4WEH32C6X/6EW110N9S2DAL

The 4WEH32C6X/6EW110N9S2DAL valve is part of the WEH Directional Spool Valves series and is produced by Bosch Rexroth for hydraulic automation circuits. It is electro-hydraulically actuated, so a pilot solenoid moves the main spool by using pilot oil rather than direct electromagnetic force. The 4-way configuration provides pressure, tank, and two work ports needed for bidirectional cylinder or motor control. Nominal size NG32 establishes large port areas that accommodate heavy flow demands. A spool coded C defines the flow pattern used when the valve is shifted, permitting crossover paths suitable for motor reversal. When system pressure reaches 280 bar at ports P, A, or B, the valve can still pass up to 800 l/min, giving high energy throughput in press machinery or test rigs. The main stage tolerates a pilot supply up to 250 bar, and a minimum pilot pressure of 10 bar is required in spring-returned two-position builds to guarantee full spool travel. Together these limits safeguard reliable switching in high-pressure circuits.

The pilot stage is the 6E high-power design, supplying robust magnetic force to shift the main spool under the indicated flow and pressure conditions. Pilot oil returns externally through port Y, preventing back-pressure in the cover and improving repeatability in remote manifolds. Port T is allowed to see 250 bar, enabling the valve to discharge flow into boosted returns without damage, while port Y is limited to 160 bar to protect the pilot drain passages. Installation follows the ISO 4401-10-09-0-05 interface, so the unit can be mounted on standard sub-plates without additional machining. Four M20 × 80 screws to ISO 4762 secure the body and maintain sealing under full load. A concealed manual override designated N9 lets maintenance personnel shift the spool locally for setup or fault clearing without removing coil covers. The valve weighs 17.6 kg with one solenoid, information required for selecting suitable handling equipment and verifying manifold support capacity.