YUKEN hydraulic pump PV2R2、PV2R3、PV2R4
YUKEN PV2R series vane pumps are renowned for their high pressure, high efficiency, and low-noise performance, and the PV2R2, PV2R3, and PV2R4 models are medium to large-displacement variants designed to cater to heavy-duty industrial applications. These pumps are widely used in large-scale injection moulding machines, hydraulic forging presses, construction machinery, and other equipment that demands stable hydraulic fluid supply, high load-bearing capacity, and long-term reliable operation under high-pressure conditions.
Consistent with the core design of the PV2R series, the PV2R2, PV2R3, and PV2R4 pumps feature integral driving components integrated into a cartridge kit. This cartridge structure enables quick and easy replacement of worn parts without full disassembly of the pump, effectively reducing equipment downtime and maintenance costs. Moreover, the optimized vane, cam ring, and bearing design enhances wear resistance and sealing performance, ensuring stable operation even in harsh working environments with continuous high-load operation.
Technical Specifications of YUKEN PV2R2, PV2R3, PV2R4
| Parameter | YUKEN Vane Pump PV2R2 | YUKEN Vane Pump PV2R3 | YUKEN Vane Pump PV2R4 |
| Geometric Displacement Range | 14.5–25.0 cm³/rev (0.885–1.526 cu.in/rev) | 28.0–41.0 cm³/rev (1.708–2.502 cu.in/rev) | 47.0–66.0 cm³/rev (2.870–4.028 cu.in/rev) |
| Maximum Operating Pressure (for anti-wear petroleum base oils) | 21 MPa (3050 psi) | 21 MPa (3050 psi) | 21 MPa (3050 psi) |
| Maximum Operating Pressure (for R&O petroleum base oils) | 21 MPa (3050 psi) | 21 MPa (3050 psi) | 21 MPa (3050 psi) |
| Maximum Operating Pressure (for water-containing fluids and phosphate ester synthetic fluids) | 16 MPa (2320 psi) (with special Viton seals) | 16 MPa (2320 psi) (with special Viton seals) | 16 MPa (2320 psi) (with special Viton seals) |
| Minimum Operating Pressure (for water-containing and synthetic fluids) | 7 MPa (1020 psi) | 7 MPa (1020 psi) | 7 MPa (1020 psi) |
| Shaft Speed Range | 600 to 1800 rpm (minimum 1000 rpm under high-pressure conditions) | 600 to 1800 rpm (minimum 1000 rpm under high-pressure conditions) | 600 to 1500 rpm (minimum 1000 rpm under high-pressure conditions) |
| Mounting Type | Foot mounting (L) or flange mounting (F) (foot mounting as standard) | Foot mounting (L) or flange mounting (F) (foot mounting as standard) | Foot mounting (L) or flange mounting (F) (foot mounting as standard) |
| Shaft Rotation Direction | Clockwise (R) when viewed from the shaft end (standard); counterclockwise rotation available on request | Clockwise (R) when viewed from the shaft end (standard); counterclockwise rotation available on request | Clockwise (R) when viewed from the shaft end (standard); counterclockwise rotation available on request |
Additional Information
YUKEN PV2R2, PV2R3, and PV2R4 vane pumps are compatible with a variety of hydraulic fluids, including anti-wear petroleum base oils (for maximum 21 MPa pressure), R&O petroleum base oils, water-containing fluids (water-in-oil emulsions, water glycols), and phosphate ester-based synthetic fluids. When using phosphate ester fluids, special Viton seals are required, and the model number should be prefixed with “F” when ordering.
The flow rate and power consumption of the pumps vary with shaft speed and operating pressure; detailed data can be found in YUKEN’s official technical documentation (relevant sections for the PV2R series). The weight of the pumps varies by model: approximately 12.5–15.0 kg for PV2R2, 16.0–18.5 kg for PV2R3, and 20.0–23.5 kg for PV2R4, depending on the mounting type and specific configuration.
To ensure reliable and long-term operation, it is crucial to comply with the suction conditions: the suction pressure should be in the range of -20 to +30 kPa (5.9 inches of mercury vacuum to +4.3 PSIG). The maximum allowable shaft runout must not exceed 0.1 mm TIR, and the angular misalignment must not exceed 0.2°. Regular maintenance and inspection of the cartridge components are also recommended to extend the pump’s service life.
For more information on spare parts, warranty terms, and maintenance guidelines, please contact an official YUKEN representative or refer to the complete technical specification for the PV2R series.
