Axial Piston Variable Pump (A)A10VSO Series 31 - Airline Hyd
Axial piston variable pump (A)A10VSO Series 31 RE-A 92711 Edition: 04.2017 Americas Replaces: 04.2012 All-purpose medium pressure pump Sizes 18 to 140 Nominal pressure 4100 psi (280 bar) Maximum pressure 5100 psi (350 bar) Open circuit Features Contents Variable pump with axial piston rotary group in swash- Type code 2 Hydraulic fluids 4 Working pressure range 6 Technical data, standard unit 7 Technical data, high-speed version 8 plate design for hydrostatic drives in open circuit. The flow is proportional to the drive speed and displacement. The flow can be infinitely varied by adjusting the swashplate angle. Technical data, HF hydraulic fluids, maximum rotational 2 drain ports speed Excellent suction performance DG – Two-point control, direct operated 12 Low noise level DR – Pressure controller 13 Long service life DRG – Pressure controller, remote controlled 14 Favorable power/weight ratio DFR/DFR1 – Pressure flow controller 15 Versatile controller range DFLR – Pressure, flow and power control 17 Short control time ED – Electrohydraulic pressure control 18 The through drive is suitable for adding gear pumps and ER – Electrohydraulic pressure control 19 axial piston pumps up to the same size, i.e., 100% Dimensions, size 18 to 140 20 through drive. Dimensions, through drive 38 Overview of mounting options 42 Combination pumps (A)A10VSO (A)A10VSO 43 Connector for solenoids 44 Installation instructions 45 Project planning notes 48 Safety instructions 48 Suitable for operation with mineral oil and HF hydraulic fluids 9 RE-A 92711/04.2017, Bosch Rexroth AG
A10VSO Series 31 Axial piston variable pump Type code 2 Type code 01 02 03 A10VS O 04 05 06 / 07 08 31 – Version 01 09 10 11 12 13 V 18 28 Standard version (without code) 45 71 88 100 140 HFA, HFB, HFC hydraulic fluid (except for Skydrol) E High-speed version (external dimensions are not affected by this option). – – – H Swashplate design, variable, nominal pressure 4100 psi (280 bar), maximum pressure – – – – – – A10VS 5100 psi (350 bar) – AA10VS Axial piston unit 02 Operating mode 03 O Pump, open circuit Size (NG) 04 18 28 45 71 88 Two-point control, direct operated DG Pressure controller DR X-T open DFR X-T plugged with flushing function DFR1 DRSC Geometric displacement, (see table of values on pages 6 and 7) 100 140 Control device 05 with flow controller with pressure cut-off hydraulic hydraulic X-T plugged without flushing function hydraulic remote controlled DRG electrical negative control U 12 V ED71 U 24 V ED72 electrical positive control U 12 V ER71 U 24 V Pressure,flow and power controller ER72 – DFLR Series 06 31 Series 3, index 1 Direction of rotation 07 Viewed on drive shaft clockwise R counter-clockwise L Sealing material 08 FKM (fluoroelastomer) V NBR (nitrile rubber) only if using HFA, HFB and HFC hydraulic fluids (position 01; order code “E”) P Drive shaft 09 Splined shaft ANSI B92.1a standard shaft similar to shaft “S” however for higher input torque reduced diameter, not for through drive – – Parallel keyed shaft ISO 3019-1 permissible through-drive torque (see page 10) Mounting flange 10 18 ISO 3019-1 28 45 – – R – – – U K 71 88 S 100 140 2-hole C 4-hole – – – – – – D – – 62 – – – – – 92 Working port 11 SAE flange port UNC fastening thread Bosch Rexroth AG, RE-A 92711/04.2017 at side, opposite
