Vickers Vane Pump | 25VQ 20V 35V 45V Hydraulic Pump Replacement

Genlu Hydraulic proudly introduces our V / VQ Series high-performance vane pumps. Designed for industrial and mobile applications where efficiency and reliability are paramount, our series covers the 20V, 25VQ, 35V, and 45V specifications. We provide a precise match for models including 20V8AM-1A22R, 25VQ14A-1C20, 25VQ17A-1C20, 25V21A-1C22R, 25V12A-1A22R, and 25V17A-1C22R. Genlu unequivocally guarantees 100% Drop-in Interchangeability in mounting flanges, shaft specifications, port configurations, and pressure/flow characteristics relative to Vickers original standards. Backed by our uncompromising 100% Simulation Load Testing, each unit is validated for volumetric efficiency, noise levels, and endurance before dispatch, ensuring relentless, stable fluid power for your equipment.

Technical Specifications 

• Product Series: Vickers V / VQ Series Vane Pump

• Specifications Covered: 20V, 25VQ, 35V, 45V

• Representative Models: 20V8AM-1A22R, 25VQ14A-1C20, 25V21A-1C22R, 25V17A-1C22R

• Rated Pressure: 14 – 21 MPa (Model-dependent)

• Max Displacement: Varies by housing size (8 GPM to 150+ GPM)

• Max Speed: 1800 – 2700 rpm

• Structural Configuration: Spring-loaded vane compensation, field-replaceable cartridge kit

• Mounting: SAE standard flange

Key Technical Advantages:

• Cartridge Kit Design: Features a world-class cartridge kit architecture, drastically simplifying maintenance. When wear occurs, users can swap the cartridge in minutes without disconnecting the pump from the system or removing hoses, significantly reducing downtime.

• Pressure-Balanced Compensation: Optimized vane-tip geometry and distribution-chamber timing automatically balance radial loads. This minimizes mechanical friction between rotor and stator, ensuring superior volumetric efficiency across the entire pressure range.

• Low Noise & Extended Life: The 12-vane design significantly reduces fluid pressure pulsation and operating noise, making this pump ideal for indoor industrial environments with strict acoustic regulations.

• Contamination Resilience: Compared to piston pumps, the V/VQ series offers higher tolerance to fluid contamination. Precision-lapped internal surfaces ensure reliable performance even in harsh, industrial-duty cycles.

Application Areas:

• Industrial Machine Tools: Primary pump for VMCs, HMCs, and complex hydraulic systems.

• Plastics Machinery: Auxiliary power units for injection molding machines.

• Heavy Hydraulic Presses: Power source for forging and metal-forming equipment.

• Mobile Machinery: Hydraulic assist for dump trucks and specialized off-road equipment.

Expert Maintenance Tips:

• Start-up Priming: After installation, fill the pump housing with hydraulic oil through the highest port to ensure it is fully primed. Never operate dry. Run at no-load for 3-5 minutes to purge all trapped air until the sound stabilizes.

• Fluid Cleanliness Management: While resilient, we recommend 25μm (or finer) filtration to maintain ISO 4406 18/16/13. Regular oil analysis is recommended, as degraded fluid can cause vane sluggishness.

• Speed & Temperature Compliance: Always adhere to the rated maximum speed. If operating in high-ambient temperatures, de-rate the maximum pressure by 10-15% to prevent premature wear of the shaft seal and stator faces due to thermal stress.

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