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The 2520V21A5 1AA22R pump is produced by Vickers within the V Series Vane Pumps series to supply pressurized oil for hydraulic automation circuits. It uses a vane pump design that keeps pressure ripple low during continuous duty. The unit mounts by a flange for easy alignment with motor adapters. Viewed from the shaft end, rotation is clockwise, defining the coupling arrangement. The shaft end displaces 67 cm³ each revolution and delivers 21 gpm at 1200 rpm and 100 psi, serving actuators with moderate volume demand. This section tolerates 172 bar, supporting systems that need elevated but not extreme working pressure. Maximum speed is 1800 rpm, which lets designers pair it with fast electric motors. The housing weighs 20.5 kg, a figure that guides bracket selection and handling during service.
The cover end displaces 18 cm³ per revolution and supplies 5 gpm at 1200 rpm and 100 psi, making it suitable for pilot or lubrication branches that need modest flow. This section withstands 207 bar, enabling it to feed loads that require higher working pressure than the shaft end. Piping is guided by the port layout: the first outlet is opposite the inlet, and the second sits 135° counter-clockwise from the inlet, so hoses can be routed without sharp bends. Inch-threaded ports accept widely used imperial fittings, reducing adapter count in North American installations.
Approximate Weight
20.5 kg (45 lb)
Cover End Displacement
18 cm3/rev (1.1 in3/rev)
Cover End Rated Flow
5 gpm (1200 rpm, 100 psi)
Max Pressure (cover End)
207 bar (3000 psi)
Max Pressure (shaft End)
172 bar (2500 psi)
Max Speed
1800 rpm
Mounting
Flange Mount
Outlet 1 Position
Opposite Inlet
Outlet 2 Position
135° CCW From Inlet
Port Thread
Inch
Pump Type
Vane Pump
Rotation (from Shaft End)
Clockwise
Shaft End Displacement
67 cm3/rev (4.1 in3/rev)
Shaft End Rated Flow
21 gpm (1200 rpm, 100 psi)
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