Bosch Rexroth | 4WEH10G4X6EW110N9S2K4
4WEH10G4X/6EW110N9S2K4
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The 4WEH10G4X/6EW110N9S2K4 valve is produced by Bosch Rexroth as part of the WEH Directional Spool Valves series. It is an electro-hydraulic, 4-way unit built for the NG10 size interface where automated control of actuator direction is required. The three-position spool with symbol G provides a central closed position for load holding and two working positions for flow reversal. A porting pattern compliant with ISO 4401-05-05-0-05 standardizes mounting in manifold blocks. External pilot oil enters at port X, so the main stage responds once a minimum pilot pressure of 12 bar is available and can be driven up to a pilot limit of 250 bar. The flow paths tolerate system pressures to 280 bar on ports P, A, and B, and the spool accommodates up to 160 l/min, meeting medium-flow requirements in mobile or industrial circuits.
The concealed manual override lets service personnel shift the spool mechanically without energizing the solenoid, aiding troubleshooting while preventing accidental actuation. Switching time can be tuned through a discharge control feature that meters pilot oil to match response speed to system dynamics. Electrical connection is provided through a plug that follows DIN EN 175301-803, allowing direct integration with standard machine wiring looms. NBR seals contain the hydraulic medium and resist wear, while reliable operation is maintained across a fluid temperature window of –20 °C to +80 °C.
Technical Specifications
Actuation
Electro-Hydraulic
Electrical Connection
DIN EN 175301-803
Hydraulic Fluid Temp Range (nbr)
-20 to +80 C
Manual Override
Concealed
Max Flow (ng10, Spool G)
160 l/min
Max Operating Pressure (p, A, B)
280 bar
Max Pilot Pressure
250 bar
Min Pilot Pressure (x External)
12 bar
Pilot Oil Supply
External (X)
Porting Pattern
ISO 4401-05-05-0-05
Seal Material
NBR
Spool Positions
3-Position
Spool Symbol
G
Switching Time Adjustment
Discharge Control
Valve Size
NG10
Way Configuration
4-Way
1620 Old Apex Road
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