Bosch Rexroth | 4WEH22R7X6EW110N9ETS2DALB10
4WEH22R7X/6EW110N9ETS2DAL/B10
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The 4WEH22R7X/6EW110N9ETS2DAL/B10 valve belongs to the WEH Directional Spool Valves series and is produced by Bosch Rexroth. Designed for automated control of pressurized flow paths, this electro-hydraulic component shifts a 4-way spool to direct fluid between supply and actuator ports. It is built in nominal size NG25, allowing it to fit manifolds that follow the ISO 4401-08-08-0-05 porting pattern. Spool code R defines the overlap and flow path arrangement used during actuation, while the integral 6E pilot control valve governs main spool movement. Electrical energy is supplied to the pilot stage through a 110 V AC 50/60 Hz coil, and a concealed N9 manual override lets technicians reposition the spool during commissioning or fault recovery without energizing the solenoid.
Maximum operating pressure at ports P, A, and B is 280 bar, allowing the valve to handle common industrial lines without derating. The pilot circuit tolerates up to 210 bar on the supply side, and the pilot return path withstands 160 bar when routed to port Y. Pilot oil is taken internally from the pressure port P, while spent pilot oil is discharged externally through port Y to keep pilot flow isolated from tank pressures. Flow stability during rapid shifts is aided by a B10 throttle insert with a 1.0 mm orifice that moderates pilot flow. System cleanliness must meet ISO 4406 class 20/18/15 to protect the precision spool surfaces from wear. With two solenoids and a spring-centered return mechanism, the assembly weighs 11.9 kg.
Technical Specifications
Actuation Type
Electro-Hydraulic
Cleanliness Class
ISO 4406 20/18/15
Coil Voltage
110 V AC (50/60 Hz)
Manual Override
Concealed (N9)
Max Operating Pressure (p,a,b)
280 bar
Max Pilot Pressure
210 bar
Max Pilot Return Pressure (y, Ac)
160 bar
Nominal Size
NG25
Pilot Control Valve
6E
Pilot Oil Return
External Via Port Y (E)
Pilot Oil Supply
Internal From P (E)
Porting Pattern
ISO 4401-08-08-0-05
Spool Symbol
R
Throttle Insert
Ø 1.0 mm (B10)
Way Configuration
4-Way
Weight (2 Solenoids, Spring-centered)
11.9 kg
1620 Old Apex Road
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