Vickers | V20-1P9S-1A11
V20 1P9S 1A11
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The V20 1P9S 1A11 pump is part of the Square Vane Pumps series from Vickers. It supplies hydraulic fluid to actuators in automated machinery. Its displacement is 29.7 cm³ per revolution, allowing the unit to move 9 US gallons per minute at 1200 rpm and 100 psi, so circuit designers can predict flow at common operating points. A clockwise shaft rotation, observed from the shaft end, matches engines or electric motors that turn in the same direction. The pump tolerates speeds up to 2800 rpm, giving flexibility for variable-speed drives. Installation is completed through an SAE A two-bolt flange, and the inlet line attaches with a 1.25-inch NPT thread positioned on the cover side for straightforward piping.
For pressure demands, the pump handles 172 bar (2500 psi) so it can serve medium-pressure circuits without overstress. A sealed bearing arrangement keeps lubricant inside and contaminants out, extending service intervals. The shaft uses a single lip seal to prevent external leakage at the drive interface. A standard cover encloses internal components, maintaining interchangeability with other V20 frames. Fluid leaves the housing through an outlet threaded 1.062-12 UN-2B that sits opposite the inlet port, an orientation that simplifies hose routing in compact manifolds. This arrangement also helps maintain uniform wall thickness and reduces cross-port stress during cyclic loading, ensuring consistent performance over long duty cycles.
Technical Specifications
Bearing Type
Sealed
Cover Type
Standard
Displacement
29.7 cm3/rev (1.81 in3/rev)
Inlet Port Thread
1.25 in NPT
Max Operating Pressure
172 bar (2500 psi)
Max Speed
2800 rpm
Mounting Interface
SAE A 2-bolt flange
Outlet Port Orientation
Opposite to inlet port
Outlet Port Thread
1.062-12 UN-2B
Rated Capacity (1200 Rpm, 100 Psi)
9 US gpm
Shaft Rotation
Clockwise (viewed from shaft end)
Shaft Seal
Single lip
1620 Old Apex Road
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