Bosch Rexroth | 4WEH10E4X6EW110N9ETDALB10
4WEH10E4X/6EW110N9ETDAL/B10
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The 4WEH10E4X/6EW110N9ETDAL/B10 directional spool valve is manufactured by Bosch Rexroth within the WEH Directional Spool Valves series. It provides electro-hydraulic actuation so a pilot stage shifts the main spool without large solenoid forces. The nominal size NG10 interface routes flow through a 4/3-way E-type spool to start, stop, or reverse hydraulic circuits. A high-power 6E pilot control valve handles the shifting command while receiving pilot oil internally from port P and returning it internally through port T. During spring-centered service the valve passes up to 160 l/min. Secure mounting requires four M6 × 45 screws that meet ISO 4762.
The unit mates to subplates following the ISO 4401-05-05-0-05 porting pattern, and flow is conditioned by a 1.0 mm throttle insert designated B10. Ports P, A, and B withstand up to 280 bar, whereas the pilot circuit is limited to 250 bar. Reliable actuation begins once pilot pressure reaches 12 bar, and the internal centering spring functions when pressure at port P exceeds 4.5 bar. A concealed N9 manual override lets technicians reposition the spool when electrical power is absent.
Technical Specifications
Actuation
Electro-Hydraulic (WEH)
Manual Override
Concealed (N9)
Max Flow (e, Spring-centered)
160 l/min
Max Operating Pressure (p,a,b)
280 bar
Max Pilot Pressure
250 bar
Min Pilot Pressure (spring-centered)
12 bar
Min Pressure At P For X Internal
4.5 bar
Mounting Screws
4 × M6 × 45 (ISO 4762)
Nominal Size
NG10
Pilot Control Valve
High-Power (6E)
Pilot Oil Return
Internal (via T)
Pilot Oil Supply
Internal (from P)
Porting Pattern
ISO 4401-05-05-0-05
Spool Type
E
Throttle Insert
Ø 1.0 mm (B10)
Way Configuration
4/3-Way
1620 Old Apex Road
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