V20-1P11P-1D11

The V20-1P11P-1D11 is produced by Vickers for the Vane Pumps series, where it supplies hydraulic flow in mobile or industrial automation. It displaces 36.4 cm³ per revolution (2.22 in³/rev), defining the volume transferred each shaft turn for predictable output. At maximum speed it delivers 86.8 L/min (22.9 US gpm), allowing circuits with moderate demand to receive adequate oil volume. A pressure rating of 172 bar (2500 psi) permits use in systems that require high operating pressure without overstressing internal parts. Clockwise shaft rotation aligns the drive with common engine and motor orientations. The unit mounts on a 2-bolt SAE A flange, enabling direct coupling to standard power take-offs. Under full flow and pressure the input requirement is 28 kW (37.5 hp), so motor sizing and energy consumption can be calculated accurately.

During low-speed operation the pump supplies 11 US gpm at 1200 rpm and 7 bar, providing steady lubrication or pilot pressure when full capacity is unnecessary. A 1.25-inch NPT inlet offers ample suction area to minimise velocity and prevent cavitation, whereas a 0.75-inch NPT outlet matches downstream line sizes for balanced velocity and pressure drop. The outlet is positioned 90 degrees clockwise from the inlet, simplifying hose routing in compact power packs by separating suction and pressure ports on adjacent faces. Sealing is handled by a single-lip arrangement with sealed bearings, blocking external leakage and protecting the shaft journal from contamination. These connection, orientation, and sealing details help designers integrate the unit quickly and maintain reliable hydraulic automation over long service periods.