Parameter Specification for Vickers Vane Pump V20-1P12P-1A20

1. General Information

2. Core Performance Parameters

• Displacement: 2.38 cu in/rev (approximately 39 cc/rev), corresponding to the 12 series displacement code of the V20 series.
• Rated Pressure: 2200 psi (151.7 bar), suitable for medium-pressure industrial and mobile hydraulic systems.
• Maximum Pressure: 2500 psi (172 bar), the maximum transient pressure that the pump can withstand under normal working conditions.
• Rated Speed: 1800 rpm, with a rated flow rate of 18 GPM (gallons per minute) at this speed.
• Maximum Speed: 2400 rpm, ensuring stable operation without damage to internal components.
• Volumetric Efficiency: ≥ 94% under rated conditions, reflecting excellent oil delivery performance and low internal leakage.

3. Structural and Installation Parameters

• Shaft Type: 11-tooth splined short shaft, ensuring reliable power transmission and easy connection with the drive device.
• Rotation Direction: Clockwise (CW) when viewed from the shaft end; can be adjusted to counterclockwise (CCW) by changing the assembly of internal parts if needed.
• Mounting Type: SAE 2-bolt flange mount (standard), with optional foot-mounting brackets for flexible installation in different equipment layouts.
• Port Specification: 1-1/4″ NPT suction port and 3/4″ NPT pressure port, ensuring efficient oil suction and delivery, and compatible with standard hydraulic pipelines.
• Seal Material: Buna-N, providing good sealing performance and compatibility with common hydraulic fluids.
• Weight: 7.3 – 8.2 kg (16 – 18 lb), compact and lightweight, suitable for applications with limited installation space.

4. Working Conditions

• Hydraulic Fluid: Suitable for petroleum-based hydraulic oil or synthetic fire-resistant fluids, ensuring stable operation and extending the service life of internal components.
• Fluid Viscosity: 32 cst at 38 °C (150 sus at 100 °F), the optimal viscosity range for pump operation.
• Operating Temperature Range: -20 °C to 80 °C (-4 °F to 176 °F), adapting to most industrial and mobile working environments.
• Ambient Temperature Range: -10 °C to 50 °C (14 °F to 122 °F), avoiding extreme temperature conditions that may affect pump performance.

5. Application Scope

6. Features and Advantages

• Balanced pressure design: Internal inlet and outlet pressure chambers are diametrically opposed, balancing pressure-induced radial loads and extending bearing life.
• High performance: Low vane tip/ring loading allows high-pressure operation, and optimized inlet flow paths ensure uniform oil acceleration and good filling characteristics, especially at low inlet pressures.
• Long service life: Superior structural design and high-quality materials ensure stable operation in harsh working environments, with a service life of more than 5000 hours.
• Versatility: Compatible with various hydraulic fluids and adaptable to a wide range of working conditions, meeting the needs of different hydraulic circuits.