Bosch Rexroth | 4WEH10GA4X6EG24N9K4
4WEH10GA4X/6EG24N9K4
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The 4WEH10GA4X/6EG24N9K4 directional spool valve belongs to the WEH Directional Spool Valves series and is produced by Bosch Rexroth. It employs electro-hydraulic pilot actuation so the main spool moves by pressure from an external pilot line rather than direct solenoid force. The unit is built in NG10 size and follows a 4/3-way spool design with symbol G to route pressure to either work port or block flow in the center position for machine circuits that need three discrete states. Two pilot solenoids allow independent shifting to each work position and are energized by a 24 V DC supply delivered through a DIN EN 175301-803 K4 connector. Pilot oil is supplied externally through port X, returned externally by port Y, and the spring-centered spool requires at least 12 bar pilot pressure to overcome the centering force and initiate movement.
At rated conditions the valve passes up to 130 l/min at 280 bar, supporting medium-flow actuator circuits without excessive pressure loss. The pressure rating of 280 bar applies to ports P, A, B, and to the tank port T, while the external Y port is limited to 210 bar, allowing safe discharge of pilot oil to a lower-rated drain line. The mounting interface matches ISO 4401-05-05-0-05 so the valve can be stacked on standard sub-plates in hydraulic manifolds. A concealed manual override designated N9 lets maintenance personnel shift the spool mechanically during commissioning or in case of power loss. Internal component cleanliness conforms to ISO 4406 class 20/18/15 to protect tight clearances and prevent premature wear.
Technical Specifications
Actuation
Electro-Hydraulic Pilot
Cleanliness Class
ISO 4406 20/18/15
Electrical Connection
DIN EN 175301-803 (K4)
Manual Override
Concealed (N9)
Max Flow (spool G, 280 Bar)
130 l/min
Max Pressure (p, A, B)
280 bar
Max Pressure (t Port)
280 bar
Max Pressure (y Port, External)
210 bar
Min Pilot Pressure (spring-centered, X)
12 bar
Pilot Oil Return
External (Y)
Pilot Oil Supply
External (X)
Pilot Solenoids
2
Porting Pattern
ISO 4401-05-05-0-05
Size
NG10
Supply Voltage
24 V DC
Valve Type
4/3-Way Spool (Symbol G)
1620 Old Apex Road
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