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The V10 1S5S 1A20 LH hydraulic unit belongs to the Square Vane Pumps series manufactured by Vickers and is intended to supply controlled flow in automated hydraulic circuits. It moves 16.4 cm³ of fluid per revolution (1.00 in³/rev), fixing the volumetric output for a given speed. Continuous operation is permitted up to 172 bar (2500 psi), while inlet conditions must stay below 0.7 bar (10 psi) or 5 in Hg vacuum to avoid cavitation. The rotor ring supports 5 US gpm, matching moderate-duty machine requirements. Counter-clockwise rotation when viewed from the shaft end aligns with left-hand drive layouts, and an SAE A two-bolt flange simplifies attachment to standard prime movers.
Fluid enters through a 1-5/16-12 straight-thread port and leaves through a 3/4-16 straight-thread port positioned opposite the inlet so hoses can be routed cleanly on compact panels. The internal pumping element is a vane design that delivers steady flow with low pulsation. A 0.75 in shaft major diameter mates with small power take-offs, and the shaft extends 1.75 in beyond the housing to accommodate flexible couplings. A 3/16 in keyed connection prevents slip under load, completing the mechanical interface required for reliable service in automated hydraulic systems.
Displacement
16.4 cm3/rev (1.00 in3/rev)
Inlet Port Thread
1-5/16-12 Straight Thread
Max Inlet Pressure
0.7 bar (10 psi)
Max Inlet Vacuum
5 in Hg
Max Operating Pressure
172 bar (2500 psi)
Mounting Type
SAE A 2-Bolt Flange
Outlet Port Orientation
Opposite To Inlet
Outlet Port Thread
3/4-16 Straight Thread
Pump Type
Vane Pump
Ring Capacity
5 US gpm
Rotation
CCW (viewed from shaft end)
Shaft Extension Length
1.75 in
Shaft Key Size
3/16 in
Shaft Major Diameter
0.75 in
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