PSV-PNSF-25ERM-56

The PSV-PNSF-25ERM-56 variable volume vane pump is manufactured by Bosch Rexroth for the PSV Variable Vane Pumps series and is intended to regulate hydraulic power in automated machinery. A pressure compensator adjusts displacement so outlet pressure remains at 1000 psi when loads fluctuate, preventing excess energy use. At 1800 rpm the unit supplies 20.2 gpm, providing a steady source of oil for cylinders and motors. Subplate mounting lets technicians replace or service the pump without disconnecting hard piping, minimizing downtime. By varying vane displacement, the pump limits input torque when flow demand drops and helps conserve drive energy.

The shaft is configured for right-hand rotation, aligning with clockwise electric motors common in industrial skids. Viton seals tolerate elevated temperatures and many synthetic hydraulic fluids, maintaining leak-free operation in harsh environments. The pump is supplied without volume control accessories, so flow is managed exclusively through the pressure compensator, reducing circuit complexity. These design choices support reliable service where compact size, straightforward maintenance, and consistent pressure control are required.