Vickers | V20-1P8P-1A11-LH
V20 1P8P 1A11 LH
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The V20 1P8P 1A11 LH model is produced by Vickers within the Square Vane Pumps series and supplies pressurized oil for hydraulic automation circuits. Its vane design delivers smooth flow with low pulsation, supporting accurate actuator control. A displacement of 26.6 cm³ per revolution (1.62 in³/rev) defines the fluid volume moved each shaft turn, while a rated flow of 8 US gpm supports medium-power machinery. The unit withstands a maximum operating pressure of 172 bar (2500 psi) so it can serve systems that require moderate working pressures. Counter-clockwise shaft rotation viewed from the drive end matches engines or motors that spin in that direction. The inlet permits up to 0.7 bar (10 psi) positive pressure to avoid cavitation and tolerates vacuum levels to 5 in Hg for self-priming when the reservoir is below the pump.
A 1.25 in NPT inlet port accepts common suction fittings, and a 0.75 in NPT outlet port connects to the pressure line; the ports are located on opposite sides to simplify hose routing in tight power units. Installation uses a two-bolt SAE A flange with mounting holes of 11.1 mm (0.437 in) diameter, allowing rapid interchange with pumps of the same frame size. A sealed bearing keeps grease contained and shields the rolling elements from hydraulic fluid, extending bearing life under continuous duty. A single-lip shaft seal prevents oil leakage along the drive shaft and keeps dirt out of the housing.
Technical Specifications
Bearing Type
Sealed
Displacement
26.6 cm3/rev (1.62 in3/rev)
Inlet Port
1.25 in NPT
Max Inlet Positive Pressure
0.7 bar (10 psi)
Max Inlet Vacuum
5 in Hg
Max Operating Pressure
172 bar (2500 psi)
Mounting Hole Diameter
11.1 mm (0.437 in)
Mounting Type
2-Bolt Flange (SAE A)
Outlet Port
0.75 in NPT
Port Orientation
Opposite To Inlet Port
Pump Type
Vane
Rated Flow
8 US gpm
Seal Type
Single-Lip
Shaft Rotation
CCW (Viewed From Shaft End)
1620 Old Apex Road
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