H-4WEH32G6X/6EW110N9K4

The H-4WEH32G6X/6EW110N9K4 valve belongs to the Bosch Rexroth WEH Directional Spool Valves series. It directs hydraulic flow in automation circuits that require fast on/off switching and remote electrical actuation. With a nominal size of NG32, the housing accepts large passage areas to reduce pressure loss at high throughput. The design handles a continuous flow of 1100 l/min, enabling it to supply multiple actuators or large-volume cylinders without bottlenecking the system. Mounting follows the ISO 4401-10-09-0-05 porting pattern, so the valve fits standard subplates and manifolds in size 32 hydraulic stacks. Electrical power reaches the solenoids through a DIN EN 175301-803 type K4 rectangular connector, which provides keyed alignment and a protective seal against oil spray.

For pressure capability, the service ports P, A, and B are rated for 350 bar, permitting the valve to work in high-pressure industrial presses and mobile drives. Pilot control lines may see up to 250 bar, while port T is limited to the same 250 bar to protect return circuit components. Reliable shifting requires at least 8.5 bar external pilot pressure in three-position operation, ensuring consistent spool movement even when main line pressure is low. A concealed N9 manual override is built into the solenoid tube so maintenance staff can reposition the spool during commissioning or in the event of electrical failure without exposing moving parts. Together these pressure limits and backup features provide predictable performance in demanding hydraulic automation tasks.