Parker PVP Series Piston Pump | PVP16 PVP41 PVP48 | PVP4836C2R26A4CP11

The PVP Series axial piston pumps from Chengyuan Hydraulic are high-performance power units fully compatible with Parker industry standards. Designed for open-circuit systems, the PVP series is renowned for its exceptional power-to-weight ratio and minimal pressure pulsation. For core models like PVP16, PVP41, and high-displacement PVP4836, we utilize high-strength, fatigue-resistant cast iron housings. Every pump undergoes 100% simulated full-load condition testing to ensure volumetric efficiency at its rated pressure (250 bar/3600 PSI) matches OEM performance, guaranteeing 100% original-place interchangeability.

Technical Specifications :

• Series Model: PVP Series (Axial Piston Pump)

• Nominal Sizes (Displacement): 16cm³/rev (PVP16) / 41cm³/rev (PVP41) / 48cm³/rev (PVP48)

• Rated Operating Pressure: 250 bar (3625 PSI)

• Peak Pressure: 310 bar (4500 PSI)

• Rated Speed: 1800 rpm – 3000 rpm (depending on displacement)

• Control Methods: Pressure Compensator (C) / Load Sensing (A) / Remote Pressure (R)

• Mounting Flange: SAE A (PVP16) / SAE B (PVP41/48) 2-Bolt Standard

• Shaft Options: SAE Straight Keyed or Splined Shaft

• Rotation: R (Right Hand/CW) / L (Left Hand/CCW)

Key Technical Advantages:

• High-Strength Cast Iron Housing: The PVP series features a robust cast iron body rather than aluminum. This enhances resistance to deformation under high-pressure spikes and absorbs mechanical vibrations, resulting in quieter and more durable operation.

• Rapid Compensator Response: Equipped with high-sensitivity compensator mechanisms (options C/A). When system demand changes abruptly, the pump adjusts its swashplate angle in milliseconds, effectively preventing over-pressurization.

• Optimized Valve Plate Lubrication: By precision-grinding the contact surfaces between the cylinder and the valve plate, a uniform hydrostatic lubrication film is maintained even at 250 bar, drastically reducing metal-to-metal wear.

• Superior Self-Priming Performance: Optimized internal suction galleries ensure excellent self-priming capability even at high rated speeds, reducing the risk of cavitation damage.

Application Areas:

• Industrial Machinery: Plastic processing machines, hydraulic presses, and metal forming equipment.

• Mobile Equipment: Material handling machinery, drilling rig auxiliary systems, and mobile power units.

• Specialty Vehicles: Refuse trucks, tow trucks, and sanitation machinery.

Expert Maintenance Tips:

• Mandatory Case Priming: Axial piston pumps must never run dry. Before initial startup, the housing must be filled with clean hydraulic oil through the highest drain port.

• Drain Line Backpressure: Ensure the case drain line is plumbed directly to the tank with backpressure kept below 1.5 bar. Excessive backpressure can damage the shaft seal or interfere with control accuracy.

• Fluid Cleanliness Standards: To protect the precision-ground internal components, the system should maintain a filtration level of 10μm, ensuring fluid cleanliness complies with ISO 4406 18/16/13 standards.