Vickers PVB PVQ Series Axial Piston Pump | PVB5 PVB10 PVB15-RSY-30-CMC | Variable Displacement Hydraulic Pump

Chengyuan Hydraulic offers high-performance PVB and PVQ Series axial piston pumps, precision-engineered to serve as direct replacements for Vickers (Eaton) standards in industrial and mobile applications. Our range covers models such as PVB5, PVB10, PVB15-RSY-30-CMC-11, and more. A classic in the global hydraulic market, the PVB series is renowned for its compact design and high reliability. Chengyuan guarantees 100% Drop-in Interchangeability regarding SAE mounting flanges, shaft ends, and port configurations. Backed by our 100% Simulation Load Testing, each pump is validated for exceptional volumetric efficiency and minimal pressure pulsation under rated conditions, providing the perfect balance between original quality and cost-effectiveness.

Technical Specifications 

• Compatible Brand: Vickers / Eaton

• Model Codes: PVB5, PVB10, PVB15, PVB20, PVB29

• Displacement Range: 10.5 cm³/rev (PVB5) to 61.6 cm³/rev (PVB29)

• Rated Operating Pressure: 21 MPa (210 Bar)

• Peak Pressure: 28 MPa (280 Bar)

• Rated Speed: 1800 r/min (Up to 3000 r/min depending on control)

• Control Types: C (Pressure Compensator), CM (Low Pressure), CVP (Load Sensing)

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

• Housing Material: High-strength ductile iron

Key Technical Advantages:

• Hydrostatic Balanced Slipper Design: The piston slippers utilize a specialized hydrostatic balance structure that significantly reduces mechanical wear between the slipper and swashplate. Combined with Chengyuan’s precision lapping, this ensures high mechanical efficiency during continuous high-pressure operation.

• Monoblock Cylinder Construction: The cylinder block is manufactured from premium alloy steel with deep nitriding treatment. This drastically enhances the wear resistance of the cylinder bores and piston assemblies, extending service life in high-flow duty cycles.

• Optimized Valve Plate Timing: To address the noise characteristics of the PVB/PVQ series, we have optimized the relief notch geometry of the valve plate. This reduces pressure shocks during discharge and lowers operational noise by 3-5 decibels compared to competitors.

• High-Response Compensator: The compensator control mechanism is highly sensitive (typical response 20-50ms), quickly matching system load changes to minimize energy loss and prevent system overpressurization.

Application Areas:

• Industrial HPUs: Power source for die-casting machines, shears, and compact presses.

• Machine Tools: Auxiliary motion control systems for CNC machinery.

• Mobile Equipment: Brush drives or auxiliary circuits for small loaders and municipal sanitation vehicles.

• Conveying Systems: Conveyor line drives and hydraulic lifting platforms.

Expert Maintenance Tips:

• Case Priming: Before the first start or after a long shutdown, you MUST fill the pump case with clean hydraulic oil through the topmost drain port. Never start the pump dry, as it will cause shoe/swashplate failure within seconds.

• Case Pressure Management: The case pressure (drain pressure) for PVB pumps must not exceed 0.035 MPa. The drain line must return directly to the reservoir and be of sufficient diameter to prevent shaft seal blowout.

• Filtration Integrity: To protect the precision rotating group, return filtration of 10μm or better is recommended. Regularly monitor the oil for water content and oxidation.