Bosch Rexroth | 4WEH10EA4X6EG24N9TK4
4WEH10EA4X/6EG24N9TK4
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The 4WEH10EA4X/6EG24N9TK4 directional spool valve belongs to the WEH Directional Spool Valves series from Bosch Rexroth and is used to route hydraulic flow in automated machinery. It is built in nominal size NG10 so it fits standard subplates for medium-capacity circuits. A three-position spool type E lets the actuator ports be blocked in the neutral position, permitting pressure retention when the valve is not energized. Maximum flow of 160 l/min for symbol E supports moderate throughput without excessive pressure loss, while a 280 bar rating on ports P, A, and B allows operation in high-pressure systems. Port T can also withstand 280 bar, enabling pressurized return lines. External pilot oil supplied through port X shifts the main spool independently of line pressure, and the oil returns internally to port T to reduce external piping. Reliable actuation is guaranteed when at least 12 bar pilot pressure is available, and the mounting interface ISO 4401-05-05-0-05 with M6 screws tightened to 12.5 Nm ensures leak-free installation.
The solenoid coil requires 24 V DC, matching common control voltages in industrial equipment, and connects through a DIN EN 175301-803 K4 plug for quick service. A concealed manual override designated N9 allows local shifting during setup or fault conditions while preventing accidental activation during normal use. Acceptable oil cleanliness is ISO 4406 (c) 20/18/15, limiting particle contamination to maintain spool fit and extend service life. The valve’s mean time to dangerous failure is 100 years (Mttfd), which supports long-term safety assessments in machinery risk calculations. Pilot circuitry may reach up to 250 bar without exceeding design limits, providing flexibility in system layout. These characteristics complete the technical profile of the 4WEH10EA4X/6EG24N9TK4 and define its role in dependable, high-pressure hydraulic automation.
Technical Specifications
Cleanliness Class
ISO 4406 (c) 20/18/15
Coil Voltage
24 V DC
Electrical Connection
DIN EN 175301-803 (K4)
Manual Override
Concealed (N9)
Max Flow (ng10, Symbol E)
160 l/min
Max Operating Pressure (p,a,b)
280 bar
Max Pilot Pressure
250 bar
Max Pressure Port T
280 bar
Min Pilot Pressure (3-pos Spring-centered)
12 bar
Mounting Interface
ISO 4401-05-05-0-05
Mounting Screw Torque (m6)
12.5 Nm
Mttfd (type Weh)
100 years
Nominal Size
NG10
Pilot Oil Return
Internal (T)
Pilot Oil Supply
External (X)
Spool Type
E (3-Position)
1620 Old Apex Road
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