Parameters of YUKEN Hydraulic Pump Model PV2R3-76

1. Model Interpretation

1.1 Model Coding Rules

• PV2R3: Series code, indicating the PV2R3 series single vane pump, which is characterized by large displacement, high pressure resistance and low noise emission. The “3” represents the frame size, suitable for medium to large flow requirements.
• 76: Displacement code, indicating the geometric displacement of the pump is 76.4 cm³/rev (4.66 cu.in./rev).
• Mounting Type: F (flange mounting) or L (foot mounting), which is specified in the model after the displacement code.
• Rotation Direction: R (clockwise when viewed from the shaft end) or L (counterclockwise when viewed from the shaft end).
• Port Directions: A (upper direction) or B (side direction) for both suction and discharge ports, indicated by the letters after the rotation direction code.
• Suffix Code: The last two digits (e.g., 43) represent the seal type and other specifications.

2. Technical Parameters

3. Product Features

• High Pressure Resistance: The maximum operating pressure can reach 21 MPa (3050 psi), suitable for heavy-duty hydraulic systems requiring high pressure operation.
• Low Noise Performance: Adopts arc-shaped vanes and high-order non-shock transition curve stator design, effectively reducing noise and vibration during operation, which is 3-5 dB(A) lower than similar products.
• Large Displacement: 76.4 cm³/rev displacement provides sufficient flow for medium to large hydraulic systems.
• Cartridge Kit Design: The main internal parts are built in the form of a cartridge kit, which minimizes downtime for replacement and maintenance, and allows for easy repair without removing the pump from the system.
• High Efficiency: Precision-machined components and optimized flow path design ensure high volumetric and overall efficiency, reducing energy consumption.
• Long Service Life: Wear-resistant materials and surface treatment technology for core components (rotor, stator, vanes), extending the service life to over 25,000 hours under normal working conditions.
• Wide Application Range: Compatible with various hydraulic oils and operating conditions, suitable for a variety of industrial applications.

4. Application Fields

• Injection Molding Machines: Used in mold clamping, injection, and ejector circuits, providing stable pressure and flow for precise plastic molding processes.
• Die Casting Machines: Suitable for high-pressure mold closing and injection systems requiring large flow rates.
• Hydraulic Presses: Used in main pressing circuits of medium to large hydraulic presses for metal forming and assembly operations.
• Plastic Extruders: Providing hydraulic power for screw drive and die head adjustment systems.
• Metallurgical Equipment: Auxiliary hydraulic systems for rolling mills, forging machines, and material handling equipment.
• Construction Machinery: Main hydraulic systems for small to medium-sized excavators, loaders, and cranes.
• Woodworking Machinery: Hydraulic systems for large-scale panel saws, edge banding machines, and pressing equipment.

5. Typical Model Variations

6. Installation and Operation Notes

• Maintain hydraulic oil cleanliness at NAS 7 level or higher, and install a high-precision filter (≥10 μm) in the suction line to prevent wear of precision components.
• Ensure proper priming before initial operation to prevent dry running damage to the pump. Fill the pump with hydraulic oil through the filling port before starting.
• Start the pump under no-load condition for at least 10 minutes, then gradually increase pressure to rated value to ensure the stable operation of the pump body and seals.
• Maintain proper oil temperature between 20°C and 60°C for optimal performance and service life. Install a temperature control system if necessary.
• Regularly inspect and replace hydraulic oil according to the operating environment and frequency (recommended every 2000-3000 hours of operation or 6 months, whichever comes first).
• Follow the specified torque values when assembling and disassembling to avoid damage to components. Refer to the YUKEN technical manual for detailed torque specifications.
• Use only genuine YUKEN replacement parts and cartridge kits to ensure pump performance and reliability. Non-genuine parts may cause performance degradation and shorten service life.
• Ensure proper alignment between the pump and motor to avoid shaft misalignment, which may cause bearing damage and oil leakage.
• Do not exceed the maximum allowable speed and pressure specified in the technical parameters to prevent pump damage.
• Regularly check for oil leakage, abnormal noise, and vibration during operation. If any abnormality is found, stop the pump immediately for inspection and maintenance.