PSV-PNSF-20HRM-56

The PSV-PNSF-20HRM-56 pump belongs to the PSV Variable Vane Pumps series and is built by Bosch Rexroth for hydraulic automation circuits that must balance efficiency with stable pressure. This unit is a variable volume vane design, so displacement adapts to load rather than running at a fixed output. A pressure compensator regulates delivery, keeping system pressure close to the 2000 PSI rating while throttling flow when demand falls. At a drive speed of 1800 rpm the pump supplies 15.2 GPM, providing adequate oil for mid-capacity cylinders and motors. Subplate mounting allows the housing to fasten directly to a manifold block, reducing pipe runs and streamlining maintenance.

Right-hand rotation aligns with standard motor couplings and prevents reversal of internal vanes during start-up. Viton seals are installed to tolerate high temperatures and petroleum-based fluids, extending service intervals in continuous duty service. The pump contains no external volume control, so the internal compensator alone sets displacement and removes the need for manual adjustment in the field. These characteristics permit consistent pressure delivery in automated presses, material handlers, and other installations that rely on dependable yet adaptable hydraulic power.