Vickers PVB PVQ Series Piston Pump | PVB5 PVB10 PVB15 | Axial Variable Displacement Pump

The PVB and PVQ Series axial variable displacement piston pumps by Chengyuan Hydraulic are high-efficiency components fully compatible with Vickers (Eaton) industrial standards. This range includes versatile models such as PVB5, PVB10, and PVB15-RSY-30-CMC-11-JA-A. Known for their compact envelope and rapid response times, PVB pumps are engineered to operate reliably at pressures up to 21 MPa. Every unit offers 100% original-place interchangeability and undergoes 100% full-load simulated testing to ensure that pressure compensator accuracy and volumetric efficiency match OEM technical specifications.

Technical Specifications :

• Core Models: PVB5, PVB10, PVB15, PVB20, PVB29, PVQ10, PVQ13

• Displacement Range: $10.5\text{ cc/rev}$ to $94\text{ cc/rev}$ (PVB15 is approx. $33\text{ cc/rev}$)

• Rated Operating Pressure: $21\text{ MPa (210 bar / 3000 psi)}$

• Peak Pressure: $28\text{ MPa (280 bar / 4000 psi)}$

• Maximum Speed: $1800\text{–}3000\text{ rpm}$ (depending on size)

• Control Options: C (Pressure Comp), CM (Low Pressure Comp), CVP (Load Sensing)

• Rotation: R (Right hand/Clockwise), L (Left hand)

• Design Series: 20, 30, 31 series

Key Technical Advantages:

• High-Response Compensators: Equipped with sensitive pressure control valves, PVB pumps adjust displacement to near-zero within milliseconds once the set pressure is reached. This drastically reduces parasitic power loss and prevents system overheating.

• Hydrostatically Balanced Internals: The rotating group utilizes hydrostatic balancing, which minimizes mechanical contact between the piston shoes, swashplate, and valve plate. This ensures a volumetric efficiency of over 90% even under high-frequency load cycles.

• Compact Lightweight Design: The combination of high-strength alloys and optimized housing geometry reduces the overall footprint and weight, enhancing the power-to-weight ratio for mobile and industrial applications.

• Low Noise Operation: By optimizing the pre-compression grooves in the valve plate, flow ripples are suppressed at the source. This results in a quieter operating environment, meeting modern industrial noise regulations.

Application Areas:

• Industrial Machinery: Machine tool clamping, light-duty presses, and automated production line power units.

• Mobile Equipment: Auxiliary circuits for mini-excavators, street sweepers, and specialized agricultural tractors.

• Conveyance Systems: Control power for hydraulic winches and belt drive systems.

Expert Maintenance Tips:

• Viscosity Management: Use premium ISO VG 32 or 46 anti-wear hydraulic oil. Incorrect viscosity can lead to excessive internal leakage or pump cavitation.

• Suction Inlet Integrity: Inlet vacuum must not exceed $0.016\text{ MPa}$. Ensure the suction line is perfectly sealed; any air ingestion will cause catastrophic erosion of the internal rotating group.

• Compensator Tuning: When adjusting the C or CM compensator bolts, always use a calibrated pressure gauge. Ensure the locknut is tightened after adjustment to prevent pressure drift caused by vibration.