Bosch Rexroth | 4WEH22J7X6EW110N9ETDALB08
4WEH22J7X/6EW110N9ETDAL/B08
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The 4WEH22J7X/6EW110N9ETDAL/B08 valve belongs to the WEH Directional Spool Valves series from Bosch Rexroth and directs hydraulic flow in automation circuits. It houses a NG25 (W.H 22) spool in a 4-way body and offers three discrete positions defined by the J spool symbol. Spool movement is restored by springs, while shifting force is provided by a built-in 6E pilot valve. A concealed N9 manual override permits local actuation during commissioning without exposing the mechanism. The unit mounts on a subplate that conforms to the ISO 4401-08-08-0-05 pattern, simplifying interchange with standard manifolds.
The main flow path handles up to 450 l/min and withstands 280 bar at ports p, a, and b. Pilot circuitry draws oil internally from port X and returns it internally through port T, operating between 10.5 and 210 bar for reliable control across varying system pressures. A 0.8 mm B08 throttle insert moderates pilot oil to stabilize spool travel. These characteristics complete the hydraulic profile and confirm suitability for high-capacity directional control tasks.
Technical Specifications
Main Spool Return
Springs
Manual Override
Concealed (N9)
Max Flow
450 l/min
Max Operating Pressure (p,a,b)
280 bar
Max Pilot Pressure
210 bar
Min Pilot Pressure
10.5 bar
Mounting Type
Subplate
Pilot Oil Return
Internal (T)
Pilot Oil Supply
Internal (X)
Pilot Valve Type
6E
Porting Pattern
ISO 4401-08-08-0-05
Size
NG25 (W.H 22)
Spool Positions
3
Spool Symbol
J
Throttle Insert
0.8 mm (B08)
Way Configuration
4-Way
1620 Old Apex Road
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