Bosch Rexroth | 4WEH10J4X6EW110N9ETK4B10V
4WEH10J4X/6EW110N9ETK4/B10V
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The 4WEH10J4X/6EW110N9ETK4/B10V valve belongs to the WEH Directional Spool Valves series manufactured by Bosch Rexroth for automated hydraulic circuits. It uses electro-hydraulic actuation so a pilot signal can shift the spool without direct mechanical force. The 4-way layout permits controlled routing between pressure, work, and tank lines, while a nominal size of NG10 defines its flow capacity. Spool code J identifies the flow pattern inside the housing. Pilot oil is both supplied and returned internally, eliminating external pilot hoses, and the spool remains centered until a 12 bar pilot pressure is reached. A 1.0 mm throttle orifice in the pilot path moderates shifting speed, and a concealed manual override lets operators reposition the spool when electrical power is unavailable.
An electrical plug conforming to DIN EN 175301-803 K4 connects the solenoid coil and simplifies wiring inside control manifolds. The main flow paths withstand up to 280 bar, while the pilot stage tolerates 250 bar and sees a safe return backpressure of 160 bar. FKM seals isolate the working fluid from the environment and resist high-temperature oils. The subplate interface follows ISO 4401-05-05-0-05 so the valve fits standard NG10 bases, and installation is completed with four M6 × 45 screws listed in ISO 4762. These mechanical and hydraulic limits ensure dependable service when the valve is mounted in servo manifolds or distributed machine blocks.
Technical Specifications
Actuation Type
Electro-Hydraulic
Electrical Connection
DIN EN 175301-803 (K4)
Manual Override
Concealed (N9)
Max Operating Pressure (p, A, B)
280 bar
Max Pilot Pressure
250 bar
Max Pilot Return Pressure (internal, Ac)
160 bar
Min Pilot Pressure (spring-centered)
12 bar
Mounting Interface
ISO 4401-05-05-0-05
Mounting Screws
M6 x 45 (ISO 4762)
Nominal Size
NG10
Pilot Oil Return
Internal (ET)
Pilot Oil Supply
Internal (ET)
Seal Material
FKM
Spool Symbol
J
Throttle Orifice
1.0 mm (B10)
Way Configuration
4-Way
1620 Old Apex Road
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