / min 5 Full flow shaft input Cutoff Input Pwr Del. MPa kw Del. MPa 8 min - at full flow 5 min - at cutoff

13 Characteristics Curves (at 2 mm 2 /s),efficiency,delivery,input power (8 min - ) P3V Eff. % Del. Flow L / min5 Vol. Eff. Del. Flow Full Flow Shaft Input Overall Eff. Cutoff Input Pwr Shaft Input Power kw, noise characteristics(m from pump rear) P3V Noise Level db() Del. MPa 8 min - at full flow 5 min - at cutoff 3 Del. MPa, drain characteristics (at 8 min -,2 mm 2 /s) T FULL FLOW T CUTOFF (C: Compensetor) 4 P 3 V 8 P 3 V 7 P V P V 3 6 Del. Drain L / min 2 P7 V P4 V P3 V P2 V Del. Drain L / min P7 V P4 V P3 V P2 V 2 P 6V P 6V Del. MPa Del. MPa

14 4 Dimensions P6V FLNGE MOUNT adj.screw, 24 hex.hole (C.CM.CC.CMC) Drain port Rc3/ Parallel Key Remote control or load sensing port Rc/4 ( CG,CCG,CV,CVC) Max. 3 Fill port(with plug) L.H. rotation Max. displ. adj.screw, 7hex.hole R.H. rotation Max (w/ Max. displ. adj. function) R.H. rot.-del. Port R.H. rotation:suction Port L.H. rot.-suction Port L.H. rotation:del. Port -/6-2UN -/6-2UN (SE O-ring seal) (SE O-ring seal) FOOT MOUNT ø PORTING G R.H. rotation:suction Port L.H. rotation:del. Port ø9 R.H. rot.-del. Port L.H. rot.-suction Port ø M 7deep ø ø2.5 spotface,.5deep P2V / P3V Drain port Rc/2 Fill port(with plug) Parallel key Max (with Max.displ.adj.function) Max. displ. adj.screw hex.hole Max R R.H. rotation: Suction Port ø32, opposite side is del.port ø32. L.H. rotation: Del. Port ø32, opposite side is suction port ø M 2deep

15 Max. 289 (with Max.displ.adj.function) Fill port (with plug) 3. 8 parallel key R Dimensions P4V Drain port Rc3/ Max. displ. adj.screw, 5hex.hole Max M 23deep R.H. rotation: Suction Port ø32, opposite side is del.port ø32. L.H. rotation: Del. Port ø32, opposite side is suction port ø P7V Drain port Rc3/4 Fill port (with plug) parallel key Max 33 (with Max.displ.adj.function) Max. displ. adj.screw, 5hex.hole Max R R.H. rotation: Suction Port ø38, opposite side is del.port ø3. L.H. rotation: Del. Port ø3, opposite side is suction port ø M2 23deep P7V3 NOTE: The dimention same as P7V(except as were noted) M2 23deep 4-3/8-6UNC 9.deep R.H. rotation:suction port ø5.8, L.H. rotation:suction port is opposite side. The dimention of del. port same as P7V Del. port of Vane pump ø9. (port direction-4 orientations possible)

16 6 Dimensions PV Fill port(with plug) Drain port Rc3/4 Parallel key NOTE:Right rotation model shown. For left rotation,control valve shall move to symmetrical position from center line. Max. displ. adj.screw, 5hex.hole Max R M2 23deep R.H. rotation: Suction port ø63.5, del.port is opposite side ø38. L.H. rotation: Del.port ø38,suction port is opposite side ø63.5. PV3 NOTE:The dimentions same as PV. (except as were noted) 4-3/8-6UNC 9.deep 22.2 Del. port of Vane pump ø9. (port direction-4 orientations possible) 6. 5 P3V 2. 2 Fill port(with plug) Drain port Rc3/4 -.7 parallel key 22 Max. 39 (with Max.displ.adj.function) NOTE:Right rotation model shown. For left rotation,control valve shall move to symmetrical position from center line. Max. displ. adj.screw, 5hex.hole Max R M2 23deep R.H. rotation: Suction port ø63.5, del.port is opposite side ø38. L.H. rotation: Del.port ø38,suction port is opposite side ø

