PSV-JSSF-20HRM-56

The PSV-JSSF-20HRM-56 pump is produced by Bosch Rexroth within the PSV Variable Vane Pumps series and supplies adjustable hydraulic flow for automated machinery. It relies on a variable volume vane design that varies displacement as load changes. At 1800 rpm the pump delivers 15.2 gallons per minute, providing moderate capacity for workholding or clamping circuits. A continuous pressure limit of 2000 psi lets it drive cylinders and motors without overstressing internal parts. Right-hand rotation matches standard electric motor drives, and hydraulic two-pressure control shifts the outlet between two preset pressure levels so the system only draws the energy required.

A two-stage compensator adjusts vane position to keep outlet pressure steady when demand fluctuates. Subplate mounting lets technicians detach the pump from a manifold block without disconnecting external piping, shortening service time. Viton seals withstand hot petroleum-based or synthetic oils, extending service life in continuous-duty lines. Flow can be trimmed with a screw-type volume control, allowing precise tuning after installation. These features support reliable pressure and flow regulation in machine tools, presses, and other automated hydraulic equipment.