Axial piston variable pump A10VSO Series 31 3 Type code 01 02 03 A10VS O 04 05 06 / 31 07 08 – 09 10 11 12 13 V Through drive (for mounting options, see page 42) 12 Flange ISO 3019-1 Hub for splined shaft1) Diameter Diameter 18 28 45 71 88 100 140 N00 K01 11T 16/32DP K52 13T 16/32DP – K68 15T 16/32DP – – K04 1 1/4 in 14T 12/24DP – – – K07 1 1/2 in 17T 12/24DP – – – – – K24 1 3/4 in 13T 8/16DP – – – – – – K17 Without connector (without solenoid, with hydraulic control only, without code) HIRSCHMANN connector – without suppressor diode without through drive 82-2 (A) 5/8 in 3/4 in 101-2 (B) 7/8 in 1 in 127-2 (C) 152-4 (D) 9T 16/32DP Connectors for solenoids 2) 13 Available On request H – Not available Notice Note the project planning notes on page 48. In addition to the type code, please specify the relevant technical data when placing your order. 1) 2) Hub for splined shaft according to ANSI B92.1a Connectors for other electric components can deviate. RE-A 92711/04.2017, Bosch Rexroth AG
4 A10VSO Series 31 Axial piston variable pump Hydraulic fluids Hydraulic fluids The (A)A10VSO variable pump is designed for operation Notes on selection of hydraulic fluid with HLP mineral oil according to DIN 51524-2. The hydraulic fluid should be selected so that the operating Application instructions and requirements for hydraulic viscosity in the operating temperature range is within the fluids should be taken from the following data sheets optimum range (νopt see selection diagram). before the start project planning: Notice 90220: Hydraulic fluids based on mineral oils and The axial piston unit is suitable for operation with water- related hydrocarbons containing HF hydraulic fluid. See version “E” 90221: Environmentally acceptable hydraulic fluids 90222: Fire-resistant, water-free hydraulic fluids (HFDR/HFDU) (for permissible technical data, see data sheet 90225) 90223: Fire-resistant, water-containing hydraulic fluids (HFAE, HFAS, HFB, HFC) for version “E” see also data sheet 90225. 90225: Restricted technical data only for operation with fire-resistant, water-free and water-containing hydraulic fluids (HFDR, HFDU, HFA, HFB, HFC)- technical data Viscosity and temperature of hydraulic fluids Cold start Viscosity Shaft seal Temperature3) Comment νmax 7400 SUS (1600 mm²/s) NBR2) θSt 40 F ( 40 C) FKM θSt -13 F (-25 C) t 3 min, without load (p 725 psi (50 bar)), n 1000 min-1 Permissible temperature difference between axial piston unit and hydraulic fluid in the system maximum 45 F (25 K) Warm-up phase ν 7400 to 1850 SUS (1600 to 400 mm²/s) Continuous operation ν 1850 to 60 SUS (400 to 10 mm²/s)1) t 15 min, p 0.7 pnom and n 0.5 nnom NBR2) θ 185 F ( 85 C) FKM θ 230 F ( 110 C) measured at port L, L1 Range of optimum operating viscosity and efficiency νopt 170 to 74 SUS (36 to 16 mm²/s) Short-term operation νmin 60 to 50 SUS (10 to 7 mm²/s) NBR2) θ 185 F ( 85 C) FKM θ 230 F ( 110 C) t 3 min, p 0.3 pnom , measured at port L, L1 Selection diagram 7400 4600 3000 2000 200 1000 100 500 60 300 40 36 200 170 20 16 100 74 10 60 Continuous operation νopt Minimum permissible viscosity for short-term operation Minimum permissible viscosity for cold start 7 50 -40 -40 0 10 VG 68 VG 46 VG 32 VG 2 2 [SUS] 1600 1000 600 400 VG [mm2/s] Viscosity v Maximum permissible viscosity for cold start Warm-up phase -25 -13 Corresponds e.g. for VG 46 to a temperature range of 39.2 F ( 4 C) to 185 F ( 85 C) (see selection diagram) 2) Version EA10VSO.-P (if operating with HFA, HFB and HFC hydraulic fluids Bosch Rexroth AG, RE-A 92711/04.2017 1) -10 14 0 10 32 50 30 86 50 122 70 158 Temperature θ [ C] 3) 90 194 115 [ C] 240 [ F] If the temperature at extreme operating parameters cannot be adhered to, please contact us.
