PGH4-3X/025RE11VU2

The PGH4-3X/025RE11VU2 gear pump belongs to the PGH High Pressure Gear Pumps series from Bosch Rexroth and is intended to move hydraulic oil in fixed-displacement circuits. Its displacement of 25.3 cm³ per revolution establishes the volume delivered every shaft turn, while a nominal flow of 36.3 L/min at 1450 rpm provides a common reference point for sizing downstream components. Continuous operation is supported at 250 bar, so cylinders and motors can work under steady high load, and momentary peaks up to 350 bar are permitted for pressure surges. The unit tolerates shaft speeds down to 200 rpm, enabling slow-movement functions during machine setup, and it can accelerate safely to 3000 rpm when rapid actuation is required. Clockwise rotation is specified to align with standard electric motor drives and prevent port cross-connection. These parameters frame the pump’s performance envelope for demanding industrial automation tasks.

A minimum absolute inlet pressure of 0.8 bar keeps cavitation in check at the suction side, aided by the 1 1/4 in SAE suction port that offers low restriction for high-viscosity fluids. The unit can supply as much as 75 L/min, giving designers latitude to service multiple actuators from a single source. The mounting flange follows the two-hole 101-2 pattern defined by ISO 3019-1, allowing direct interchange with other high-pressure units in the same frame size. Discharge oil exits through a 3/4 in SAE high-pressure port that matches common hose assemblies rated for the stated working limits. An FKM shaft seal resists heat and mineral-based hydraulic media, extending service life under continuous duty. A through-drive interface is provided so an auxiliary pump can be piggy-backed without an extra motor, and the assembly weighs 14.84 kg, a consideration for manifold support and bracket selection.