Vickers Eaton PVQ Series Piston Pump | PVQ40 PVQ10 PVQ13 | Quiet Variable Displacement Pump

The PVQ Series axial piston variable pumps from Chengyuan Hydraulic are high-pressure components fully compatible with Vickers (Eaton) industrial standards. Known as the “Quiet” pump series, these units are specifically engineered for noise-sensitive industrial environments by optimizing internal timing and housing acoustics. For core models including PVQ10 (10.5cc), PVQ13 (13.8cc), and PVQ40 (41cc), we implement reinforced cylinder rotors and bronze-faced port plates. Every pump undergoes 100% simulated full-load testing before shipment to guarantee precise displacement regulation and stable operation at 210 Bar, ensuring 100% original-place interchangeability.

Technical Specifications :

• Series Model: PVQ Series (Design 20/21/30)

• Displacements: 10.5 $cm^3/r$ (PVQ10) / 13.8 $cm^3/r$ (PVQ13) / 41.0 $cm^3/r$ (PVQ40)

• Rated Operating Pressure: 210 bar (21 MPa)

• Max Intermittent Pressure: 250 bar (25 MPa)

• Speed Range: 600 – 1800 rpm

• Control Options: C21 (Pressure Compensator) / CM (Low Pressure Comp) / AR (None)

• Rotation: R (Clockwise) / L (Counter-clockwise)

• Shaft Configurations: Straight Keyed (S) / Splined (SS)

• Sealing: FKM (Viton) standard, compatible with multiple fluids

Key Technical Advantages:

• Patented Low-Noise “Quiet” Design: Utilizing a sound-attenuating housing and unique porting timing technology, the PVQ series significantly reduces flow pulsation and mechanical vibration, ensuring acoustic comfort in factory environments.

• High Volumetric Efficiency & Longevity: The interface between the cylinder block and port plate features bimetallic materials for superior cavitation and wear resistance, maintaining over 95% volumetric efficiency even under continuous 210 Bar pressure.

• Compact Envelope: The PVQ series features an extremely compact layout, offering a superior power-to-weight ratio that is ideal for space-constrained hydraulic power units (HPU).

• Responsive Compensator Control: The integrated compensator automatically adjusts displacement based on load pressure. Our precision-tuned springs and damping orifices ensure the pump destroke rapidly when the set pressure is reached, enhancing energy savings.

Application Areas:

• Machine Tools: Clamping and auxiliary systems for grinders, millers, and CNC machines.

• Plastic Machinery: Holding and drive circuits for small-scale injection molding machines.

• Mobile Gear: Steering and lift systems for scissor lifts and material handling vehicles.

• Conveyor Controls: Constant pressure control units in automated production lines.

Expert Maintenance Tips:

• Initial Priming: Before start-up, always fill the pump case with clean hydraulic oil through the case drain port to prevent dry-running of the piston-cylinder interface.

• Case Drain Pressure: Ensure the case drain line goes directly to the tank and remains below the fluid level. Case pressure must not exceed 2 bar to prevent shaft seal failure and compensator malfunction.

• Filtration Standard: We recommend a return filter with an absolute rating of $10 \mu m$. Maintain system cleanliness at ISO 18/16/13 or better to maximize pump lifespan.