Axial piston variable pump A10VSO Series 31 5 Hydraulic fluids Filtration of the hydraulic fluid Finer filtration improves the cleanliness level of the hydraulic fluid, which increases the service life of the axial piston unit. A cleanliness level of at least 20/18/15 is to be maintained according to ISO 4406. At very high hydraulic fluid temperatures (maximum 230 F (110 C), measured at port L, L1), at least a cleanliness level of 19/17/14 according to ISO 4406 is necessary. Please contact us if the above classes cannot be observed. RE-A 92711/04.2017, Bosch Rexroth AG
6 A10VSO Series 31 Axial piston variable pump Working pressure range Working pressure range Pressure at working port B Definition Nominal pressure pnom 4100 psi (280 bar) The nominal pressure corresponds to the maximum design pressure. Maximum pressure pmax 5100 psi (350 bar) The maximum pressure corresponds to the maximum working pressure within the single operating period. The sum of the single operating periods must not exceed the total operating period. Single operating period 2 ms Total operating period 300 h Minimum pressure pB (high-pressure side) abs Rate of pressure change RA max 145 psi (10 bar)1) Minimum pressure on the high-pressure side (B) which is required in order to prevent damage to the axial piston unit. 232060 psi/s (16000 bar/s) Maximum permissible speed of pressure build-up and reduction during a pressure change across the entire pressure range. 12 psi (0.8 bar) absolute Minimum pressure at suction port S (inlet) that is required in order to avoid damage to the axial piston unit. The minimum pressure depends on the rotational speed and displacement of the axial piston unit. 145 psi (10 bar) absolute For higher inlet pressure, please consult us 30 psi (2 bar) absolute1) Maximum 7.5 psi (0.5 bar) higher than inlet pressure at port S, but not higher than pL max. A case drain line to the reservoir is required. Pressure at suction port S (inlet) Minimum pressure pS min Standard Maximum pressure pS max Leakage pressure at port L, L1 Maximum pressure pL max Rate of pressure change RA max Notice Working pressure range valid when using hydraulic fluids pnom based on mineral oils. Please contact us for values for Pressure p t other hydraulic fluids. Minimum permissible inlet pressure at suction port S with p speed increase In order to avoid damage to the pump (cavitation), a minimum inlet pressure must be guaranteed at suction port S. The minimum inlet pressure level depends on the rotational Time t speed and the displacement of the variable pump. Pressure definition Minimum pressure (high-pressure side) Time t Total operating period t1 t2 . tn 17 (1.2) 15 (1.0) 1.0 13 (0.9) 0.9 0.7 0.8 Other values on request Bosch Rexroth AG, RE-A 92711/04.2017 12 (0.8) 1.0 Displacement Vg/ Vg max During continuous operation in overspeed over nnom, a reduction in operational service life is to be expected due to cavitation erosion. 1) 0.9 abs 20 (1.4) 1.1 Inlet pressure pS Pressure p Maximum pressure pmax Nominal pressure pnom Standard version 24 (1.6) tn High speed version t2 Rotational speed n/nnom Single operating periodt1 [psi (bar)] 1.2
Axial piston variable pump A10VSO Series 31 7 Technical data, standard unit Technical data, standard unit Size NG Displacement, geometric, per revolution Vg max 18 28 45 71 88 100 140 in 1.10 1.71 2.75 4.33 5.37 6.10 8.54 (cm3) (18) (28) (45) (71) (88) (100) (140) 3300 3000 2600 2200 2100 2000 1800 3 Rotational speed maximum1) at Vg max nnom rpm at Vg Vg max2) nmax perm rpm 3900 3600 3100 2600 2500 2400 2100 Flow at nnom and Vg max qv max gpm 15.6 22 30.9 41.2 48.9 52.8 67 (l/min) (59) (84) (117) (156) (185) (200) (252) at nE 1800 rpm qvE max gpm 8.5 13.3 21.4 33.8 41.8 47.6 67 (l/min) (32) (50) (81) (128) (158) (180) (252) HP 38 52 74 98 115 125 156 (kW) (28) (39) (55) (73) (86) (93) (118) and Vg max Power at nnom, Vg max P max at Δp 4100 psi at nE 1800 rpm HP 19 31 50 79 99 111 156 (280 bar) and Vg max (kW) (15) (24) (38) (69) (74) (84) (118) Torque Δp 4100 psi (280 bar) T max lb-ft 59 92 148 233 289 328 460 (Nm) (80) (125) (200) (316) (392) (445) (623) lb-ft 22 33 53 83 103 117 