Bosch Rexroth | 4WEH22E7X6EW110N9ETS2K410B10
4WEH22E7X/6EW110N9ETS2K4/10B10
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The 4WEH22E7X/6EW110N9ETS2K4/10B10 directional spool valve is supplied by Bosch Rexroth as part of the WEH Directional Spool Valves series and is intended to route hydraulic flow in automated machinery. It controls a four-way spool in nominal size NG25, giving adequate passage area for high-capacity circuits. Three spring-centered positions return the actuator to neutral when the coils are de-energized, while 280 bar permitted on ports P, A, and B supports high-pressure work functions. Internal pilot supply and internal pilot return reduce external piping, and the pilot stage operates between 10.5 bar and 210 bar with 7.64 cm³ of pilot oil consumed during each shift. An ISO 4401-08-08-0-05 porting pattern aligns the valve with standard sub-plates for straightforward installation.
The solenoid connects through a DIN EN 175301-803 plug so field wiring meets common industrial practices, and a concealed manual override lets maintenance personnel shift the spool during setup or power loss without exposing the mechanism. Port T tolerates back-pressure up to 160 bar, guarding the housing when return lines are restricted. NBR seals contain mineral oil and contribute to an MTTFd of 100 years for functional safety targets. A 1.0 mm B10 throttle insert meters flow to slow spool movement when circuit damping is required. Together these features deliver a compact valve that balances electrical compatibility, service access, and pressure capability for dependable directional control in hydraulic automation.
Technical Specifications
Electrical Connection
DIN EN 175301-803
Manual Override
Concealed
Max Operating Pressure (p,a,b)
280 bar
Max Port T Pressure (et, Ac Coil)
160 bar
Maximum Pilot Pressure
210 bar
Minimum Pilot Pressure
10.5 bar
Mttfd
100 Years
Nominal Size
NG25 (W.H 22)
Pilot Return
Internal (ET)
Pilot Supply
Internal (ET)
Pilot Volume (3-pos Spring)
7.64 cm³
Porting Pattern
ISO 4401-08-08-0-05
Seal Material
NBR
Spool Positions
3 (Spring-Centered)
Throttle Insert
Ø1.0 mm (B10)
Way Configuration
4-Way
1620 Old Apex Road
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