V20-1P13P-1C11 Vickers Vane Pump | 13 GPM 175 Bar

Product Overview

Engineered for reliable performance in low-to-medium pressure mobile and industrial systems, the V20-1P13P-1C11 fixed displacement vane pump (representing the versatile V10 and V20 series, including variants like V20-1P8P and V20P-1B11T) incorporates Eaton Vickers’ classic hydraulically balanced design. Internal diametrically opposed inlet and outlet pressure chambers completely cancel out radial loads on the rotor, drastically extending the life of the main shaft and bearings. Prior to dispatch, every unit is subjected to rigorous 100% full-load simulated testing for pressure hold, flow consistency, and thermal stability to ensure zero internal leakage and maximum volumetric efficiency. Manufactured strictly to standard SAE mounting and porting dimensions, this pump delivers true drop-in interchangeability with original Vickers V20 units, making it a highly cost-effective replacement for power steering loops and industrial auxiliary power units.

Technical Specifications

• Model Code: V20-1P13P-1C11 (Fully compatible with V10 and V20 series sizes and port configurations)

• Pump Type: Hydraulically balanced fixed-displacement vane pump

• Displacement: 42.4 cm³/rev (Equivalent to standard 13 US GPM ring size)

• Max Working Pressure: 17.5 MPa (175 bar / 2500 psi)

• Max Speed: 2400 RPM (Under standard atmospheric inlet conditions)

• Control Type: Fixed displacement

• Drive Shaft: Type 1 standard straight cylindrical shaft (with parallel key, 19.05 mm diameter)

• Mounting Flange: SAE A 2-bolt standard flange

• Port Configuration: Type P NPT threads (1-1/4″ NPT inlet, 3/4″ NPT outlet), ‘C’ position denotes 90° orientation between ports

• Direction of Rotation: Clockwise (Viewed from shaft end, standard right-hand)

• Approximate Weight: 7.3 kg

Key Technical Advantages

• Hydraulically Balanced Architecture: The patented diametrically opposed pressure chambers completely neutralize radial hydraulic forces on the rotor. This zero-radial-load state on the bearings prevents premature wear and ensures continuous duty reliability.

• Modular Cartridge Construction: The rotor, stator, vanes, and pressure plates are integrated into a single replaceable cartridge kit. Maintenance personnel can easily swap out the internal mechanism in minutes without disconnecting the main housing from hydraulic lines, drastically cutting downtime.

• True OEM Interchangeability: Machined to precise original factory tolerances, the pilot diameters, flange bolt patterns, and internal components are 100% interchangeable with existing Vickers V20 installations.

• Compact & Quiet Operation: A 12-vane rotor design paired with precision-machined metering notches eliminates high-frequency pressure pulsations. The rigid cast-iron housing further dampens operational noise and vibration.

Application Areas

• Mobile & Earthmoving Machinery: Power steering circuits and pilot control mechanisms for heavy trucks, wheel loaders, and forklifts.

• Material Handling Equipment: Hydraulic power units for aerial lift platforms, tail lifts, and heavy-duty automated guided vehicles (AGVs).

• Industrial Machinery: Auxiliary power circuits for light hydraulic balers, drilling rigs, and injection molding machinery.

• Agricultural Equipment: Implement and auxiliary hydraulic pumps for large tractors and combine harvesters.

Expert Maintenance Tips

• Initial Priming Protocol: Before the first start-up, you must prime the pump by filling the casing completely with clean hydraulic fluid and bleeding all air from the delivery line. Jogging the motor in a dry state will cause immediate and irreversible friction damage to the cam ring and vane tips.

• Shaft Alignment Precision: Always connect the prime mover via a flexible coupling. Ensure that the concentricity alignment (TIR) between the motor and pump shafts is within 0.1 mm. The standard V20 shaft is not designed to support external radial or axial loads from direct-mounted pulleys or gears.

• Strict Contamination Control: To prevent internal scoring and maintain volumetric efficiency, utilize adequate return-line filtration. Fluid cleanliness must be maintained at ISO 4406 19/17/14 or better, as dirty fluid will cause the vanes to stick within the rotor slots.