17 Dimensions P3V3 Note : Dimensions same as P3V except as were noted /8-6 UNC, depth Vane pump del. port, dia. 9. (port direction - 4 orientations possible) Notes on Operation See piston pump Notes on Operation (page 4, 5) Piping Flanges and Couplings Flanges and couplings must be ordered separately. See table below for required parts. Integrated vane pump delivery port flange Flange includes O-rings, mounting bolts, spring washers 使用上の注意事項 Piping Flanges (conforming to SE J58c standard flanges) P7V3 Pump Model P6V P2V,P3V P4V P7V PV(3) P3V(3) Diameter Rc3/4 Diameter Rc3/4 Rc-/4 Threaded Flange Model FL-6-6P--J-S4-M FL--P--J-S4-M Diameter 2 32 Rc-/2 FL-2-2P--J-S4-M 4 Del. Rc-/2 FL-2-2P--J-S4-M 4 Suction Rc2 FL-6-6P--J-S4-M 5 Rc2-/2 Threaded Flange Model FL-6-6P--J-S4-J FL-2-2P--J-S4-M Welded Diameter Flange Model 2 FL-6-6W--J Welded Flange Model FL-6-6W--J-M FL--W--J-M FL-2-2W--J-M FL-2-2W--J-M FL-6-6W--J-M 65 FL-2-2W--J-M Pipe Couplings (SE O-ring seal couplings) Pump Model P6V Suction, delivery port couplings Pump side thread size Piping side thread size Rc3/8 Rc/2 -/6-2UN Rc3/4 Rc Part no. VP365 VP36873 VP387 VP394

18 8 Construction P6V Item Name Part No. Standard Qty 3 O-ring S568-96(NBR,Hs9) 7 O-ring S568-96(NBR,Hs9) 2 9 Shaft seal V Gasket V O-ring 867 JIS B 24 -P8 Seal kit P/N : V2268 Rotating group kit 8 P/N : V Pump compensator C,CM CG,CV 9 w/max. displacement adjustment function Item Name Part No. Standard Qty 4 O-ring 7957 S568-5(NBR,Hs7) 9 O-ring 799 S568-(NBR,Hs9) 3 5 Backup ring O-ring 7927 S568-2(NBR,Hs7)

19 Construction P2V,P3V,P4V,P7V P2V/P3V P4V 9 Item Name Part No. Standard Qty 5 Shaft seal V O-ring S568-96(NBR,Hs9) 6 Gasket O-ring S568-27(NBR,Hs9) 2 39 O-ring 799 S568-(NBR,Hs9) 2 4 O-ring 7989 S568-8(NBR,Hs9) Item Name Part No. Standard Qty 4 O-ring S568-38(NBR,Hs7) 5 Shaft seal V O-ring S568-96(NBR,Hs9) 9 O-ring S568-92(NBR,Hs9) 6 Gasket O-ring 7947 S568-4(NBR,Hs7) 2 39 O-ring 799 S568-(NBR,Hs9) 2 4 O-ring 7989 S568-8(NBR,Hs9) DUMMY Rotating Group Kits Model P2V P3V P4V P7V Kit P/N R rotation No.7 w/wafer plate L rotation No.7 w/wafer plate P7V Item Name Part No. Standard Qty 4 O-ring S568-23(NBR,Hs9) 5 Shaft seal O-ring S568-96(NBR,Hs9) 9 O-ring S568-92(NBR,Hs9) 6 Gasket V O-ring S568-49(NBR,Hs7) 2 39 O-ring 799 S568-(NBR,Hs9) 2 4 O-ring 7989 S568-8(NBR,Hs9)

20 2 Construction PV,P3V PV Item Name Part No. Standard Qty 4 O-ring S (NBR,Hs7) 5 Shaft seal O-ring S568-92(NBR,Hs9) O-ring S568-92(NBR,Hs9) 8 Gasket O-ring S568-24(NBR,Hs9) 2 35 O-ring 7999 S568-9(NBR,Hs9) 38 O-ring 7999 S568-9(NBR,Hs9) 4 O-ring 799 S568-(NBR,Hs9) 2 43 O-ring 7989 S568-8(NBR,Hs9) Rotating Group Kits Model PV P3V Kit P/N R rotation No.9 w/wafer plate L rotation No.9 w/wafer plate P3V Item Name Part No. Standard Qty 4 O-ring S (NBR,Hs7) 5 Shaft seal O-ring S568-92(NBR,Hs9) O-ring S568-92(NBR,Hs9) 8 Gasket O-ring S (NBR,Hs9) 2 35 O-ring 7999 S568-9(NBR,Hs9) 38 O-ring 7999 S568-9(NBR,Hs9) 4 O-ring 799 S568-(NBR,Hs9) 2 43 O-ring 7989 S568-8(NBR,Hs9)

