Rexroth PV7 Series Variable Vane Pump | PV7-1A PV7-17 | Hydraulic Pump

The PV7 Series variable vane pumps from Chengyuan Hydraulic are high-precision power units fully compatible with Rexroth industrial standards. Featuring radial clearance compensation and direct-operated pressure adjustment, these pumps automatically modulate displacement to match system demand, significantly reducing energy waste. For core models such as PV7-1A/100, PV7-40, and PV7-10, we utilize heat-treated high-hardness alloy steel stators and wear-resistant vanes. Every unit undergoes 100% simulated condition testing to ensure precise pressure compensation switching, guaranteeing 100% original-place interchangeability.

Technical Specifications :

• Series Model: PV7 Series (Design Series 1X)

• Displacement: 10cc, 45cc, 118cc /rev

• Nominal Pressure: 100 bar (10 MPa)

• Peak Pressure: 160 bar (16 MPa)

• Speed Range: 900 – 1800 rpm

• Control Type: Pressure Compensation (M: Pressure Control)

• Rotation: Clockwise (R)

• Mounting Standard: ISO/SAE 2-bolt standard flange

Key Technical Advantages:

• Excellent Pressure Compensation: The PV7 utilizes a direct-acting adjustment mechanism for rapid response. When the set pressure is reached, the pump quickly reduces eccentricity to a near-zero displacement state, suppressing temperature rise and saving energy.

• Ultra-Low Noise Operation: The stator profile is optimized to minimize flow pulsation during vane porting, maintaining operation noise levels between 60-65 dB(A) even under full load.

• High Volumetric Efficiency: Precision-ground side plates and vanes achieve superior radial and axial sealing. The anti-fatigue stator material ensures long-term reliability under frequent cycling conditions.

• Compact Footprint: With its integrated variable mechanism, the PV7 has minimal dimensions, making it ideal for space-constrained CNC machines or compact hydraulic power units.

Application Areas:

• CNC Machine Tools: Powering turret drives, chuck clamping, and auxiliary lubrication.

• Injection Molding: Supporting auxiliary control circuits requiring high pressure stability.

• Woodworking Machinery: Providing constant pressure for precision saws and edge banders.

• Automation Lines: Maintaining clamping pressure for multi-station fixtures.

Expert Maintenance Tips:

• Initial Priming: Before start-up, fill the housing with filtered hydraulic oil through the vent port and jog the motor to bleed air, preventing dry-run damage.

• Cleanliness Standards: The PV7 is sensitive to solid particles. We recommend maintaining oil cleanliness at NAS Class 8 (ISO 19/16) or better.

• Pressure Adjustment Limits: Avoid prolonged operation above the 160 bar peak pressure to prevent premature vane tip wear and subsequent pressure fluctuations.