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Pilot-operated hydraulic oil pump, PV7 series variable vane pump, manufactured by Rexroth in Germany
Technical Specifiions
Feature
PV7-A (Direct-Acting)
PV7-C/D/N/W (Pilot-Operated)
Unit
Notes
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-lubriing & anti-seizure
Service Life (Normal Conditions)
8000-10000
8000-10000
hours
Depends on oil cleanliness & maintenance
Available Variants
PV7-1X/40-55RE37MC3-08-A449
PV7-1X/40-45RE37MD3-16
PV7-1X/63-71RE07MC0-16
PV7-1X/40-71RE37MC7-08WG
PV7-1X/40-45RE37KC3-16
PV7-1X/10-20RE01KC0-10
PV7-1X/25-45RE01MC0-08
PV7-1X/25-30RE01KC0-16
PV7-1X/100-150RE07MC5-08
PV7-1X/40-71RE37KC0-08
PV7-1X/25-30RE01MC6-16
PV7-1X/16-20RE01MC0-16-P55
PV7-1X/25-45RE01MC3-08
PV7-1X/40-45RE37MC6-16
PV7-1X/63-94RE07MW0-08WH
PV7-1X/16-20RE01MC0-16-P52
PV7-1X/16-20RE01MD0-16
PV7-1X/25-30RE01MN0-16
PV7-1X/10-14RE01MC6-16
PV7-1X/16-20RE01MC6-16
PV7-1X/100-118RE07MC5-16WH-P125Q116
PV7-1X/16-20RE01MC3-16-C3.1
PV7-1X/100-118RE07MC5-16WH
PV7-1X/16-20RE01MD6-16
PV7-1X/25-30RE01MC3-16
PV7-1X/63-94RE07MC0-08-P50Q116
PV7-1X/100-118RE07MC7-16WG
PV7-1X/16-20RE01MC0-16-P70Q20
PV7-1X/63-71RE07MD6-16
PV7-1X/100-118RE07MC3-16
PV7-1X/40-45RE37MN0-16
Frequently Asked Questions
What is the sound pressure level of these pumps?
Noise levels are relatively low. For example, a PV7../06-10 pump operates at approximately 52-60 dB(A) at 1 meter distance during displacement, depending on pressure.
What is the typical drive power required?
Power consumption depends on pressure and flow. Charts show that for a PV7../06-10 pump at 100 bar and maximum flow, drive power is approximately 2.5 kW.
Maintenance & Troubleshooting
What should I do if the pump is noisy?
Check for cavitation (ensure inlet pressure is sufficient), fluid viscosity, contamination level, and that the zero stroke pressure is correctly set for optimal noise performance.
What should I check if the pump does not deliver expected flow?
Verify speed, inlet pressure, fluid viscosity, setting of the maximum flow adjustment screw, and check for internal wear or damage.
What causes excessive case drain flow?
Excessive case drain flow typically indies internal wear on the rotor, vanes, or control plate, allowing internal leakage to exceed specified limits.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Total Annual:
1 million-10 millon
Employee Number:
>50
Ecer Certification：
Verified Supplier
Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha... Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha...
