4WEH32J6X/6EW110N9DA

The 4WEH32J6X/6EW110N9DA directional spool valve belongs to the WEH Directional Spool Valves series from Bosch Rexroth and serves to switch high-flow hydraulic lines in automated machinery. Its nominal size 32 sets the internal passage area so the valve can accommodate large volumes without excessive pressure loss. A 4-way, 3-position configuration provides separate pressure, return, and two work ports with a neutral center for balanced circuit control. The J spring-centered spool returns automatically to center, maintaining a default blocked flow position when the solenoids are de-energized. With a maximum flow of 680 l/min at 350 bar on the J spool, the valve supports fast actuator movement in high-demand systems. Ports P, A, and B can be pressurized up to 280 bar, allowing the unit to operate in standard high-pressure industrial power packs. Port T handles external return pressures up to 250 bar so back-pressure in the tank line does not impair function. An ISO 4401-10-09-0-05 mounting interface lets the valve bolt directly to common subplates, and a weight of 41.0 kg with two solenoids must be considered when selecting support hardware.

A concealed manual override (N9) is provided to let technicians shift the spool by hand during setup or in the event of a power loss. Pilot supply may reach 250 bar, which defines the upper limit for the control circuit feeding the pilot stage. The valve still responds at a minimum pilot pressure of 8.5 bar for spring-centered operation, permitting use with low-pressure control pumps. A pilot flow requirement of 45 l/min yields the shortest switching time, guiding designers in sizing pilot lines. The pilot volume of 29.4 cm³ in the three-position spring-centered version influences how quickly the spool accelerates during shifts. A permissible pilot return pressure of 160 bar on port Y protects the pilot section from excessive back-pressure. An ambient temperature limit of 50 °C ensures electrical and sealing components remain within their thermal ratings. Hydraulic fluid may reach 80 °C, a constraint that informs the selection of oil coolers and fluid maintenance schedules.