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The 4535VQ60A38 1AA20 pump is part of the VQ Thru-Drive Vane Pumps series from Vickers and serves as a hydraulic power source in automated circuits. It turns in right-hand (clockwise) rotation and connects through SAE four-bolt flanges on every port to simplify installation. On the cover end, the pump displaces 121.6 cm³ per revolution, delivers a SAE rated flow of 38 gpm, and withstands a maximum pressure of 210 bar (3000 psi). The allowable speed on this end reaches 2200 r/min, enabling high-speed drive arrangements without exceeding mechanical limits.
The shaft end increases output with a displacement of 193.4 cm³ per revolution and supplies up to 60 gpm at its SAE rating. It tolerates a maximum pressure of 175 bar (2500 psi) while matching the cover-end speed ceiling of 2200 r/min for balanced performance. System inlet conditions must stay below 1.4 bar (20 psi) positive pressure and above a vacuum of 5 in Hg to prevent seal damage and cavitation. Two outlet port orientations, marked O1 opposite and O2 opposite, provide flexibility when routing lines inside machinery.
Cover-end Displacement
121.6 cm3/r
Cover-end Max Pressure
210 bar (3000 psi)
Cover-end Max Speed
2200 r/min
Cover-end Sae Rating
38 gpm
Inlet Positive Pressure Limit
1.4 bar (20 psi)
Inlet Vacuum Limit
5 in Hg
Outlet Positions
O1 Opposite, O2 Opposite
Port Connections
SAE 4-bolt flange (all ports)
Rotation
Right-Hand (CW)
Shaft-end Displacement
193.4 cm3/r
Shaft-end Max Pressure
175 bar (2500 psi)
Shaft-end Max Speed
2200 r/min
Shaft-end Sae Rating
60 gpm
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