Variable displacement Brueninghaus Hydromatik Rexroth A4VSG pump |
Axial piston, swash plate design, variable displacement pump model A4VSG is designed
for hydrostatic transmissions in closed circuit.
Flow is proportional to input speed and displacement, and is infinitely variable by adjustment of the swash plate.
Nominal pressure 5100 psi (350 bar). Peak pressure 5800 psi (400 bar)
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Figure :
– slot-controlled swashplate design – infinitely variable adjustment of displacement – reversible flow – permissible nominal pressure 350 bar – low noise level – long service life – drive shaft capable of absorbing axial and radial loads – operation on HF fluids possible with reduced operating parameters |
– high power/weight ratio |
Ordering code:
A |
A4VS |
G |
250 |
DR |
/ |
30 |
-- |
R |
P |
P |
B |
10 |
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1 |
2 |
3 |
4 |
5 |
6 |
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7 |
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8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
More explanation:
1 Fluid: Blank= Petroleum oils
E= HF-Fluids (except Skydrol)
2 Version: A = SAE version
Blank= Metric version
3 Axial piston unit: Variable pump, swashplate design, industrial applications.
4 Operation model: Pump, closed circuit
5 Size: displacement 40, 71, 125, 180, 250, 355, 500, 750, 1000 (cm3/rev.)
6 Control device: DR=Constant pressure control
LR=Const. Power control with hyperbolic curve
MA=Manual control
EO=Hydraulic control, with proportional valve
HD=Hydraulic control, pilot pressure dependent
7 Series: 10, 22, 30
8 Direction of rotation: R= right. L= left (Viewed on shaft end)
9 Seals: P= NBR (Nitrile rubber to DIN ISO 1629) with shaft seal FPM
V= FPM (Fluoride rubber to DIN ISO 1629)
10 Shaft end: P= Metric Parallel with key to DIN 6885
Z= Metric splined shaft per DIN 5480
11 Mounting flange: B= ISO 4-bolt
12 Port connections: 10=Port A,B: SAE on the side (same side), metric mounting threads
13 Through drive: N00= Without auxiliary pump, without through drive
K31= ISO 125, 4-hole, Splined shaft 32x2x30x14x9g, A4VSO/H/G 40
K33= ISO 140, 4-hole, Splined shaft 40x2x30x18x9g, A4VSO/H/G 71
K34= ISO 160, 4-hole, Splined shaft 50x2x30x24x9g, A4VSO/H/G 125
K34= ISO 160, 4-hole, Splined shaft 50x2x30x24x9g, A4VSO/G 180
K35= ISO 224, 4-hole Splined shaft 60x2x30x28x9g, A4VSO/H/G 250
K99= With through drive, without hub or intermediate flange, with cover closed
14 Valves: 0= Without valve block
9= Valve block SDVB mounted
15 Filtration: N= Without filter
F= Filter in boost circuit, mounted
Nominal size |
A4VSG71 |
A4VSG125 |
A4VSG180 |
A4VSG250 |
A4VSG355 |
A4VSG500 |
A4VSG750 |
A4VSG1000 |
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Nominal pressure |
p N |
bar |
350 |
350 |
350 |
350 |
350 |
350 |
350 |
350 |
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Maximum pressure |
p max |
bar |
400 |
400 |
400 |
400 |
400 |
400 |
400 |
400 |
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Displacement |
Vg max |
cm³ |
71 |
125 |
180 |
250 |
355 |
500 |
750 |
1000 |
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Speed1) |
n max |
rpm |
3200 |
2600 |
2400 |
2200 |
2000 |
1800 |
1600 |
1600 |
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Flow |
at n max |
q V max |
l/min |
227 |
325 |
432 |
550 |
710 |
900 |
1200 |
1600 |
Power |
Δ p = 350 bar |
Pmax |
kW |
132 |
190 |
252 |
321 |
414 |
525 |
700 |
933 |
Torque |
Δ p = 350 bar |
T max |
Nm |
395 |
696 |
1002 |
1391 |
1976 |
2783 |
4174 |
5565 |
Weight (approx.) |
m |
kg |
60 |
107 |
112 |
220 |
235 |
335 |
500 |
644 |
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Hydraulic Fluid
The A4VSG pumps in the standard design, should be used with good quality, petroleum oil based, anti-wear hydraulic fluids. More detailed information regarding the selection of hydraulic fluids and their application limits can be found in our Data Sheets RA 90 220 (Petroleum Oil), RA 90 221 (Biodegradable Fluids) and RA 90 223 (Type HF–Fire Resistant/Synthetic Fluids).When operating with environmentally compatible fluids (Bio- degradable) or Fire Resistant (Type HF synthetic fluids) possible reduction of the operating specifications may be required. Please consult with us and your fluid supplier.
