Bosch Rexroth | 4WEH10C4XOF6EW110N9ETDAL
4WEH10C4X/OF6EW110N9ETDAL
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The 4WEH10C4X/OF6EW110N9ETDAL directional spool valve belongs to the WEH Directional Spool Valves series produced by Bosch Rexroth for hydraulic automation tasks that require reliable flow control. It uses electro-hydraulic actuation so an energized pilot stage shifts the main spool without external mechanical input. A 4-way layout provides four service ports to alternately pressurize and exhaust both sides of an actuator, while the NG10 nominal size determines the flow passage area suited to medium-capacity circuits. Spool symbol C defines the internal flow paths chosen for this configuration, and a spring-returned mechanism centers the spool when the pilot signal is removed. High-power pilot valve 6E supplies ample shifting force, and internal pilot oil supply and return marked ET eliminate extra lines. The mounting face follows the ISO 4401-05-05-0-05 porting pattern, allowing the valve to bolt directly to standard subplates.
A coil rated at 110 V AC for 50 or 60 Hz energizes the pilot solenoid so the unit can be wired to common industrial mains. Continuous operation is permitted up to 280 bar on pressure and service ports, while the pilot stage tolerates up to 250 bar. NBR sealing supports fluid temperatures from −20 °C to +80 °C, and the design accepts oil viscosities between 2.8 and 500 mm²/s. System filtration must reach ISO 4406 cleanliness level 20/18/15 to protect the precision spool fit. A concealed manual override designated N9 lets maintenance staff shift the valve locally without projecting controls, and response speed remains fixed because no switching-time adjustment feature is provided.
Technical Specifications
Actuation Type
Electro-Hydraulic
Cleanliness Class
ISO 4406 20/18/15
Coil Voltage
110 V AC (50/60 Hz)
Fluid Temp Range (ports)
−20 to +80 C (NBR)
Main Spool Return
Spring-Returned
Manual Override
Concealed (N9)
Max Operating Pressure (p,a,b)
280 bar
Max Pilot Pressure
250 bar
Nominal Size
NG10
Pilot Control Valve
6E (High-Power)
Pilot Oil Supply/return
Internal (ET)
Porting Pattern
ISO 4401-05-05-0-05
Spool Symbol
C
Switching Time Adjustment
None
Viscosity Range
2.8 to 500 mm2/s
Way Version
4-Way
1620 Old Apex Road
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