Vickers | V20-1P8P-1C11
V20 1P8P 1C11
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The V20 1P8P 1C11 pump belongs to the Square Vane Pumps series manufactured by Vickers for fixed-displacement hydraulic automation. A displacement of 26.6 cm³ per revolution sets the volumetric output per shaft turn, while a rated capacity of 8 US gpm at 1200 rpm and 100 psi defines baseline flow in low-pressure test conditions. The unit tolerates a maximum operating pressure of 172 bar (2500 psi), making it suitable for medium-pressure circuits that drive cylinders or motors. A top speed limit of 2800 rpm permits coupling to high-speed electric or diesel prime movers without risk of overspeed. Clockwise rotation viewed from the shaft end matches common engine layouts. The 2-bolt SAE A flange provides straightforward face mounting, and a single-lip shaft seal with a sealed bearing keeps oil inside the case and contaminants out.
A 1.25 in NPT inlet port allows connection to standard suction hose, and the inlet path must remain below 0.7 bar (10 psi) to avoid over-pressurizing the pump body. The allowable inlet vacuum of 5 in Hg limits vertical lift so fluid remains fully flooded at the eye of the vanes. Vickers orients the pressure ports inline with the inlet at Position C, simplifying manifold layouts in compact power units. The primary outlet uses a .750-16 UNF-2B SAE ORB thread to deliver pressurized flow to downstream valves, while a .875-14 UNF-2B SAE ORB secondary outlet supports auxiliary circuits such as pilot supply or pressure sampling. A .750-16 UNF-2B SAE ORB tank port routes internal leakage back to reservoir, preventing case pressure build-up and extending seal life.
Technical Specifications
Displacement
26.6 cm3/rev (1.62 in3/rev)
Inlet Port
1.25 in NPT
Inlet Vacuum Limit
5 in Hg
Max Inlet Pressure
0.7 bar (10 psi)
Max Operating Pressure
172 bar (2500 psi)
Max Speed
2800 rpm
Mounting Type
2-Bolt Flange (SAE A)
Port Orientation
Inline With Inlet Port (Position C)
Primary Outlet Port
.750-16 UNF-2B (SAE ORB)
Rated Capacity
8 US gpm @ 1200 rpm (100 psi)
Secondary Outlet Port
.875-14 UNF-2B (SAE ORB)
Shaft Rotation
Clockwise (shaft end view)
Shaft Seal
Single Lip Seal & Sealed Bearing
Tank Port
.750-16 UNF-2B (SAE ORB)
1620 Old Apex Road
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