164 (Nm) (30) (45) (72) (113) (140) (159) (223) at Vg max and Rotary stiffness of drive shaft PE max Δp 1450 psi (100 bar) T S c lb-ft/rad 8177 16460 27659 53019 53019 89350 124970 (Nm/rad) (11087) (22317) (37500) (71884) (71884) (121142) (169437) lb-ft/rad 10953 19442 30258 56457 56457 – – (Nm/rad) (14850) (26360) (41025) (76545) (76545) – – lb-ft/rad 5967 – – – – 67187 – R c U c (Nm/rad) (8090) – – – – (91093) – K c lb-ft/rad 9839 19316 32382 60562 60562 99794 138961 (Nm/rad) (13340) (26189) (43905) (82112) (82112) (135303) (188406) JTW lbs-ft2 0.022 0.040 0.078 0.197 0.197 0.396 (kgm2) (0.00093) (0.0017) (0.0033) (0.0083) (0.0083) (0.0167) gal 0.106 0.185 0.264 0.420 0.420 0.580 0.790 (l) (0.4) (0.7) (1.0) (1.6) (1.6) (2.2) (3.0) lbs 28 40 52 78 78 109 144 (kg) (12.9) (18) (23.5) (35.2) (35.2) (49.5) (65.4) lbs 30 43 55 84 84 122 164 (kg) (13.8) (19.3) (25.1) (38) (38) (55.4) (74.4) Moment of inertia for rotary group Case volume Weight without through drive (approx.) Weight with through drive (approx.) V m 0.574 (0.0242) Notes see page 8 1) 2) The values are applicable: ‒ At absolute pressure pabs 15 psi (1 bar) at suction port S ‒ For the optimal viscosity range of νopt 170 to 80 SUS (36 to 16 mm2/s) ‒ For hydraulic fluid based on mineral oils For a speed increase up to nmax perm, please observe the diagram on page 6. RE-A 92711/04.2017, Bosch Rexroth AG
A10VSO Series 31 Axial piston variable pump Technical data, high-speed version (external dimensions are the same as the standard version) 8 Technical data, high-speed version (external dimensions are the same as the standard version) Size NG Displacement, geometric, per revolution Vg max 45 71 100 140 8.54 in 2.75 4.33 6.10 (cm3) (45) (71) (100) (140) 3000 2550 2300 2050 3 Rotational speed maximum1) at Vg max nnom rpm at Vg Vg max2) nmax perm rpm 3300 2800 2500 2200 Flow at nnom and Vg max qv max gmp 35.7 47 60.8 75.8 (l/min) (135) (178) (230) (287) Power at nnom, Vg max and Δp P max HP 84 111 143 180 (kW) (63) (83) (107) (134) lb-ft 148 233 328 460 (Nm) (200) (316) (445) (623) and Δp 4100 psi (280 bar) Torque at Vg max and Δp 4100 psi (280 bar) Δp 1450 psi (100 bar) Rotary stiffness of drive shaft S R T max T c c lb-ft 53 83 117 164 (Nm) (72) (113) (159) (223) lb-ft/rad 27659 53019 89350 125044 (Nm/rad) (37500) (71884) (121142) (169537) lb-ft/rad 30258 56457 – – (Nm/rad) (41025) (76545) – – – – 67187 – U c lb-ft/rad (Nm/rad) – – (91093) – K c lb-ft/rad 32270 60352 99448 144680 (Nm/rad) (43905) (82112) (135303) (188406) lb-ft2 0.078 0.197 0.396 0.574 Moment of inertia for rotary group JTW (kgm ) (0.0033) (0.0083) (0.0167) (0.0242) Case volume V gal 0.264 0.420 0.580 0.790 (l) (1.0) (1.6) (2.2) (3.0) Weight without through drive (approx.) m lbs 52 78 109 144 (kg) (23.5) (35.2) (49.5) (65.4) 2) Weight with through drive (approx.) Notice Theoretical values, without efficiency and tolerances; values rounded Operation above the maximum values or below the minimum values may result in a loss of function, a reduced service life or in the destruction of the axial piston unit. Bosch Rexroth recommends checking the load by means of test or calculation / simulation and comparison with the permissible values. 1) 2) The values are applicable: ‒ At absolute pressure pabs 1 bar at suction port S ‒ For the optimal viscosity range of νopt 36 to 16 mm2/s ‒ For hydraulic fluid based on mineral oils For a speed increase up to nmax perm, please observe the diagram on page 6. Bosch Rexroth AG, RE-A 92711/04.2017 lbs 55 84 122 164 (kg) (25.1) (38) (55.4) (74.4)
