PV2R PV2R1 PV2R2 PV2R3 Yuken Fixed Displacement Vane Pump 21MPa

Product Overview

The PV2R series high-pressure fixed-displacement vane pumps are classic hydraulic products originally developed by Yuken (Japan), covering single pumps PV2R1, PV2R2, PV2R3 and double pumps PV2R12, PV2R13, PV2R32, with representative models PV2R13-31-76-L-RAAR-43 and PV2R2-47-L-LAA-40. Our replacement units are manufactured in strict compliance with original design specifications and production processes, delivering 100% dimensional interchangeability and equivalent performance. Every unit undergoes full working condition testing at full pressure and full speed before delivery. Featuring high pressure stability, low noise operation, high volumetric efficiency and easy maintenance, these pumps serve as direct drop-in replacements for original Yuken vane pumps, significantly reducing equipment maintenance costs and downtime.

Technical Specifications

• Product Series: PV2R1, PV2R2, PV2R3 single high-pressure fixed-displacement vane pumps; PV2R12, PV2R13, PV2R32 double high-pressure fixed-displacement vane pumps
• Representative Models: PV2R13-31-76-L-RAAR-43, PV2R2-47-L-LAA-40
• PV2R1 Single Pump Displacement Range: 5.8 ~ 31.0 cm³/rev
• PV2R2 Single Pump Displacement Range: 26.0 ~ 75.0 cm³/rev
• PV2R3 Single Pump Displacement Range: 56.0 ~ 125.0 cm³/rev
• PV2R12 Double Pump Displacement Combination: 5.8~31.0 cm³/rev + 26.0~75.0 cm³/rev
• PV2R13 Double Pump Displacement Combination: 5.8~31.0 cm³/rev + 56.0~125.0 cm³/rev
• PV2R32 Double Pump Displacement Combination: 56.0~125.0 cm³/rev + 26.0~75.0 cm³/rev
• Rated Continuous Pressure (anti-wear hydraulic oil): 21 MPa (210 bar)
• Rated Continuous Pressure (standard hydraulic oil): 16 MPa (160 bar)
• Peak Pressure: 25 MPa (250 bar)
• Maximum Speed (PV2R1 / PV2R2, anti-wear oil): 1800 rpm
• Maximum Speed (PV2R1 / PV2R2, water-based fluid): 1200 rpm
• Maximum Speed (PV2R3, anti-wear oil): 1500 rpm
• Minimum Speed: 600 rpm
• Mounting: Foot mounting (L), flange mounting (F), compliant with international standard mounting dimensions
• Rotation: Standard clockwise (R, viewed from shaft end), optional counterclockwise (L)
• Port Position: 4-position adjustable, supporting various piping layouts
• Seal Material: Standard Nitrile Butadiene Rubber (NBR), compatible with petroleum-based hydraulic oils
• PV2R1 Series Weight: 3.5 ~ 8.5 kg
• PV2R2 Series Weight: 8.5 ~ 15.0 kg
• PV2R3 Series Weight: 15.0 ~ 22.0 kg
• Fluid Compatibility: Petroleum-based anti-wear hydraulic oil, standard hydraulic oil, water-glycol fluids, phosphate ester fluids
• Operating Viscosity Range: 13 ~ 860 cSt, optimal viscosity 16 ~ 60 cSt
• Noise Level: ≤ 55 dB(A) (at 1200 rpm, 21 MPa)
• Minimum Suction Pressure: 20 kPa at ≤1700 r/min; 0 kPa at 1700~1800 r/min

Key Technical Advantages

1. Low-Noise Design with High-Order Stator Curve: The stator inner profile adopts a high-order logarithmic spiral curve, finished by CNC precision lapping with surface roughness below Ra0.4. It effectively reduces vane impact and fluid pulsation in the transition zone, delivering operating noise as low as 55 dB(A), ideal for precision machining scenarios with low noise requirements.
2. High-Pressure Reinforced Structure with Pressure Compensation: The pump housing is made of high-strength cast iron with one-piece casting, combined with a hydraulic compensation mechanism at the vane root. It maintains stable volumetric efficiency at 21 MPa rated pressure and withstands 25 MPa peak shock pressure, with excellent load fluctuation resistance for heavy-duty hydraulic applications.
3. Cartridge Insert Design for Easy Maintenance: Featuring an integral cartridge pump core, maintenance and overhaul do not require disassembling the entire pump body and piping. The pump core assembly can be directly extracted for replacement or repair, greatly reducing equipment downtime and operating costs.
4. 100% Drop-In Interchangeability: All mounting dimensions, shaft specifications, port positions and connection methods strictly match the original Yuken PV2R series standards. Foot and flange mounting types are fully interchangeable, enabling direct replacement of original pumps without any modification to equipment base or piping.
5. Full Working Condition Factory Testing: Each pump undergoes 100% simulated working condition testing before delivery, covering volumetric efficiency, pressure pulsation and leakage verification across full speed and pressure ranges, ensuring consistent performance with original factory specifications and reliable quality.
6. High Volumetric Efficiency for Energy Saving: Precision-ground vanes match perfectly with the stator surface, combined with an optimized port plate throttling structure, achieving volumetric efficiency up to 94%. It effectively reduces power loss and system heat generation, improving overall energy efficiency.

Application Areas

• Hydraulic systems for injection molding machines, die casting machines, bending machines, punch presses and straightening machines
• Precision machine tool hydraulic systems: CNC lathes, machining centers, grinding machines, milling machines
• Heavy-duty industrial equipment: metallurgical rolling mills, mining machinery, light industry packaging machinery
• Hydraulic test benches and standard hydraulic power units (HPU)
• Automated production lines, industrial robots and manipulator hydraulic systems
• Auxiliary hydraulic systems for construction machinery and marine deck machinery

Expert Maintenance Tips

1. Installation Alignment Requirement: The coaxiality between pump shaft and prime mover shaft must be controlled within 0.05mm, with angular deviation no more than 0.5°. Foot mounting requires flatness of the mounting surface to avoid additional deformation stress on the pump body, preventing premature wear of bearings and seals.
2. Initial Start-Up Procedure: Fill the pump housing with clean hydraulic oil through the filler port after installation, and bleed air from the pump cavity. Start with jog operation to confirm rotation matches the marking, run at no load for 10~15 minutes, then gradually increase pressure to rated level.
3. Fluid Contamination Control: ISO VG46 anti-wear hydraulic oil is recommended. System fluid cleanliness must be maintained at NAS Class 8 or above. A 10μm suction filter and a 5μm return filter shall be installed. Regularly check fluid contamination level to prevent abrasive wear.
4. Scheduled Maintenance Interval: Inspect seal leakage, outlet pressure fluctuation and noise change every 2000 operating hours; replace hydraulic oil and main seals every 4000 operating hours. For long-term storage over 3 months, drain pump cavity oil and inject anti-rust oil with dust protection.
5. Operation Precautions: Do not operate continuously beyond rated pressure and speed. Avoid prolonged high-speed operation under no-load condition to prevent dry wear between vanes and stator. If system oil temperature continuously exceeds 80℃, shut down and check the cooling system to avoid accelerated seal aging.