Bosch Rexroth | 4WEH10G4X6EG24N9SDA
4WEH10G4X/6EG24N9SDA
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The 4WEH10G4X/6EG24N9SDA valve belongs to the WEH Directional Spool Valves series and is manufactured by Bosch Rexroth for hydraulic automation circuits. It employs electro-hydraulic actuation so an electrical signal drives the spool via pilot oil. The unit is built in nominal size NG10, and the spool provides a 4-way flow path to direct pressure between service lines. A coil rated at 24 V DC energizes the pilot stage, while pilot oil is supplied externally through port X and returned externally through port Y to keep the main lines free of pilot flow. Installation uses the ISO 4401-05-05-0-05 interface, allowing direct mounting on common subplates in manifold systems. For reliable operation the hydraulic medium must meet cleanliness class 20/18/15 per ISO 4406.
A concealed manual override lets maintenance staff shift the spool without electrical power, and switching time can be tuned through the supply control S arrangement to match system dynamics. The valve passes up to 120 l/min at 350 bar with symbol G, giving adequate flow for medium-size actuators. Working ports p, a, and b tolerate pressures to 280 bar, and the tank port t is rated for the same 280 bar limit. The pilot circuit accepts pressure up to 250 bar and needs at least 12 bar to center the spring-loaded spool. With two solenoids and the spring-centered design the assembly weighs 6.8 kg, making it manageable for panel or machine mounting.
Technical Specifications
Actuation
Electro-Hydraulic
Coil Voltage
24 V DC
Fluid Cleanliness Class
20/18/15 (ISO 4406)
Manual Override
Concealed
Max Flow (symbol G, 350 Bar)
120 l/min
Max Operating Pressure (p,a,b)
280 bar
Max Operating Pressure (t)
280 bar
Max Pilot Pressure
250 bar
Min Pilot Pressure (spring-centered)
12 bar
Mounting Interface
ISO 4401-05-05-0-05
Nominal Size
NG10
Pilot Return
Y External
Pilot Supply
X External
Switching Time Adjustment
Supply Control (S)
Way Configuration
4-Way
Weight (2 Solenoids, Spring-centered)
6.8 kg
1620 Old Apex Road
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