Bosch Rexroth | 4WEH10G4X6EW110N9TDA
4WEH10G4X/6EW110N9TDA
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The 4WEH10G4X/6EW110N9TDA directional valve is built by Bosch Rexroth within the WEH Directional Spool Valves series. It directs hydraulic flow to automate cylinders or motors by shifting a 4-way, 3-position spool G. Electro-hydraulic actuation moves the spool with a pilot stage so only low force is required at the electrical interface. The valve is nominal size 10 and follows porting pattern ISO 4401-05-05-0-05 so it mounts on standard subplates without piping changes. A 110 V AC 50/60 Hz solenoid energizes the pilot stage, while external port X feeds pilot oil and an internal channel T returns it to the tank. A concealed manual override labeled N9 lets maintenance personnel shift the spool when power is absent. The assembly weighs 6.8 kg when fitted with two spring-centered solenoids, allowing one-person handling during installation.
The hydraulic performance envelope reaches 280 bar at pressure and service ports, allowing the valve to control high-force actuators. With the G spool it passes up to 160 l/min, making it suitable for medium-flow circuits. Pilot supply may be pressurized to 250 bar, yet the spool will still move reliably once external pressure exceeds the 12 bar minimum specified for three-position operation. The internal tank line tolerates 160 bar, protecting return components from excessive back-pressure. Circuit cleanliness must not exceed ISO 4406 code 20/18/15 to minimize wear on the precision metering edges. Four M6 × 45 mounting screws secure the body to the manifold and resist loosening under vibration. These combined limits define reliable service life when the valve is operated in automated hydraulic systems.
Technical Specifications
Actuation Type
Electro-Hydraulic (WEH)
Cleanliness Class (iso 4406)
20/18/15
Manual Override
Concealed (N9)
Max Flow (g Spool)
160 l/min
Max Operating Pressure (p,a,b)
280 bar
Max Pilot Pressure
250 bar
Max Tank Port Pressure (t)
160 bar (AC, internal)
Min Pilot Pressure (3-pos, X External)
12 bar
Mounting Screws
M6 x 45 (4 Pieces)
Pilot Oil Return
Internal (T)
Pilot Oil Supply
External (X)
Porting Pattern
ISO 4401-05-05-0-05
Size (ng)
10
Solenoid Voltage
110 V AC (50/60 Hz)
Valve Function
4-Way, 3-Position (Spool G)
Weight (2 Solenoids, Spring-centered)
6.8 kg
1620 Old Apex Road
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