PSV-PSAF-15DRM-66

The PSV-PSAF-15DRM-66 variable vane pump belongs to the PSV Variable Vane Pumps series from Bosch Rexroth and serves hydraulic automation circuits that require a controlled oil supply. Design version 66 defines the internal geometry adopted for this model. A pressure compensator regulates displacement so the outlet pressure stays within its target range as loads vary. When driven at 1800 rpm the unit delivers 11 GPM, supplying moderate-flow applications such as small presses or fixture clamps. The maximum working limit is 1000 psi, establishing the peak pressure the downstream components must withstand. Right-hand rotation aligns with prime movers that turn clockwise when viewed from the shaft end. Catalog number R978709521 maps directly to this pump for sourcing and inventory reference.

Flange, side-ported SAE mounting lets the housing bolt to a power frame while presenting both ports on one side for straightforward hose routing. The suction line connects to an SAE 20 (1-5/8-12) inlet, providing ample area to minimize velocity and avoid cavitation. Discharge oil leaves through an SAE 12 (1-1/16-12) outlet that matches common pressure tube sizes. A screw adjustment volume control allows a technician to trim displacement without altering drive speed, tailoring pump output to system demand. Viton seals are installed to tolerate mineral oils, synthetic fluids, and elevated temperatures, increasing reliability in continuous-duty service.