Bosch Rexroth | 4WEH10J4X6EW110N9S2K4
4WEH10J4X/6EW110N9S2K4
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The 4WEH10J4X/6EW110N9S2K4 directional spool valve belongs to the WEH Directional Spool Valves series and is manufactured by Bosch Rexroth for hydraulic automation systems. As a size NG10 unit, it mounts on subplates with the ISO 4401-05-05-0-05 porting pattern to standardize installation across machines. Its spool carries the J symbol and offers three spring-centered positions, so flow paths default to a neutral state until energized. The solenoid coil is rated at 110 V AC for 50 or 60 Hz supplies, providing consistent magnetic force during actuation. A DIN EN 175301-803 K4 plug handles the electrical connection for straightforward wiring. A concealed manual override coded N9 lets maintenance staff shift the spool without power when troubleshooting is required. The discharge-type switching time adjustment designated S2 allows the response time to be altered by bleeding pilot oil. When spring centering is employed, the pilot circuit needs at least 12 bar to move the spool reliably.
For circuit performance, the valve passes up to 160 l/min while maintaining channel pressures of 280 bar at ports P, A, and B. The same 280 bar limit applies to port T, enabling high-pressure tank return layouts when required. Pilot control is supplied externally through port X so main line pressure does not influence the pilot stage. Return oil from the pilot stage exits through external port Y, which tolerates up to 160 bar. The pilot circuit itself may be driven as high as 250 bar, giving a safety margin above the minimum figure noted earlier. With this flow capacity, connected cylinders or hydraulic motors can achieve full travel speed without excessive pressure drop, supporting reliable actuation in high-demand machinery.
Technical Specifications
Coil Voltage
110 V AC (50/60 Hz)
Electrical Connection
DIN EN 175301-803 (K4)
Manual Override
Concealed (N9)
Max Flow
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 (spring-centered)
12 bar
Pilot Return
External (Y)
Pilot Return Y Max Pressure (ac)
160 bar
Pilot Supply
External (X)
Porting Pattern
ISO 4401-05-05-0-05
Size
NG10
Spool Positions
3 (Spring-Centered)
Spool Symbol
J
Switching Time Adjustment
Discharge (S2)
1620 Old Apex Road
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