PV7-1X/06-10RA01MA0-10-P65Q12 PV7-2X/20-25RA01MA0-10-P63Q35 PV7-1X/06-10RA01MA0-10-P70Q12 Rexroth blade pump German original hydraulic pump PV7 series oil pump
German original hydraulic pump from the PV7 series, designed for industrial applications requiring reliable oil pump performance with pressure compensation control.
| Parameter/Property Category | Direct-Acting (PV7-A) Series | Pilot-Operated (PV7-C/D/N/W) Series | Unit | Remarks |
|---|---|---|---|---|
| Model Range | PV7-1X/06-10RA01MA0-10, PV7-2X/20-25RA01MA0-10 | PV7-1X/14-20RE01MC0-16, PV7-1X/100-118RE07KD0-16 | - | 1X/2X=component series; 06/14/20=frame size |
| Displacement per Revolution | 10-25 | 14-150 | cm³/rev | Displacement varies by specific model suffix |
| Max. Continuous Working Pressure | 100 | 160 | bar | PV7-A: ≤100 bar; PV7-C/D/N/W: ≤160 bar |
| Max. Peak Pressure | 120 | 200 | bar | Short-term (≤5s) overload only |
| Speed Range | 600-2800 | 600-3600 | rpm | Higher speed for smaller displacement models |
| Max. Flow Rate (at 1800 rpm) | 36 | 270 | l/min | Calculated at rated displacement |
| Volumetric Efficiency (Rated Condition) | ≥90% | ≥92% | % | At 160 bar, 1800 rpm, ISO VG 46 oil |
| Total Efficiency (Nominal Operation) | ≥80% | ≥82% | % | Includes mechanical & volumetric efficiency |
| Suction Pressure Range | 1 | -0.8 to +1 | bar | Absolute pressure: 0.2-1.1 bar |
| Fluid Compatibility | Mineral oil (HLP), synthetic oil (HETG/HEES) | Mineral oil (HLP), synthetic oil (HETG/HEES) | - | Use FKM seals for synthetic fluids |
| Fluid Viscosity Range | 10-1000 (operation); 2-1500 (start-up) | 10-1000 (operation); 2-1500 (start-up) | mm²/s | Optimal: 16-160 mm²/s |
| Fluid Temperature Range | -20 to +80 | -20 to +80 | °C | Storage: -40 to +90 °C |
| Noise Level (1 m Distance, Rated Operation) | ≤63 | ≤65 | dB(A) | Pilot-operated models have optimized noise reduction |
| Mounting Standard | ISO 3019-2 flange | ISO 3019-2 flange | - | Optional foot mounting for some models |
| Shaft Connection | ISO 4162 splined shaft | ISO 4162 splined shaft | - | Keyed shaft available on request |
| Seal Material | NBR (standard); FKM (optional) | NBR (standard); FKM (optional) | - | NBR for mineral oil; FKM for synthetic oil |
| Weight | 8-12 | 10-35 | kg | Depends on displacement and control type |
| Control Type | Direct-acting pressure compensation | Pilot-operated pressure/flow control | - | PV7-A: direct-acting; PV7-C/D/N/W: pilot-operated |
| Response Time (Pressure Rise) | 40-60 | 20-40 | ms | Faster response for pilot-operated models |
| Housing Material | GG25 cast iron | GG25 cast iron | - | High strength, vibration-resistant |
| Rotor/Stator Material | 42CrMo4 alloy steel (quenched & tempered) | 42CrMo4 alloy steel (quenched & tempered) | - | High hardness & wear resistance |
| Vane Material | Wear-resistant powder metallurgy alloy | Wear-resistant powder metallurgy alloy | - | Self-lubricating & anti-seizure |
Signs of excessive internal leakage include insufficient system pressure, slow actuator movement, increased pump temperature rise, and decreased flow rate under rated speed and pressure; a pressure holding test can be performed for verification.
The PV7 series includes fixed-displacement models (PV7-1X) and variable-displacement models (PV7-2X); variable-displacement models can adjust the flow rate according to system demand by means of pressure compensation or flow compensation.
The maximum rated speed varies with displacement; small-displacement models (≤20 cm³/rev) can reach up to 3000 rpm, while large-displacement models are generally limited to 1800-2500 rpm; refer to the product manual for specific models.
The recommended oil cleanliness level is ISO 4406 Class 18/15 or higher; regular oil filtration and tank cleaning are required to prevent wear of internal components caused by particle contaminants.
Mount the pump on a rigid base to reduce vibration; align the pump shaft with the motor shaft (coaxiality error ≤0.1 mm), use flexible couplings for connection, and ensure the suction port is lower than the oil level in the tank or use a charge pump for auxiliary suction in case of high installation positions.
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