Axial piston variable pump A10VSO Series 31 9 Technical data, HF hydraulic fluids, maximum rotational speed Determining the characteristics Flow qv Torque T Power P Vg n ηv [gpm (l/min)] 231 (1000) Vg Δp [lb-ft (Nm)] 24 (20) π ηmh 2π T n 33000 (60000) qv Δp 1714 (600) ηt [HP (kW)] Key Vg Displacement per revolution [in3 (cm3)] Δp Differential pressure [psi (bar)] n Rotational speed [rpm] ηv Volumetric efficiency ηhm Hydraulic-mechanical efficiency ηt Total efficiency (ηt ηv ηhm) Technical data, HF hydraulic fluids, maximum rotational speed Hydraulic fluid1) E-version Size psi (bar) HFA at nominal pressure pN 2030 (140) at maximum pressure pmax 2350 (160) HFB at nominal pressure pN 2030 (140) at maximum pressure pmax 2350 (160) HFC at nominal pressure pN 2540 (175) at maximum pressure pmax 2900 (210) NG 18 28 45 71 88 100 140 1950 1650 1550 1500 1350 1760 1650 1600 1450 nnom rpm 2450 2250 nnom rpm 2650 2400 nnom rpm 2650 2400 2100 1760 1650 1600 1450 nnom rpm 2650 2400 2100 1760 1650 1600 1450 3300 3000 2600 2200 2100 2000 1800 2100 Technical data, HFD hydraulic fluids HFDR, HFDU polyalkylene glycol at nominal pressure pN HFDU polyol ester at nominal pressure pN 1) 4100 (280) 4100 (280) For further information on HF hydraulic fluids, please see data sheets 90223 and 90225 RE-A 92711/04.2017, Bosch Rexroth AG
A10VSO Series 31 Axial piston variable pump Technical data, HF hydraulic fluids, maximum rotational speed 10 Permissible radial and axial forces of the drive shafts Size NG Fq Maximum radial force at a/2 18 28 45 71 88 100 140 Fq max lbf (N) 79 (350) 270 (1200) 337 (1500) 427 (1900) 427 (1900) 517 (2300) 629 (2800) Fax max lbf (N) 157 (700) 225 (1000) 337 (1500) 540 (2400) 540 (2400) 899 (4000) 1079 (4800) 18 28 45 71 88 100 140 lb-ft 59 92 148 232 289 328 460 (Nm) (80) (125) (200) (316) (392) (445) (623) lb-ft 91 145 235 462 462 814 1195 (1620) a/2 a/2 a Maximum axial force Fax – Notice The values given are maximum values and do not apply to continuous operation. For drives with radial loading (pinion, V-belt drives) please contact us! Permissible input and through-drive torques Size Torque at Vg max and Δp 4100 psi (280 bar) 1) T max Maximum input torque at drive shaft 2) S R U K TE max (Nm) (124) (198) (319) (626) (626) (1104) DIA in 3/4 7/8 1 1 1/4 1 1/4 1 1/2 1 3/4 TE max lb-ft 118 184 295 475 475 – – (Nm) (160) (250) (400) (644) (644) – – DIA in 3/4 7/8 1 1 1/4 1 1/4 – – TE max lb-ft 43 – – – – 438 – – (Nm) (59) – – – – (595) DIA in 5/8 – – – – 1 1/4 – TE max lb-ft 77 107 156 319 319 553 875 (Nm) (104) (145) (212) (433) (433) (750) (1186) in 0.7500 0.8750 1.0000 1.2500 1.2500 1.5000 1.7500 (mm) (19.5) (22.225) (25.4) (31.75) (31.75) (38.1) (44.45) 80 118 235 363 363 573 934 DIA Maximum through-drive torque 1) 2) S TD max lb-ft (Nm) (108) (160) (319) (492) (492) (778) (1266) R TD max lb-ft 89 130 269 404 404 – – (Nm) (120) (176) (365) (548) (548) – – U TD max lb-ft 43 – – – – 438 – (Nm) (59) – – – – (595) – K TD max lb-ft 77 107 156 319 319 553 875 (Nm) (104) (145) (212) (433) (433) (750) (1186) Efficiency not considered For drive shafts with no radial force Bosch Rexroth AG, RE-A 92711/04.2017
Axial piston variable pump A10VSO Series 31 11 Technical data, HF hydraulic fluids, maximum rotational speed Distribution of torques T1 T2 TE 1st pump 2nd pump T3 TD Torque at 1st pump T1 Torque at 2nd pump T2 Torque at 3rd pump T3 Input torque Through-drive torque TE T1 T2 T3 TE TE max TD T2 T3 TD TD max RE-A 92711/04.2017, Bosch Rexroth AG
12 A10VSO Series 31 Axial piston variable pump DG – Two-point control, direct operated DG – Two-point control, direct operated The variable pump can be set to a minimum swivel angle by Circuit diagram connecting an external switching pressure to port X. MH1) This will supply control fluid directly to the stroking piston; X a minimum control pressure of pst 725 psi (50 bar) is required. The variable pump can only be switched between Vg max L B or Vg min. Please note that the required control pressure at port X is directly dependent on the actual working pressure pB in port B. (See control pressure characteristic curve). The maximum permissible switching pressure is 4100 psi (280 bar). Switching pressure pst in X 0 psi (0 bar) Vg max Switching pressure pst in X 725 psi (50 bar) Vg min Rec. control pressure pst [psi (bar)] Switching pressure characteristic curve 1) L1 120 100 50 0 50 100 150 200 working pressure pB [psi (bar)] Only size 140 Bosch Rexroth AG, RE-A 92711/04.2017 250 280 S