Bearing flushing
For a reliable continuous operation bearing flushing is required with the following operating conditions:
– Applications with special fluids (non mineral) due to limited lubricity and narrow temperature range
– operation with mineral oils, however with marginal conditions for temperature and viscosity
– with vertical mounting (shaft up). In order to ensure lubrication of front bearing and shaft seal, we recommend bearing flushing.
The bearing flushing port "U" is located in the mounting flange area of the pump. The flushing oil flows through the pump's front bearing and leaves via the case drain.
Notes on Hydraulic Fluid Selection
In order to select the correct fluid, it is necessary to know the operating temperature in the tank (open circuits) in relation to the ambient temperature.
The hydraulic fluid should be selected so that, within the operating temperature range, the fluid viscosity is within the optimum range íopt (see shaded area of the selection diagram). We recommend
that the higher viscosity grade is selected in each case.
Example: At an ambient temperature of X°, the operating temperature in the reservoir is 140 °F (60 °C). In the optimum operating viscosity range opt, (shaded area), this corresponds to viscosity grades VG 46 or VG 68, VG 68 should be selected.
Important: The leakage fluid (case drain fluid) temperature is influenced by pressure and speed and is typically higher than the tank temperature. However, maximum temperature at any point in the system must be less than 195°F (90°C).
Installation notes
Optional installation position. The pump housing must be filled with fluid during commissioning and stay full when operating. In order to obtain the lowest noise level, all connections (suction, pressure, case drain ports) must be linked by flexible couplings to tank.Avoid placing a check valve in the case drain line. This may be permissible in individual cases, but only after consultation with us.
Details model of Rexroth A4VSG pump |
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A4VSG71HD3D/11R-PPB10N00 |
A4VSG500HD1G/30R-PZH10K079N |
A4VSG125DP/30R-PPB10N00 |
A4VSG500HD1GT/30R-PPH10K439 |
A4VSG180HD1DT/30R-PPB10H009 |
A4VSG71HD3D/11R-PPB10N000NE |
A4VSG180EM/10R-PPB10N00 |
AA4VSG180EO2/30R-PPB13N00 |
A4VSG250HD3A/30R-PPB10N00 |
AA4VSG125EO2/30R-PPB13N00 |
A4VSG355HW/30R-PPB10K520NE |
AA4VSG355DRG/30R-PPB13N00 |
A4VSG500HD1G/30R-PZH10K079 |
AA4VSG355EO2/30R-PPB25N00 |
A4VSG750HD/22R-PPH10K99 |
AA4VSG180MA/30R-PPB13N00 |
A4VSG1000HD1G/30R-PZH10K72 |
AA4VSG355HD1/30R-PPB13N00 |
A4VSG125DP/30R-PPB10N000N |
AA4VSG125DR/30L-PPB13N00 |
A4VSG125EO2/30R-PKD60K020NE |
AA4VSG180DR/30R-VPB13N00 |
A4VSG125HD1/30R-PSD60N000N |
AA4VSG125LR2/30R-PPB13N00 |
A4VSG125HD1D/30R-PKD60N009N |
AA4VSG180DRG/30R-PPB13N00 |
A4VSG125HD1D/30R-VKD60K020NE |
AA4VSG125DRG/30R-PPB13K33 |
A4VSG125HD1DT/30R-PSD60N009N |
A4VSG180LR2/30R-PPB13N00 |
A4VSG125HS/30W-PKD60K020N |
A4VSG125LR2N/30R-PPB13N00 |
