Bosch Rexroth | 4WEH10UA4X6EG24N9K4
4WEH10UA4X/6EG24N9K4
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The 4WEH10UA4X/6EG24N9K4 valve is produced by Bosch Rexroth for the WEH Directional Spool Valves series. This 4-way component directs hydraulic flow in automated circuits and is built in nominal size NG10 to match ISO subplates. Electro-hydraulic actuation allows remote control through a 24 V DC pilot solenoid, while the pilot oil is taken from an external X port to avoid internal pressure loss. Three spring-centered spool positions return the element to neutral when the coil is de-energized, ensuring predictable standby behavior. Interface mounting follows the ISO 4401-05-05-0-05 porting pattern so the unit fits standard manifolds. Electrical hookup is made through a DIN EN 175301-803 connector, and a concealed manual override lets maintenance staff shift the spool without energizing the coil.
Hydraulic limits are arranged for medium-power circuits: the valve passes up to 160 L/min at rated conditions, and the main ports p, a, and b can be pressurized to 280 bar. Return port T shares the same limit, while port Y is restricted to 210 bar in direct-current operation. The pilot stage tolerates up to 250 bar yet requires at least 12 bar to shift the spool, giving reliable response across a broad supply range. These ratings allow the unit to manage actuators that must accelerate quickly and hold load forces without drift. Fluid cleanliness must meet ISO 4406 class 20/18/15 to protect the precision lands and extend service life.
Technical Specifications
Actuation
Electro-Hydraulic
Cleanliness Class
ISO 4406 20/18/15
Electrical Connection
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
Max Pressure Port T
280 bar
Max Pressure Port Y
210 bar (DC)
Min Pilot Pressure
12 bar
Nominal Size
NG10
Pilot Oil Supply
External (X)
Porting Pattern
ISO 4401-05-05-0-05
Spool Positions
3 (Spring-Centered)
Supply Voltage
24 V DC
Valve Function
4-Way
1620 Old Apex Road
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