Axial piston variable pump A10VSO Series 31 13 DR – Pressure controller DR – Pressure controller The pressure controller limits the maximum pressure at the Circuit diagram, sizes 18 to 100 pump outlet within the control range of the variable pump. The variable pump only supplies as much hydraulic fluid as is required by the consumers. If the working pressure L exceeds the pressure command value at the pressure valve, B the pump will regulate to a smaller displacement to reduce the control differential. Initial position in depressurized state: Vg max. Setting range1) for infinitely variable 290 to 4100 psi (20 to 280 bar) pressure control. Standard is 4100 psi (280 bar). Characteristic curve Hysteresis/pressure rise Δp max L1 Working pressure pB [psi (bar)] 4100 (280) 290 (20) Circuit diagram, size 140 Controller data qv min Flow qV qv max Characteristic curve valid at n1 1500 rpm and θfluid 122 F (50 C). NG 18 Pressure increase Δp [psi (bar)] Hysteresis and repeatability Δp [psi (bar)] Control fluid consumption 1) S [gpm (l/min)] 28 45 71 60 60 87 115 (4) (4) (6) (8) 88 100 140 130 (9) 145 175 (10) (12) maximum 45 (3) maximum approx. 0.8 (3) In order to prevent damage to the pump and the system, the permissible setting range must not be exceeded. The range of possible settings at the valve is higher. RE-A 92711/04.2017, Bosch Rexroth AG
14 A10VSO Series 31 Axial piston variable pump DRG – Pressure controller, remote controlled DRG – Pressure controller, remote controlled For the remote controlled pressure controller, the LS pres- Circuit diagram DRG nominal size 18 to 100 sure limitation is performed using a separately arranged 1 pressure relief valve. Therefore any pressure control value under the pressure set on the pressure controller can be X regulated. Pressure controller DR see page 11. A pressure relief valve is externally piped up to port X for 2 remote control. This relief valve is not included in the scope of delivery of the DRG control. When there is differential pressure of 290 psi (20 bar) Δp 3 (standard setting), the quantity of control fluid at the port is X approx. 0.4 gpm (1.5 l/min). If a different setting L (range 145 to 320 psi (10 to 22 bar)) is required, please B state in plain text. As a separate pressure relief valve (1) we recommend: a direct operated, hydraulic or electric proportional one, suitable for the control fluid mentioned above. The max. length of piping should not exceed 6.6 ft (2 m). Basic position in depressurized state:Vg max. Setting range1) for pressure control 290 to 4100 psi (20 to 280 bar) (3). Standard is 4100 psi (280 bar). Setting range for differential pressure 145 to 320 psi (10 to 22 bar) (2). Standard is 290 psi (20 bar). L1 Unloading port X to the reservoir results in a zero stroke (standby) pressure which is approx. 15 to 30 psi 1 The separate pressure relief valve and the line are not (1 to 2 bar) higher than the defined differential pressure p, however system influences are not taken into account. Hysteresis/repeatability Working pressure pB [psi (bar)] 4100 (280) 1 X There is no valve for maximum internal pressure set- 2) ting for size 140 DRG Flow qV qv max Characteristic curve valid at n1 1500 rpm and θfluid 122 F (50 C). 2) Circuit diagram, size 140 Notice qv min 1) included in the scope of delivery. 2 Remote controlled pressure cut-off (G). 3 Pressure controller (DR) Characteristic curve DRG Stand by S In order to prevent damage to the pump and the system, the permissible setting range must not be exceeded. The range of possible settings at the valve is higher. Zero stroke pressure from pressure setting p on controller (2) Bosch Rexroth AG, RE-A 92711/04.2017 Controller data DRG NG Hysteresis and repeatability Control fluid consumption DR and DRG 18 Δp [psi (bar)] [gpm (l/min)] 28 45 71 88 100 maximum 45 (3) maximum approx. 1.2 (4.5) 140
