Vickers | V10F-1P4P-11A4E-20-LH
V10F 1P4P 11A4E 20 LH
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The V10F 1P4P 11A4E 20 LH vane pump belongs to the Square Vane Pumps series and is produced by Vickers for fixed-displacement hydraulic circuits. It delivers a displacement of 13.1 cm3/rev (0.80 in3/rev), so each shaft rotation transfers a consistent fluid volume for predictable actuator movement. The pump is built to design number 20, identifying the internal component revision used across the series. At 1200 rpm it provides a rated capacity of 4 US gpm, supporting modest flow requirements in machine tools or auxiliary systems, and it can run up to 3400 rpm when the prime mover permits. A left-hand rotation, defined as counter-clockwise when viewed from the shaft end, matches engines or motors that turn in that direction. Installation uses a 2-bolt flange that follows the SAE A format, and the outlet port faces opposite the inlet to arrange hoses on parallel planes and reduce crossover in compact manifolds.
The inlet connection is a 1-inch NPT thread, providing compatibility with standard schedule 40 pipe and suction hose fittings. Suction conditions are restricted to a positive pressure of 0.7 bar (10 psi) or less and a vacuum not exceeding 5 inHg to prevent cavitation at high speed. The pump withstands a maximum operating pressure of 172 bar (2500 psi) for medium-pressure mobile and industrial equipment, while an internal relief valve is preset to 86 bar (1250 psi) to safeguard downstream components during load transients. The integral flow-control and relief valve option stabilizes circuit flow and limits pressure without external valves, saving manifold space. When the optional orifice 4 passage is selected, a controlled bypass flow of 15 L/min (4 US gpm) can be diverted for auxiliary cooling or pilot circuits. These limits and integrated functions help maintain reliable service under varying temperature and load conditions.
Technical Specifications
Controlled Flow (orifice 4)
15 L/min (4 USgpm)
Design Number
20
Displacement
13.1 cm3/rev (0.80 in3/rev)
Inlet Port
1 in NPT
Inlet Positive Pressure Limit
0.7 bar (10 psi)
Inlet Vacuum Limit
5 inHg
Integral Valve Option
Flow Control & Relief
Max Operating Pressure
172 bar (2500 psi)
Max Speed
3400 rpm
Mounting
2-Bolt Flange
Mounting Flange
SAE A
Outlet Port Orientation
Opposite Inlet (A)
Rated Capacity (sae)
4 USgpm @ 1200 rpm
Relief Valve Setting
86 bar (1250 psi)
Rotation
Left-Hand (CCW at shaft end)
1620 Old Apex Road
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