21 Low Noise, High Variable Displacement Piston Pump PH Series 2 Symbol Model Code PH - MS (*) (F) YR CH - (D) - - (S38) PH Series variable displacement piston pump PH8,PH,PH3,PH7 2 Port specifications M: standard 3,4 Code for double pump S: single pump *Contact TOKIMEC for double pump configurations 5 Pump mounting Omitted: flange mounting F: foot bracket 6 Shaft end configuration Y: long shaft w/se square key 7 Rotation (viewed from shaft end) R: right rotation (clockwise) L: left rotation (counter-clockwise) 8 Pump design no. 9 Pump control CH : pressure compensator CGH : remote pressure compensator CVH : load sensing TL : torque limiter (low) TH : torque limiter (high) EDHS : electric direct control (flow,pressure) Max. displacement adjuster Omitted : none D : w/ adjuster Control valve design no. 2 Suffix S38 : for TL/TH models Omitted : other Specifications Working Max. Min. Weight Model Max. Displ. Speed Speed kg cm 3 /rev MPa min - min - PH8 8 5 Rated 28 PH 7 Intermit. 3 PH Rated 2 95 PH7 7 Intermit Intermittent pressure means pressure less than % of duty cycle (max. 6 seconds). Contact Tokimec for applications which exceed rated working pressure. Rated pressure of electric direct control EDHS is 2 MPa. This pressure is controlled by relief valve setting. Weight is for CH type (pressure compensator). Contact TOKIMEC when using water gylcol

22 22 Controls (PH Series) Pump Control Method Type Code compensator C H Characteristics Curve Remarks Symbol When pump delivery pressure rises to the setting pressure, pump flow is automatically reduced to the minimum flow needed to maintain the pressure. can be set with manual adjustment. Setting press. Remote pressure compensator Load sensing C GH CV H Remote control Setting press. Remote control Setting press. CGH setting of compensator control can be set with a remote control valve. compensator type relief valve. setting can be adjusted manually. Pump delivery automatically controlled to maintain constant differential pressure across flow control valve located downstream of pump. Energy-saving type pump control which supplies minimum flow and pressure necessary to drive load(actuator). compensator safety relief valve integrated. Setting pressure can be manually set. Remote pressure compensator control possible with externally installed remote control valve. Torque limiter (low torque/ high torque) Electric direct control TL / TH EDH S Remote control Setting press. Pump delivery automatically controlled to match load capacity of the electric motor. Flow setting can be manually adjusted. compensator safety relief valve integrated. Setting pressure can be manually set. Remote pressure compensator control possible with externally installed remote control valve. In flow control mode, pump delivery is controlled by flow control signal and as pump delivery pressure approaches the pressure setting signal, mode automatically switches to pressure control. Special controller ED-PQ necessary. compensator safety relief valve integrated. Setting pressure can be manually set. Maximum displacement adjustment function D Maximum displacement adjustment with adjustment screw on pump. Displacement adjuster symbol

23 Controls PH Series cm 3 / rev 2 Displacement djust. limit Max displacement adjuster characteristices cm 3 / rev 3 25 Displacement 2 djust. limit cm 3 / rev djuster length L (mm) djuster length L (mm) djuster length L (mm) Displacement djust. limit 23 PH8 SERIES PH SERIES PH3 SERIES djust. limit 2 22 L Nut Volume adjuster PH7 SERIES

24 24 Characteristics Curve (at 2 mm 2 /s),efficiency, delivery, input power (8min-) PH8 Vol.eff. 8 % L / min 4 Eff. Eff. Del. flow Eff. Del. flow PH PH3 % L / min 5 % Full flow shaft input Cutoff input pwr Del. pressure Vol.eff Full flow shaft input Cutoff input pwr Overall eff. Del. flow MPa Overall eff. Del. flow Del. pressure MPa Vol.eff. Overall eff Shaft input power kw 2 Shaft input power kw, noise characteristics ( m from pump rear) PH8 Noise Level db() PH Noise Level db() PH Del. pressure MPa 8 min - at full flow 5 min - at cutoff Del. MPa 8 min - 5 min - at full flow at cutoff Del. Flow L / min Full flow shaft input Del. flow 5 kw 5 Noise Level db() Cutoff input pwr Del. MPa Del. MPa 8 min - at full flow 5 min - at cutoff