Axial piston variable pump A10VSO Series 31 15 DFR/DFR1/DRSC – Pressure flow controller DFR/DFR1/DRSC – Pressure flow controller Circuit diagram DFR size 18 to 100 In addition to the pressure controller function (see With DFR1 plugged page 13), a variable orifice (e.g. directional valve) is used to adjust the differential pressure upstream and down- X stream of the orifice. This is used to control the pump flow. 2 The pump flow is equal to the actual hydraulic fluid quantity 1 required by the consumer. With all controller combinations, the Vg reduction has priority. 3 Basic position in depressurized state:Vg max. Setting range1) to 4100 psi (280 bar). L For pressure controller data see page 13 B Notice The DFR1 version has no unloading between X and the reservoir. Unloading the LS-pilot line must be possible in the valve system. Because of the flushing function of the flow controller in the DFR1 control valve, sufficient unloading of the X-line must also be provided. max Characteristic curve Working pressure pB [psi (bar)] Hysteresis/pressure rise Δp 4100 (280) S L1 Circuit diagram, size 140 With DFR1 plugged X 2 Stand by 1 2) qv min qv max Flow qV 3 Flow qV [l/min] qV max qV min n0 Rotational speed n Characteristic curve valid at n1 1500 rpm nmax Hysteresis / pressure increase ΔqVmax Characteristic curve at variable rotational speed B 1 The metering orifice (control block) and the line is not included in the scope of delivery. 2 Pressure and flow controller (FR). 3 Pressure controller (DR) For further information see page 16 1) and θfluid 122 F (50 C). 2) In order to prevent damage to the pump and the system, the permissible setting range must not be exceeded. The range of possible settings at the valve is higher. Zero stroke pressure from pressure setting p on controller (2) RE-A 92711/04.2017, Bosch Rexroth AG
A10VSO Series 31 Axial piston variable pump DFR/DFR1/DRSC – Pressure flow controller 16 Differential pressure p: Standard setting: 200 psi (14 bar) If another setting is required, please state in plain text. Setting range: 200 to 320 psi (14 bar to 22 bar) Relieving the load on port X to the reservoir results in a zero stroke (“standby”) pressure which lies about 15 to 30 psi (1 to 2 bar) higher than the defined differential pressure Δp, however, system influences are not taken into account. Controller data DR pressure controller data see page 13. Maximum flow deviation measured at drive speed n 1500 rpm. NG Flow deviation Δqv max [gpm (l/min)] Hysteresis and repeatability Δp [psi (bar)] Control fluid consumption Bosch Rexroth AG, RE-A 92711/04.2017 [gpm (l/min)] 18 28 45 71 88 100 140 0.20 (0.9) 0.30 (1.0) 0.50 (1.8) 0.70 (2.8) 0.90 (3.4) 1.10 (4.0) 1.60 (6.0) maximum 60 (4) maximum approx. 0.8 to 1.2 (3 to 4.5) (DFR) maximum approx. 0.8 (3) (DFR1/DRSC)
Axial piston variable pump A10VSO Series 31 17 DFLR – Pressure, flow and power control DFLR – Pressure, flow and power control Pressure controller equipped like DR, see page 13. Circuit diagram, sizes 28 to 100 Equipment of the flow controller like DFR1, see page 15 X In order to achieve a constant drive torque with varying working pressures, the swivel angle and with it the output flow from the axial piston pump is varied so that the prod- 1 uct of flow and pressure remains constant. Flow control is possible below the power control curve. Characteristic curve and torque characteristic Working pressure pB [psi (bar)] 4350 (300) 4000 (280) L B Maximum power curve 3600 (250) 2900 (200) 2200 (150) 1450 (100) 725 (50) Maximum power curve S L1 0 Circuit diagram, size 140 X qV (see table on page 16) 1 Torque T [Nm] L 0 B 100 Flow qV [%] Please contact us regarding beginning of control S L1 at 725 psi (50 bar) When ordering please state the power characteristics to be 1 The metering orifice (control block) and the line is not set at the factory in plain text, e.g. 27 HP (20 kW) at included in the scope of delivery. 1500 rpm. Controller data For technical data of pressure controller DR see page 13. For technical data of flow controller FR see page 16. Control fluid consumption approx. 1.5 gpm (5.5 l/min) max. RE-A 92711/04.2017, Bosch Rexroth AG
