4WE6D6X/OFEW110DK25L

The 4WE6D6X/OFEW110DK25L valve belongs to the WE Directional Spool Valves series and is produced by Bosch Rexroth. It switches oil flow paths under electrical command to automate cylinder or motor direction. The coil operates at 110 V AC, allowing direct connection to standard plant power. A rated current of 0.52 A at 50 Hz keeps coil heating within limits on European networks. When supplied with 60 Hz power, the current falls to 0.39 A while the design accepts either frequency without modification. The DK25L five-pole connector provides dedicated pins for each solenoid and ground, reducing wiring errors. An IP65 protection class seals the envelope against dust ingress and low-pressure water jets, supporting outdoor mounting. A detent holds the spool in its last energized position, eliminating continuous coil power in maintained states. Because there is no spring return, the spool remains in place until the opposite coil or hydraulic force moves it.

The internal passages are sized for a maximum flow of 60 l/min, maintaining acceptable pressure drop at rated conditions. Paths p, a, and b tolerate operating pressures up to 350 bar, allowing use on high-pressure supply lines. The tank port can withstand back pressure up to 160 bar, preventing cavitation when return lines are restricted. The body follows the ISO 4401-03-02-0-05 mounting pattern, so it bolts to any CETOP 03 subplate without adaptation. This pattern lines up the pressure and work ports with standard gasket grooves. Port layout also meets the NFPA D03 designation, aligning with North American manifold standards. Mounting screws should be tightened to 7 Nm, providing the clamp load needed to seal without distorting the base. With two solenoids installed, the valve weighs 1.95 kg, light enough for one-person handling during service.