25 Characteristics Curve (at 2mm 2 /s) PH7 Vol.eff. Eff. % 8 Overall eff Del. flow 5 PH7 Noise Level db() Del. flow L / min 5 Full flow shaft input Cutoff input pwr Del. pressure MPa 5 Shaft input power kw Del. MPa 8 min - at full flow 5 min - at cutoff, drain flow characteristics (8 min -, 2mm 2 /s) T FULL FLOW T CUTOFF (CH: compensator) 6 PH7 PH3 PH7 PH PH 8 7 PH Del.drain L / min 3 PH8 Del.drain L / min PH Del. pressure MPa Del. pressure MPa

26 . 26 Dimensions PH8 NOTE: Right rotation model shown.for left rotation, control valve shall move to symmetrical position from center line. adjustment Drain port 2-8 Max.55 5 Hex.hole (with two plugs) G3/4 (JIS O-ring seal) Del.port ø M2 23deep Fill port contact TOKIMEC if used as drain port Max.disp.adj.screw 6 - Hex.hole place equally spaced ø Suction port ø5 FOOT MOUNT SHFT END Max (w/ Max.disp.adj. function) 4 - M2 23deep Square key Square key ø22 ø4 Spotface 8 SHFT END X SHFT END Y PH 2 34 FOOT MOUNT NOTE: Right rotation model shown.for left rotation, control valve shall move to symmetrical position from center line. Press.adj.screw 2-8 Max.55 5 Hex.hole place equally spaced ø Drain port (with two plugs) G3/4 (JIS O-ring seal) SHFT END Del.port ø Max (w/ Max.disp.adj. function) M2 23deep Fill port contact TOKIMEC if used as drain port 89 Max.disp.adj.screw 6 -Hex.hole Suction port ø M2 23deep 28 Square key ø ø4 Spotface

27 Dimensions PH3 PH7 NOTE: Right rotation model shown.for left rotation, control valve shall move to symmetrical position from center line Max.55 Press.adj.screw 3-Drain port 5 Hex.hole (with two plugs) G3/4 (JIS O-ring seal) 2 Del.port ø M2 23deep Fill port contact TOKIMEC if used as drain port Max.disp.adj.screw 6 -Hex.hole place equally spaced ø Suction port ø M2 23deep FOOT MOUNT 28 3 SHFT END Max. 423 (w/ Max.disp.adj. function) Square key Square key ø22 ø4 Spotface 3 8 SHFT END X SHFT END Y Notes on Operation See piston pump Notes on Operation (page 4, 5)

28 28 Construction PUMP Cross section Z-Z Z Z PH8 Item Name Part No. Standard Qty 5 Shaft seal V O-ring 8529 JIS B 24 B-G8 23 O-ring S568-94(NBR,Hs9) 33 Backup ring 822 JIS B 247 T2-P2 34 O-ring 829 JIS B 24 B-P2 35 O-ring S568-92(NBR,Hs9) 37 Gasket O-ring 7949 S568-4(NBR,Hs9) 52 O-ring 8229 JIS B 24 B-P O-ring S568-92(NBR,Hs9) 4 PH Item Name Parts No. Standard Qty 5 Shaft seal O-ring 8539 JIS B 24 B-G85 23 O-ring S568-94(NBR,Hs9) 33 Backup ring 822 JIS B 247 T2-P2 34 O-ring 829 JIS B 24 B-P2 35 O-ring S568-92(NBR,Hs9) 37 Gasket O-ring S568-43(NBR,Hs9) 52 O-ring 8229 JIS B 24 B-P O-ring S568-92(NBR,Hs9) 4 PH3/PH7 Item Name Parts No. Standard Qty 5 Shaft seal O-ring 8549 JIS B 24 B-G9 23 O-ring S568-94(NBR,Hs9) 33 Backup ring 822 JIS B 247 T2-P2 34 O-ring 829 JIS B 24 B-P2 35 O-ring S568-92(NBR,Hs9) 37 Gasket O-ring S568-45(NBR,Hs9) 52 O-ring 8229 JIS B 24 B-P O-ring S568-92(NBR,Hs9) 4 Rotating Group Kit Model PH8 PH PH3 PH7 Rotating group kit ( marked parts) Right hand rotating group kit(, marked parts) Left hand rotating group kit(, marked parts) Seal kit for pump (not including control valves) Model PH8 PH PH3/PH7 Seal kit part no

29 Construction Compensator (CH: pressure compensator) Item Name Parts No. Standard Qty 3 O ring S568-92(NBR,Hs9) 8 O ring 7929 S568-2(NBR,Hs9) 2 O ring 799 S568-(NBR,Hs9) 3