A4VSG180EO2/30R-PKD60K020NE |
A4VSG180DR/30R-PPB13N00 |
A4VSG180EO2K/30R-PZB10K279NE |
A4VSG180DFR/30R-PPB13N00 |
A4VSG180HD1DT/30R-PKD60H009F |
A4VSG250DFR/30R-PPB13N00 |
A4VSG180HD1T/30R-PPB10K680N |
A4VSG250LR2/30R-PPB13N00 |
A4VSG180HD3D/30R-PZB10N000NE |
A4VSG250LR2N/30R-PPB13N00 |
A4VSG250DRG/30R-PKD60K080N |
A4VSG250DRG/30R-PPB13N00 |
A4VSG250DS1/30W-PSD60T990N |
A4VSG250DR/30R-PPB13N00 |
A4VSG250HD1A/30R-VZB10K680N |
A4VSG71LR2/10R-PPB13N00 |
A4VSG250HD1D/30R-PKD60N000 |
A4VSG125DFR/30R-PPB13N00 |
A4VSG250HD1D/30R-PSD60N000 |
A4VSG125LR2/30R-PPB13N00 |
A4VSG250HD1P/30R-PPB10G300 |
A4VSG180DRG/30R-PPB13N00 |
A4VSG250HD3D/30R-PPB10N00 |
A4VSG125LR2/30R-PPB13N00 |
A4VSG250HS/30R-PKD60H029F |
A4VSG125DP/30R-PPB13N00 |
A4VSG250HSE/30R-PPB10N00 |
A4VSG125DFR/30R-PPB13N00 |
A4VSG355HD1BU/30R-VKD60H069 |
A4VSG355HD1/30R-PPB13N00 |
A4VSG355HD1DU/30R-PKD60K249N |
A4VSG355LR3N/30R-PPB25N00 |
A4VSG355HW/30R-PKD60N00 |
A4VSG500LR3N/30R-PPH25N00 |
A4VSG355HW/30R-PPB10K520 |
A4VSG750LR3N/30R-PZH25N00 |
A4VSG500DS1/22W-PPH10N00 |
AA4VSG355EO2/30R-PKD63K52 |
A4VSG500DS1/30W-PPH10K430 |
A4VSG500DR/30R-PPH25N00 |
A4VSG500HD1/30R-PPH10N00 |
A4VSG750HS3/30R-PZH25N00 |
A4VSG500HD1DT/30L-PPH10K049N |
A4VSG1000HS3/30R-PZH25N00 |
A4VSG500HD1G/30R-PZH10K029N |
A4VSG40LR2/10R-PPB13N00 |
A4VSG500HD1GT/30R-PPH10K439N |
A4VSG71LR2/10R-PPB13N00 |
A4VSG125EO2/30R-PKD60K020N |
A4VSG71LR2G/10R-PPB13N00 |
A4VSG125EO2/30R-PKD60K039N |
A4VSG40LR2G/10R-PPB13N00 |
A4VSG125HD1D/30R-PKD60N0 |
A4VSG250DR/30R-PPB13N00 |
A4VSG125HD1D/30R-PSD60K240N |
A4VSG250DP/30R-PPB13N00 |
A4VSG125HD1DT/30R-PKD60K049F |
A4VSG250DRG/30R-PPB13N00 |
A4VSG125HD3D/30R-PPB10N00 |
A4VSG250LR2G/30R-PPB13N00 |
A4VSG125HSE/30R-PKD60K030N |
A4VSG250LR2N/30R-PPB13N00 |
A4VSG180EO2/30R-PPB10K029N |
A4VSG250HS3/30R-PPB13N00 |
A4VSG180HD1A/30R-PSD60K240N |
A4VSG250LR2/30R-PPB13N00 |
A4VSG180HD1DT/30R-PPB10H009F |
A4VSG250DFR/30R-PPB13N00 |
A4VSG180HD3D/30R-PPB10N00 |
A4VSG1000LR3N/30R-PZH25N00 |
A4VSG180HW/30R-PPB10K020N |
A4VSG125DR/30R-PPB13N00 |
A4VSG250DS1/30W-PSD60T000 |
A4VSG250LR3N/30R-PPB25N00 |
A4VSG250HD1A/30R-VZB10K350N |
A4VSG180DFR/30R-PPB13N00 |
A4VSG250HD1D/30R-PKD60H009F |
A4VSG125DRG/30R-PPB13N00 |
A4VSG250HD1D/30R-PKD60N00 |
A4VSG500HS3/30R-PPH25N00 |
A4VSG250HD1DU/30R-PKD60K049N |
A4VSG355HS3/30R-PPB13N00 |
A4VSG250HD3A/30R-PPB10N00 |
A4VSG180DR/30R-PPB13N00 |
A4VSG250HD3D/30R-PPB10K349 |
A4VSG125DR/30R-VPB13N00 |
A4VSG250HM1/30L-PKD60N00 |
A4VSG125LR2N/30R-PPB13N00 |
A4VSG250HS/30R-PKD60H029FES1430 |
A4VSG125LR2G/30R-PPB13N00 |
A4VSG355DS1/30L-PZB10T000NE |
A4VSG125LR2D/30R-PPB13N00 |
A4VSG355HD3D/30R-PZB10K840N |
A4VSG180LR2G/30R-PPB13N00 |
A4VSG355HW/30R-PPB10K020NE |
A4VSG180LR2/30R-PPB13N00 |
A4VSG500DS1/30W-PPH10K180NE |
A4VSG180LR2N/30R-PPB13N00 |
A4VSG500DS1/30W-PZH10T990N- |
A4VSG180DR/30R-PPB13N00 |
A4VSG500HD1DT/22R-PPH10H009N |
A4VSG250HD1BT/30R-PKD63K22 |
A4VSG500HD1DT/30R-PPH10K049N |
A4VSG250DRG/30R-PKD63K22 |
A4VSG250LR2G/30R-PKD63N00 |
A4VSG250LR2G/30R-PKD63N00 |
