4520VQH60A586AB20

The 4520VQH60A586AB20 pump belongs to the Vane Pumps series and is produced by Vickers. It is intended to supply pressurized fluid in hydraulic automation systems where dual flow paths are required. The unit turns in a right-hand clockwise direction. A shaft-end displacement of 193.4 cm³ per revolution (11.80 in³ per revolution) generates the primary volume, and that section delivers 60 gpm at 1200 rpm with a system back pressure of 100 psi. The integrated cover pump adds 18.0 cm³ per revolution (1.10 in³ per revolution) so auxiliary circuits can be fed without an external device. Fluid exits from ports identified as position AB, with outlet O1 opposite the inlet and outlet O2 set 45° counter-clockwise. All inlet and outlet ports use an SAE four-bolt flange interface for straightforward connection to standard manifolds.

The cover stage supplies 5 gpm at 1200 rpm under a 100 psi load, providing steady pilot or lubrication flow alongside the main delivery. The pump tolerates inlet pressures up to 1.38 bar (20 psi) and can draw fluid under a vacuum of 5 in Hg, a range that supports installations where the reservoir sits below the pump centerline. Power is transmitted through a 3/8-inch square shaft key that locks the pump to the drive shaft and maintains torsional alignment. These hydraulic and mechanical limits enable stable dual-flow performance in automated hydraulic equipment.