Specifications of YUKEN PV2R1, PV2R2, PV2R3 and PV2R4 Vane Pumps

1. YUKEN PV2R1 Series Vane Pumps

The PV2R1 series is a single vane pump with compact structure and high reliability, designed for medium-pressure hydraulic systems. It features low noise, stable flow output and easy installation, widely used in small and medium-sized machinery such as small injection molding machines, die-casting machines and light forging equipment.

1.1 Model Designation

Example: PV2R1-17-L-RAA-20

• PV2R1: Series number, indicating single vane pump with medium pressure and small displacement
• 17: Nominal displacement (cm³/rev), representing the volume of fluid delivered per revolution
• L: Foot mounting (F: Flange mounting, optional)
• R: Clockwise rotation (viewed from the shaft end; L: Counterclockwise rotation, optional)
• A: Discharge port position (upward, standard; other positions available on request)
• A: Suction port position (standard configuration)
• 20: Design number, ensuring consistent installation dimensions and performance standards

1.2 Key Specifications

1.3 Additional Notes

• Hydraulic Fluid: Petroleum-based anti-wear hydraulic oil (ISO VG32, 46 or 68) is recommended; Operating temperature range: -10°C to 80°C. Avoid using low-quality hydraulic oil to prevent pump wear.
• Mounting: Both foot and flange mounting are available; Standard port position is upward, other positions (such as horizontal) can be customized on request according to installation space.
• Noise Level: ≤65 dB(A) at rated speed and pressure, suitable for noise-sensitive working environments such as precision machining workshops.
• Maintenance: Regularly check the oil level and oil quality, and replace the hydraulic oil and filter element according to the operating hours to extend the service life of the pump.

2. YUKEN PV2R2 Series Vane Pumps

The PV2R2 series vane pumps are designed for medium to high pressure hydraulic systems, with larger displacement and higher pressure resistance than PV2R1 series. They are characterized by stable performance, long service life and strong adaptability, widely used in plastic machinery, forging equipment, construction machinery and other fields.

2.1 Model Designation

Example: PV2R2-33-L-RAA-20

• PV2R2: Series number, indicating single vane pump with medium-high pressure and medium displacement
• 33: Nominal displacement (cm³/rev), larger than PV2R1 series to meet higher flow demand
• L: Foot mounting (F: Flange mounting, optional)
• R: Clockwise rotation (viewed from the shaft end; L: Counterclockwise rotation, optional)
• A: Discharge port position (upward, standard; custom positions available)
• A: Suction port position (standard configuration)
• 20: Design number, ensuring consistent structural and installation standards

2.2 Key Specifications

2.3 Additional Notes

• Hydraulic Fluid: Recommended petroleum-based anti-wear hydraulic oil (ISO VG32, 46 or 68); The maximum allowable oil temperature is 80°C, and the minimum is -10°C. For harsh working conditions, high-temperature resistant hydraulic oil can be selected.
• Pressure Resistance: The maximum operating pressure is 21 MPa, which can meet the pressure requirements of most medium-high pressure hydraulic systems; Short-term overload pressure (not exceeding 5 minutes) can reach 25 MPa.
• Applications: Suitable for plastic machinery (injection molding machines, blow molding machines), forging equipment (hydraulic presses, bending machines), construction machinery and metallurgical auxiliary equipment.
• Installation: The pump should be installed horizontally, and the shaft coupling should be aligned to avoid eccentricity, which may cause vibration and noise during operation.

3. YUKEN PV2R3 Series Vane Pumps

The PV2R3 series vane pumps are high-displacement, medium-high pressure single vane pumps, designed for large-flow hydraulic systems. They have the advantages of stable operation, low flow pulsation and strong load-bearing capacity, widely used in large-scale plastic machinery, heavy forging equipment and marine hydraulic systems.

3.1 Model Designation

Example: PV2R3-60-L-RAA-20

• PV2R3: Series number, indicating single vane pump with medium-high pressure and large displacement
• 60: Nominal displacement (cm³/rev), larger than PV2R2 series to meet large flow demand
• L: Foot mounting (F: Flange mounting, optional; flange mounting is recommended for large-displacement models)
• R: Clockwise rotation (viewed from the shaft end; L: Counterclockwise rotation, optional)
• A: Discharge port position (upward, standard; side-mounted port available on request)
• A: Suction port position (standard configuration, large-diameter design to reduce suction resistance)
• 20: Design number, ensuring consistent structural strength and installation dimensions

3.2 Key Specifications

3.3 Additional Notes

• Hydraulic Fluid: Petroleum-based anti-wear hydraulic oil (ISO VG46 or 68) is recommended; The viscosity range should be 10-400 mm²/s to ensure stable lubrication and flow performance.
• Flow Characteristics: Low flow pulsation (≤5%), which can effectively reduce the vibration and noise of the hydraulic system, and protect the precision of hydraulic components.
• Structural Features: Adopt reinforced pump body and rotor design, with strong load-bearing capacity and long service life; The vane is made of high-wear-resistant material, which improves the reliability of the pump.
• Maintenance: Regularly check the vane wear and pump body sealing performance; Clean the suction filter regularly to prevent impurities from entering the pump and causing wear.

4. YUKEN PV2R4 Series Vane Pumps

The PV2R4 series vane pumps are ultra-large displacement, medium-high pressure single vane pumps, specially designed for extra-large flow hydraulic systems. They have the characteristics of high efficiency, stable operation and strong adaptability to harsh working conditions, widely used in large-scale hydraulic presses, marine hydraulic systems and heavy machinery.

4.1 Model Designation

Example: PV2R4-136-L-RAA-20

• PV2R4: Series number, indicating single vane pump with medium-high pressure and ultra-large displacement
• 136: Nominal displacement (cm³/rev), the largest displacement in the PV2R series, suitable for extra-large flow demand
• L: Foot mounting (F: Flange mounting, recommended for ultra-large displacement models to ensure installation stability)
• R: Clockwise rotation (viewed from the shaft end; L: Counterclockwise rotation, optional, need to be specified when ordering)
• A: Discharge port position (upward, standard; large-diameter flange port available on request to reduce flow resistance)
• A: Suction port position (standard configuration, double-suction design optional for large flow demand)
• 20: Design number, ensuring consistent structural strength and installation dimensions with other PV2R series

4.2 Key Specifications

4.3 Additional Notes

• Hydraulic Fluid: High-quality petroleum-based anti-wear hydraulic oil (ISO VG68 is recommended); The operating temperature should be controlled between -5°C and 75°C to avoid oil degradation affecting pump performance.
• Shaft Speed: The maximum shaft speed is 1500 r/min, which is lower than other PV2R series, to ensure stable operation under large displacement and reduce wear.
• Installation Requirements: The pump should be installed on a stable base, and the foundation should have sufficient rigidity to absorb vibration; The pipeline connection should be firm, and the suction pipeline should be as short as possible to reduce suction resistance.
• Application Scope: Suitable for ultra-large flow hydraulic systems, such as large hydraulic presses, marine hydraulic propulsion systems, large-scale mining machinery and metallurgical equipment.
• Maintenance: Regularly check the oil pressure and flow, and replace the vane and seal ring according to the operating hours; It is recommended to install a pressure relief valve in the system to prevent overpressure damage to the pump.