Vickers 20V Vane Pump | 20V-12A-1C-22R | 20V-14A-1C-22R | Fixed Displacement

The 20V Series fixed displacement vane pumps from Chengyuan Hydraulic are high-efficiency power components fully compatible with Vickers industrial standards. Known for their “intra-vane” design, these pumps excel in operational smoothness and low fluid pulsation. For core models like 20V-12A-1C-22R and 20V-14A-1C-22R, we utilize reinforced alloy steel cam rings. Every pump undergoes 100% simulated full-load testing before delivery to ensure volumetric efficiency remains above 90% at rated pressure, guaranteeing 100% original-place interchangeability.

Technical Specifications :

• Series Model: 20V Series (Fixed Displacement Vane Pump)

• Displacement Codes (cm³/rev): 10 (33), 11 (36), 12 (40), 14 (45)

• Max Operating Pressure: 172 bar (2500 psi)

• Max Rated Speed: 1800 rpm

• Mounting: SAE A Standard 2-bolt Flange

• Shaft Options: 1 (Standard Straight Keyed) / 11 (Spline optional)

• Port Position: C (Inlet/Outlet 180° opposed) / A, B, D options available

• Rotation: 22R (Right Hand/CW, viewed from shaft end)

• Design Series: Compatible with 22 Series

Key Technical Advantages:

• Cartridge Kit Design: The standout feature of the 20V series is its rapid-change cartridge. Maintenance can be performed without removing the pump from the machine, significantly reducing downtime and service costs for the end-user.

• Radially Balanced Construction: The dual-lobe cam ring design ensures that radial hydraulic forces on the rotor are balanced. This extends bearing life and provides high reliability during continuous high-pressure operations.

• Ultra-Quiet Operation: Featuring a 12-vane rotor and micro-precision cam ring profiling, the 20V pump operates at noise levels significantly lower than gear or piston pumps. It is ideal for indoor automation and machine tool power units.

• Thermal Stability: Bi-metal flexible side plates maintain consistent end clearances across a wide temperature range, minimizing internal leakage and ensuring stable flow output even as oil viscosity changes.

Application Areas:

• Injection Molding: Mold opening/closing and hydraulic ejection systems.

• Machine Tools: Power units for automated lathes, drilling, and grinding machines.

• Die Casting: Lubrication systems, cooling cycles, and low-pressure control circuits.

Expert Maintenance Tips:

• Startup Priming: Ensure the pump housing is filled with oil before the first start. Use short “jog-starts” while allowing air to bleed from the outlet side to ensure vanes extend properly against the cam ring.

• Oil Viscosity Guidelines: For optimal life, use ISO Grade 32 or 46 anti-wear hydraulic oil, maintaining an operating temperature between 30°C and 50°C.

• Inlet Filtration Standards: Do not use fine filters on the inlet port (100-mesh suction strainer only) to prevent cavitation. High-precision filtration should be installed in the return line.