A10VSO Series 31 Axial piston variable pump ED – Electrohydraulic pressure control 18 ED – Electrohydraulic pressure control The ED valve is set to a certain pressure by a specified variable solenoid current. Influence of the pressure setting on standby (maximally energized) 500 (34) an increase or decrease in the pump swivel angle (flow) in 465 (32) order to maintain the electrically set pressure level. The pump thus only delivers as much hydraulic fluid as the consumers can take. The desired pressure level can be set steplessly by varying the solenoid current. As the solenoid current signal drops towards zero, the pressure will be limited to pmax by an adjustable hydraulic pressure cut-off (secure fail safe function in case of power failure, e.g. for fan speed control). The swivel time characteristic of the ED control was optimized for the use as a fan drive system. When ordering, specify the type of application in plain text. Working pressure [psi (bar)] Static current-pressure characteristic curve ED (negative characteristic curve measured with pump in zero stroke) 4000 (280) 435 (30) 405 (28) 375 (26) 350 (24) 320 (22) 290 (20) 260 (18) 230 (16) 200 (14) 2050 2300 2600 2900 3200 3500 3800 4100 (140) (160) (180) (200) (220) (240) (260) (280) Maximum pressure setting [psi (bar)] Circuit diagram ED71/ED72 X ED deactivation of control Maximum adjustable control pressure 2050 (140) 0 Standby [psi (bar)] With changes on the consumer (load pressure), this causes Minimum adjustable control pressure 0 Current I/Imax L 1 B Hysteresis static current-pressure characteristic curve 45 psi (3 bar). Maximum working pressure P [psi (bar)] (deenergized) Flow-pressure characteristic curve Setting
RE-A 92711/04.2017, Bosch Rexroth AG Axial piston variable pump A10VSO Series 31 Hydraulic fluids 5 Filtration of the hydraulic fluid Finer filtration improves the cleanliness level of the hydraulic fluid, which increases the service life of the axial piston unit. A cleanliness level of at least 20/18/15 is to be maintained according to ISO 4406.
for your axial piston variable pump A10VO or A10VSO. Please request the installation drawing from your contact at Bosch Rexroth. Installation drawing Axial piston variable pump A10V(S)O, size 18 (A10VSO), size 28 to 140 (A10VO) Contains the permissible technical data. 92701 Data sheet Axial piston variable pump A10VSO, size 18 to 140
Axial piston variable pump A7VO Data sheet Series 63 Sizes NG250 to 500 Nominal pressure 350 bar Peak pressure 400 bar Open circuit RE 92203/06.09 1/52 Replaces: 05.99 Features – Variable axial piston pump with tapered piston rotary group in bent axis design for hydrostatic drives in open circuits
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7.4.9 Hydraulically connecting the axial piston unit 36 7.4.10 Electrically connecting the axial piston unit 41 7.5 Performing flushing cycle 42 8 Commissioning 43 8.1 Initial commissioning 43 8.1.1 Filling the axial piston unit 43 8.1.2 Testing the hydraulic fluid supply 44 8.1.3 Performing a functional test 45 8.2 Running-in phase 45
Axial piston pump A10V in swashplate design is used for hydrostatic transmission in open loop circuits. Flow is proportional to drive speed and displacement. By adjusting the position of the swashplate it is possible to smoothly vary the flow. A10V - 52/53 Valve plate End cover Control valve Variable Piston DFR piston Cylinder block Swash plate .
forces the swashplate into an inclined position. The pump control, acting on input from the operator, by modulating pressure balance across the servo piston, sets displacement in the system circuit. Service Manual Series 90 Pumps Introduction 520L0818 Rev File Size: 3MBPage Count: 72Explore furtherSeries 90 Axial Piston Pumps Technical Information Manualwww.precisionfluidpower.comSeries 90 180cc Pump Parts Manual - PV Globalpvglobal.com.sgSeries 90 130cc Pump Parts Manual - PV Globalpvglobal.com.sgSeries 90 100 cc Axial Piston Pump Parts Manualwww.moorepumps.comSundstrand Series 90 Replacement Partsscrewmax.comRecommended to you b
EATON 620 MOBILE PISTON PUMP CATALO E-PPI-TM017-E6 uly 2018 wwweatoncom 2 Model codes 620 Series Mobile Piston Pump 1 2 3 Pump series ADY – 620 series open circuit piston pump 4 5 6 Pump displacement 074 – 74 .4 cm3/r [4 .54 in3/r] 098 – 98 .0 cm3/r [5 .98 in3/r] 7 Input shaft rotation R – Right hand L – L
The module scst_user API is de ned in scst_user.h le. 3 IOCTL() functions There are following IOCTL functions aailable.v All of them has one argument. They all, except SCST_USER_REGISTER_DEVICE return 0 for success or -1 in case of error, and errno is set appro-priately. 3.1 SCST_USER_REGISTER_DEVICE
