PSV-PNSF-15ERM-56

The PSV-PNSF-15ERM-56 pump belongs to the PSV Variable Vane Pumps series and is manufactured by Bosch Rexroth for hydraulic automation where stable flow and compact installation are required. It employs a variable volume vane design so the displacement changes automatically when system demand shifts, which cuts energy loss in standby conditions. Right-hand rotation aligns with clockwise driven prime movers typically used on industrial power units. The unit mounts on a subplate, allowing fast removal without disturbing pipework and ensuring accurate port alignment with standardized manifold patterns. A pressure compensator acts as the primary control element; it trims the cam ring position to hold the outlet pressure at the commanded level and lets the pump off-load when actuators idle.

This pump is rated for continuous service at 1000 psi, giving adequate margin for medium-pressure clamping, indexing, and servo circuits. Viton sealing is used throughout the cartridge to tolerate elevated oil temperature and compatibility with synthetic or high-additive fluids often found in factory machinery. Design revision 56 denotes the current engineering release, ensuring interchangeability with preceding models while incorporating incremental improvements to durability. The model is built without a separate volume control, so flow regulation relies entirely on the internal compensator and the system back-pressure, simplifying setting procedures and reducing the number of external adjustments needed in service.