3520V25A8 86AC22 LH

The 3520V25A8 86AC22 LH is a vane pump produced by Vickers within the Vane Pumps series. It supplies hydraulic power by converting rotary motion into pressurized fluid flow for mobile and industrial automation circuits. With a shaft end displacement of 81.6 cm³/rev (4.98 in³/rev), the pump delivers high volume per revolution where large actuator movement is required. At 1200 rpm the shaft end generates 25 USgpm to support continuous-duty systems such as molding presses or conveyors. The cover end displacement is lower at 27.4 cm³/rev (1.67 in³/rev), providing a secondary flow path for pilot or auxiliary functions, and this side yields 8 USgpm at the same reference speed. Both the cover end and shaft end withstand a maximum pressure of 210 bar (3000 psi) so the unit can sustain typical industrial line pressures without external intensifiers. Fluid ports follow the SAE 4-bolt flange standard on every connection to simplify installation with common manifolds, and the specified left-hand (CCW) rotation matches engines or electric motors that turn counter-clockwise.

The pump operates safely at up to 2500 rpm on both the cover and shaft ends, allowing output to scale linearly with prime mover speed for variable displacement control strategies. Outlet 1 is located opposite the inlet, which simplifies straight-through plumbing on the main circuit, while Outlet 2 sits 45° clockwise from the inlet to facilitate compact routing of the auxiliary line. The major diameter of the drive shaft measures 34.90 mm (1.374 in), providing a robust interface with keyed or splined couplings that transmit torque without slipping. These geometric and performance characteristics let designers combine high flow delivery and precise pilot control inside one compact housing, and the low pulsation nature of vane technology helps maintain consistent actuator movement across both circuits.