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The 4WEH22J7X/6EW110N9EDA/B10V valve belongs to the WEH Directional Spool Valves series from Bosch Rexroth and directs hydraulic flow in automated circuits. It is built in size NG25 and follows the ISO 4401-08-08-0-05 porting pattern for manifold mounting. With the J spool installed, the valve passes up to 450 l/min, while the work ports tolerate operating pressures as high as 280 bar. Acceptable fluid viscosities range from 2.8 to 500 mm²/s. The housing may face ambient temperatures between –15 and +50 °C, and the hydraulic fluid can range from –15 to +80 °C. System cleanliness must meet ISO 4406 (c) 20/18/15, and FKM seals, identified by code V, maintain tightness under these conditions.
Two solenoids center the three-position spool with springs, and the internal pilot oil supply (code E) is complemented by an external pilot oil return, also coded E. The pilot stage withstands pressures up to 210 bar but needs at least 10.5 bar to initiate a shift, with 35 l/min of pilot flow delivering the shortest switching time. A throttle insert with a 1.0 mm orifice (B10) can be added to moderate pilot surges. The assembled valve weighs 11.9 kg, which must be considered when supporting the manifold or subplate.
Ambient Temp Range (fkm)
–15 to +50 °C
Cleanliness Class
ISO 4406 (c) 20/18/15
Hydraulic Fluid Temp Range (fkm)
–15 to +80 °C
Max Flow (spool J)
450 l/min
Max Operating Pressure (p, A, B)
280 bar
Max Pilot Pressure
210 bar
Min Pilot Pressure (3-spool, Spring-centered)
10.5 bar
Pilot Flow For Shortest Switching
35 l/min
Pilot Oil Return
External (code E)
Pilot Oil Supply
Internal (code E)
Porting Pattern
ISO 4401-08-08-0-05
Seal Material
FKM (code V)
Throttle Insert
Ø 1.0 mm (B10)
Valve Size
NG25
Viscosity Range
2.8 to 500 mm²/s
Weight (two Solenoids, Spring-centered)
11.9 kg
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