Bosch Rexroth | 4WEH10D4X6EG24N9K4
4WEH10D4X/6EG24N9K4
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The 4WEH10D4X/6EG24N9K4 directional spool valve is manufactured by Bosch Rexroth and forms part of the WEH Directional Spool Valves series. It is intended to route pressurized fluid to hydraulic cylinders or motors under automated control in mobile and industrial equipment. Electro-hydraulic actuation lets an electrical signal shift the spool, combining rapid response with remote command capability. The NG10 valve size establishes interface dimensions suitable for mid-range flow demands, while the 4-way spool layout provides two service ports plus pressure and tank lines for bidirectional actuator motion. An ISO 4401-05-05-0-05 mounting pattern allows direct installation on standardized subplates. The spool accommodates up to 160 l/min, and ports p, a, and b tolerate 280 bar so the unit can serve high-pressure circuits. A 24 V DC coil energizes the pilot stage, and a DIN EN 175301-803 connector offers a compact plug-in electrical interface.
The pilot section operates with pressures up to 250 bar and needs at least 10 bar to move the main spool, giving designers a defined control range. External pilot oil supply keeps the control circuit clean of load shocks, and an external pilot oil return directs drainage to tank without passing through the manifold gallery. Four M6 × 45 screws specified by ISO 4762 fasten the valve to the subplate; each screw is tightened to 12.5 N·m to maintain seal compression without thread damage. A concealed manual override permits on-site spool shifting during commissioning or power loss while protecting the mechanism from accidental actuation. These mechanical provisions complement the hydraulic ratings and create a stable mounting arrangement that maintains alignment and leak-free operation throughout the valve’s service life.
Technical Specifications
Actuation
Electro-Hydraulic
Coil Voltage
24 V DC
Electrical Connector
DIN EN 175301-803
Manual Override
Concealed
Max Flow
160 l/min
Max Operating Pressure (p,a,b)
280 bar
Max Pilot Pressure
250 bar
Minimum Pilot Pressure
10 bar
Mounting Screws
M6 x 45 (ISO 4762)
Pilot Oil Return
External
Pilot Oil Supply
External
Porting Pattern
ISO 4401-05-05-0-05
Screw Quantity
4
Screw Tightening Torque
12.5 Nm
Valve Size
NG10
Ways
4-Way
1620 Old Apex Road
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