Bosch Rexroth | H-4WEH22J7X6EW110N9ETK4B10D3
H-4WEH22J7X/6EW110N9ETK4/B10D3
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The H-4WEH22J7X/6EW110N9ETK4/B10D3 directional spool valve belongs to the WEH Directional Spool Valves series and is produced by Bosch Rexroth. Intended for hydraulic automation, the NG25 valve directs oil with spool symbol J and passes up to 450 l/min through three selectable spool positions. It withstands 280 bar on ports P, A, and B, allowing operation in high-pressure circuits. Pilot control is taken internally from port P and returned internally to T, so no external pilot lines are required. The pilot stage accepts pressures up to 210 bar and remains spring-centered when supply falls below 10.5 bar. Solenoid actuation is wired through a DIN EN 175301-803 K4 electrical connector for quick electrical hookup.
For manifold integration, the valve matches the ISO 4401-08-08-0-05 porting pattern and is fastened with six M12 × 60 mounting screws tightened to 100 Nm within a ±10 percent range, a combination that secures the body against pressure-induced bending. A D3 pressure-reducing element protects the pilot circuit from over-pressure, while a 1.0 mm diameter B10 throttle insert tempers pilot flow for stable shifting under fluctuating supply conditions. The assembly weighs 11.9 kg with two solenoids fitted, so lift points or support rails must be considered during installation.
Technical Specifications
Electrical Connection
DIN EN 175301-803 (K4)
Max Flow (symbol J)
450 l/min
Max Operating Pressure (p/a/b)
280 bar
Max Pilot Pressure
210 bar
Min Pilot Pressure (spring-centered)
10.5 bar
Mounting Screws
6 x M12 x 60
Nominal Size
NG25
Pilot Oil Return
Internal To T (ET)
Pilot Oil Supply
Internal From P (ET)
Porting Pattern
ISO 4401-08-08-0-05
Pressure Reducing Valve
D3
Screw Tightening Torque
100 Nm (±10%)
Spool Positions
3
Spool Symbol
J
Throttle Insert
Ø1.0 mm (B10)
Weight (two Solenoids)
11.9 kg
1620 Old Apex Road
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