Bosch Rexroth | 4WEH10J4X6EG24N9ETS2K4B10
4WEH10J4X/6EG24N9ETS2K4/B10
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The 4WEH10J4X/6EG24N9ETS2K4/B10 spool valve is manufactured by Bosch Rexroth for the WEH Directional Spool Valves series. It directs hydraulic flow in automated circuits that need electrically piloted shifting. The unit is built to nominal size NG10 so it mates with subplates conforming to the ISO 4401-05-05-0-05 porting pattern. A 24 V DC coil energizes the pilot stage, and the winding connects through a DIN EN 175301-803 plug. Both pilot oil supply and pilot oil return are internal, eliminating external lines. Switching time can be tuned with a discharge control identified as S2, while a 1.0 mm throttle insert coded B10 moderates pilot flow.
The valve withstands 280 bar at ports P, A, and B during service, and the separate Y port tolerates 210 bar when internally drained. Pilot channels accept up to 250 bar and require at least 12 bar to shift the spring-centered three-position spool. Clean hydraulic fluid to ISO 4406 class 20/18/15 is specified to protect moving parts, and NBR seals maintain leakage control with standard mineral oils. Installation uses M6 × 45 screws per ISO 4762 tightened to 12.5 Nm, providing secure clamping to the manifold. These parameters confirm compatibility with standard industrial power units and ensure consistent response in directional control loops.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Coil Voltage
24 V DC
Electrical Connection
DIN EN 175301-803
Max Operating Pressure (p,a,b)
280 bar
Max Pressure At Y (internal, Dc)
210 bar
Maximum Pilot Pressure
250 bar
Minimum Pilot Pressure (3-pos Spring)
12 bar
Mounting Screws
M6 x 45 (ISO 4762)
Nominal Size
NG10
Pilot Oil Return
Internal
Pilot Oil Supply
Internal
Porting Pattern
ISO 4401-05-05-0-05
Seal Material
NBR
Switching Time Adjustment
Discharge Control (S2)
Throttle Insert Diameter
1.0 mm (B10)
Tightening Torque (m6)
12.5 Nm
1620 Old Apex Road
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