Bosch Rexroth | 4WEH22HD7X6EG24N9SK4
4WEH22HD7X/6EG24N9SK4
Request a Quote
Call For Quote
What Happens Next?
Email Confirmation
You will get an email confirming we have received your inquiry.
Dedicated Account Manager
A team member will review your request and be in touch concerning any questions or specifications.
Quote Delivered
You will receive a comprehensive quote tailored to your specific needs.
The 4WEH22HD7X/6EG24N9SK4 directional spool valve is built by Bosch Rexroth for the WEH Directional Spool Valves series and directs pressurized fluid in automated hydraulic circuits. The valve is specified for a nominal size of NG25, providing a passage area suited to mid-range power machinery. Its 4-way flow path and two spool positions enable forward and reverse control plus shutoff as required by cylinder or motor circuits. A maximum flow capacity of 450 l/min limits pressure drop during rapid actuator movement. The solenoid pilot operates on a 24 V DC coil, and the integrated 6E high-power pilot stage ensures fast shifting under load. Pilot oil is introduced externally through port X and returned externally via port Y, keeping the main ports isolated from pilot pressure. The pilot circuit needs at least 8 bar to move the spool, establishing a clear actuation threshold for stable operation.
A 210 bar ceiling on the pilot circuit prevents overstressing the pilot components, while ports p, A, and B withstand up to 350 bar for heavy-duty actuators. Port T is limited to 250 bar and port Y shares the 210 bar limit, permitting safe tank and drain connections in closed-center systems. Electrical wiring is completed with a DIN EN 175301-803 K4 connector, providing standardized sealing and polarity. A concealed N9 manual override lets maintenance staff shift the spool mechanically without exposing moving parts. The interface follows the ISO 4401-08-08-0-05 porting pattern, so the unit mounts on common NG25 subplates without adapters. These pressure, connection, and mounting values define how the valve integrates into high-pressure, high-flow hydraulic manifolds.
Technical Specifications
Coil Voltage
24 V DC
Electrical Connection
DIN EN 175301-803 (K4)
Manual Override
Concealed (N9)
Max Pilot Pressure
210 bar
Max Pressure (p, A, B)
350 bar
Max Pressure (port T)
250 bar
Max Pressure (port Y)
210 bar
Maximum Flow
450 l/min
Min Pilot Pressure
8 bar
Nominal Size
NG25
Pilot Return
External (Y)
Pilot Supply
External (X)
Pilot Valve Type
6E (High-Power)
Porting Pattern
ISO 4401-08-08-0-05
Spool Positions
2
Way Configuration
4-Way
1620 Old Apex Road
Shipping & Payment Options
