Bosch Rexroth | 4WEH22G7X6EW110N9EDAB10
4WEH22G7X/6EW110N9EDA/B10
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The 4WEH22G7X/6EW110N9EDA/B10 directional spool valve is produced by Bosch Rexroth within the WEH Directional Spool Valves series. The four-way NG25 unit directs hydraulic flow in automated circuits that require rapid switching under high load. A porting pattern conforming to ISO 4401 simplifies subplate mounting and interchangeability with standard manifolds. The valve handles a maximum operating pressure of 280 bar at ports P, A, and B so it can be placed on high-pressure mobile or industrial lines, while a rated flow capacity of 200 l/min supports large actuator velocities. Pilot actuation is provided by a 6E pilot control valve that receives oil from the internal X gallery; this stage begins to shift the main spool once the internal pilot reaches 4.5 bar and remains stable up to 210 bar. External Y drainage removes pilot oil to tank, preventing case pressure buildup. A 1.0 mm throttle insert can be installed to dampen switching shocks when system dynamics demand added flow restriction.
The valve operates correctly with hydraulic fluids having viscosities between 2.8 and 500 mm²/s, making it compatible with a wide range of mineral oils and synthetics used in plant machinery. Ambient temperatures from −20 °C to +50 °C and fluid temperatures from −20 °C to +80 °C permit reliable service in unconditioned environments. The concealed N9 manual override allows technicians to reposition the spool during commissioning without exposing the override pin to accidental hits. Port Y is limited to 160 bar to protect the pilot exhaust circuit and seals. The spring-centered assembly with two solenoids weighs 11.9 kg, enabling direct mounting on valve stacks without additional support. As a result, the 4WEH22G7X/6EW110N9EDA/B10 provides precise, high-capacity routing of pressure and return lines in automated presses, injection machines, and mobile work platforms.
Technical Specifications
Ambient Temp Range (nbr)
-20 to +50 C
Hydraulic Fluid Temp Range (nbr)
-20 to +80 C
Manual Override
Concealed (N9)
Max Flow (symbol G, 280 Bar)
200 l/min
Max Operating Pressure (p, A, B)
280 bar
Max Pilot Pressure
210 bar
Max Port Y Pressure (ac)
160 bar
Min Pilot Pressure (x Internal)
4.5 bar
Pilot Control Valve
6E
Pilot Oil
X Internal, Y External
Porting Pattern
ISO 4401
Size
NG25
Throttle Insert
1.0 mm
Viscosity Range
2.8 to 500 mm2/s
Way Configuration
4-Way
Weight (2 Solenoids, Spring-centered)
11.9 kg
1620 Old Apex Road
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