Yuken PV2R Series Vane Pump | PV2R1 PV2R2 PV2R12 PV2R23 | Low Noise High Pressure

The PV2R Series high-pressure, low-noise vane pumps from Chengyuan Hydraulic are high-performance fluid power components fully compatible with Yuken industrial standards. Specifically engineered for industrial machinery requiring an ultra-quiet work environment, the PV2R series utilizes premium cartridge kits and high-strength ductile iron housings to deliver smooth flow output at pressures up to 21MPa. Every single pump (e.g., PV2R1-8, PV2R2-47) and double pump (e.g., PV2R23-41-76) undergoes 100% simulated condition full-load testing to ensure flow characteristics and mounting dimensions match original specifications, guaranteeing 100% original-place interchangeability.

Technical Specifications :

• Core Model Series: PV2R1, PV2R2, PV2R3 (Single); PV2R12, PV2R23 (Double)

• Displacement Range: 6.0 mL/r up to 116 mL/r (across the series)

• Double Pump Example: PV2R23-41-76-L-REAB (Front 41 mL/r, Rear 76 mL/r)

• Nominal Operating Pressure: 21 MPa (210 bar)

• Maximum Rated Speed: 1800 rpm

• Minimum Rated Speed: 600 – 750 rpm

• Mounting Type: F (Flange) / L (Foot Mount)

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

• Port Positions: A (Upward), B (Downward), R (Right), L (Left)

Key Technical Advantages:

• Ultra-Low Noise Characteristics: The PV2R series incorporates patented stator curves and discharge port pulse damping technology. Even at full 21MPa load, the noise levels remain significantly lower than standard gear or piston pumps, making them the gold standard for indoor injection molding machines.

• Dual-Circuit Versatility: Double pumps (like PV2R12/23) feature a common inlet and independent outlets. This allows for high-pressure/low-flow and low-pressure/high-flow combinations, optimizing system power consumption and circuit efficiency.

• High-Reliability Vane Design: Precision-ground vane tips combined with self-balancing side plates reduce mechanical impact on the stator track. This enables a 21MPa pressure rating while significantly extending service life.

• Modular Maintenance Design: The cartridge kit structure allows for internal component replacement without disconnecting the pump housing from the hydraulic lines, greatly reducing downtime and maintenance costs.

Application Areas:

• Industrial Machinery: Injection molding machines, rubber vulcanizing presses, shearing machines, and press brakes.

• Precision Machine Tools: CNC lathes, grinding machines, and lubrication circuits.

• Press Equipment: Small hydraulic presses, balers, and metal scrap compactors.

Expert Maintenance Tips:

• Rotation Verification: Always verify that the motor rotation matches the pump marking (R or L) before startup. Vane pumps are strictly unidirectional; even momentary reverse rotation can jam the vanes and score the stator.

• Suction Vacuum Control: Vane pumps are sensitive to inlet pressure. Maintain suction pressure between -0.03MPa and +0.03MPa. Clogged suction filters cause severe cavitation noise and must be replaced immediately.

• Initial Priming: Fill the pump with clean hydraulic oil through the outlet port before the first run. For double pumps (e.g., PV2R23), utilize “jogging” starts to ensure the pump chambers are fully primed before applying full load.