Vickers | 4525V42A21-1AA22R
4525V42A21 1AA22R
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The 4525V42A21 1AA22R is produced by Vickers within the V Series Vane Pumps series and supplies hydraulic flow for automated machinery. The unit turns clockwise from the shaft end, a requirement for correct drive alignment. Outlet 1 displaces 138 cm³ per revolution and yields 42 gpm at 1200 rpm, covering the main circuit demand. Outlet 2 displaces 67 cm³ per revolution and produces 21 gpm at the same speed to serve auxiliary functions. A maximum operating pressure of 172 bar enables medium-pressure actuation without overstressing internal components. Flange mounting with SAE four-bolt ports forms a rigid, leak-resistant interface to the system piping.
The assembly operates up to 1800 rpm to meet peak demand and can slow to 600 rpm for low-speed cycles without stalling. It accepts inlet pressures as high as 1.4 bar to prevent cavitation and copes with suction down to −0.17 bar when fluid must be lifted. A rotor moment of inertia of 0.003732 N·m·s² limits start-up current in the driving motor. Outlet 1 faces opposite the inlet and Outlet 2 is located 135° counter-clockwise, which aids compact hose routing in crowded power units. Inch-threaded connections allow direct use of standard North American adapters. The housing weight of 46.0 kg guides selection of lifting equipment and support brackets during installation.
Technical Specifications
Approximate Weight
46.0 kg (101 lb)
Displacement Outlet 1
138 cm3/r (8.41 in3/r)
Displacement Outlet 2
67 cm3/r (4.13 in3/r)
Max Inlet Pressure
1.4 bar (20 psi)
Max Pressure
172 bar (2500 psi)
Max Speed
1800 rpm
Min Inlet Pressure
-0.17 bar (5 inHg)
Minimum Speed
600 rpm
Moment Of Inertia
0.003732 N·m·s^2
Mounting
Flange Mount
Outlet Orientation
O1 Opposite; O2 135° CCW
Port Connections
SAE 4-bolt flange
Port Thread Type
Inch thread
Rated Flow Outlet 1
42 gpm (1200 rpm)
Rated Flow Outlet 2
21 gpm (1200 rpm)
Rotation
Clockwise (from shaft end)
1620 Old Apex Road
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