Bosch Rexroth | 4WEH10E4X6EG24N9DAL
4WEH10E4X/6EG24N9DAL
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The 4WEH10E4X/6EG24N9DAL valve is part of the WEH Directional Spool Valves series manufactured by Bosch Rexroth for hydraulic automation where electrically piloted flow control is required. It is built in size NG10, allowing a maximum flow of 160 l/min when the symbol E spool is actuated. A three-position E spool provides a spring-centered neutral position for circuit stability between commands. The unit operates on a 24 V DC pilot coil, and a concealed N9 manual override lets maintenance staff shift the spool without electrical power. System cleanliness must meet ISO 4406 20/18/15 to prevent wear of the precision spool landings. The interface follows porting pattern ISO 4401-05-05-0-05 so the valve can mount on standard subplates.
Maximum operating pressure at ports P, A, and B is 280 bar, while port T is rated for the same 280 bar and port Y is limited to 210 bar to protect the drain circuit. The pilot stage accepts up to 250 bar and needs at least 12 bar to overcome the spring force, displacing 2.04 cm³ of oil during each shift. Four M6 × 45 screws to ISO 4762 secure the body, and each screw is tightened to 12.5 Nm to seal the Rzmax 4 µm mounting surface. These parameters ensure correct clamping, prevent interface leakage, and keep the valve stable under full pressure load.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Manual Override
Concealed (N9)
Max Flow (symbol E, Ng10)
160 l/min
Max Operating Pressure (p, A, B)
280 bar
Max Pilot Pressure
250 bar
Max Pressure At Port T
280 bar
Max Pressure At Port Y (dc)
210 bar
Min Pilot Pressure (spring-centered)
12 bar
Mounting Screws
4x M6 x 45 (ISO 4762)
Mounting Surface Finish
Rzmax 4 um
Pilot Volume (spring-centered)
2.04 cm3
Porting Pattern
ISO 4401-05-05-0-05
Rated Voltage
24 V DC
Screw Tightening Torque
12.5 Nm
Size
NG10
Spool Type
3-Position (E)
1620 Old Apex Road
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