Bosch Rexroth | 4WEH10G4X6EG24N9DA
4WEH10G4X/6EG24N9DA
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The 4WEH10G4X/6EG24N9DA valve belongs to the WEH Directional Spool Valves series and is manufactured by Bosch Rexroth for directing flow in hydraulic automation circuits. It is built to the NG10 nominal size, and its interface follows the ISO 4401-05-05-0-05 porting pattern for manifold mounting. An external pilot oil supply and an external pilot oil return separate the control stage from the main line pressure. Each pilot solenoid operates on 24 V DC, while a concealed manual override designated N9 allows local actuation when electrical power is unavailable. The unit passes up to 160 l/min under symbol G and requires at least 12 bar pilot pressure to shift its spring-centered three-position spool. Pilot pressure may rise to 250 bar without overloading the control stage, and the shifting chamber only needs 2.04 cm³ of pilot oil per cycle.
Main flow ports P, A, and B tolerate 280 bar, and the T return port is rated for the same 280 bar to simplify circuit design. NBR seal material resists standard hydraulic oils and maintains leakage control at the stated pressures. The valve attaches with four M6 × 45 screws tightened to 12.5 Nm, ensuring the body seats evenly on the manifold surface. A mean time to dangerous failure of 100 years supports use in safety-related motion functions where long service life is required.
Technical Specifications
Manual Override
Concealed (N9)
Max Flow (symbol G)
160 l/min
Max Operating Pressure (p/a/b)
280 bar
Max Operating Pressure (port T)
280 bar
Max Pilot Pressure
250 bar
Min Pilot Pressure (3-pos, Spring-centered)
12 bar
Mounting Screw Torque
12.5 Nm
Mounting Screws
4 x M6 x 45
Mttfd
100 years
Nominal Size
NG10
Pilot Oil Return
External
Pilot Oil Supply
External
Pilot Volume (3-pos, Spring-centered)
2.04 cm³
Porting Pattern
ISO 4401-05-05-0-05
Rated Voltage (pilot Solenoids)
24 V DC
Seal Material
NBR
1620 Old Apex Road
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