4WRPEH6C3B25P-2X/G24K0/B5M

The 4WRPEH6C3B25P-2X/G24K0/B5M valve belongs to the 4WRP Solenoid Valves series from Bosch Rexroth and serves as a proportional pilot-operated directional unit for hydraulic automation circuitry. Its nominal size of 6 enables installation in compact NG6 manifolds where space is limited. The ISO 4401-03-02-0-05 mounting pattern matches common subplates, simplifying block assembly and maintenance. With a rated flow of 25 l/min at a differential pressure of 35 bar, the valve can modulate medium volume circuits with steady accuracy. Maximum operating pressure reaches 315 bar on ports P, A, and B, while port T is limited to 250 bar, allowing high-pressure actuation yet protecting the return line. The C3 spool symbol defines the metering lands that create symmetrical flow paths for bidirectional cylinder control. An inflected P flow characteristic provides a progressive opening curve so small command changes produce fine positioning at low flow and faster movement at higher flow. Step response from 0 to 100 percent stroke is 10 ms or less, supporting fast closed-loop positioning in servo systems.

The integrated 24 V DC supply for the on-board electronics powers both the proportional solenoid and the inductive LVDT position transducer, removing the need for external signal conditioners. A 6 + PE connector per EN 175201-804 provides the electrical interface, giving separate pins for power, command, and feedback lines plus protective earth. Closed-loop control hysteresis remains at or below 0.2 percent, which minimizes steady-state deviation and ensures repeatable spool positioning. NBR sealing elements resist common mineral oils and maintain leakage integrity across the service temperature range. Fluid cleanliness must meet ISO 4406 class 18/16/13 to preserve the precision gaps between spool and housing. The steel body weighs 2.7 kg, allowing single-person installation without special lifting equipment. An assessed mean time to dangerous failure of 150 years under typical duty cycles supports long-term deployment in safety-related machinery.