Bosch Rexroth | 4WEH22J7X6EW110N9TS2K4
4WEH22J7X/6EW110N9TS2K4
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The 4WEH22J7X/6EW110N9TS2K4 directional spool valve belongs to the WEH Directional Spool Valves series and is produced by Bosch Rexroth for automated hydraulic circuits. It uses electro-hydraulic actuation so an electrical pilot shifts the main spool without direct manual force. The internal spool provides a 4-way flow path, carries the J spool type, and offers three discrete positions to handle extend, retract, and center commands in cylinder drives. At size NG25, the housing matches medium-flow manifold stations, and its subplate interface follows the ISO 4401-08-08-0-05 porting pattern to simplify block mounting. Pilot control is handled by a 4WE 6E valve mounted on the cover, while pressure oil reaches that pilot stage through an external X supply and drains back through an internal T channel.
This model supports a maximum flow of 450 l/min with the J symbol, allowing high-speed actuator movement in presses or molding machines. The main ports tolerate operating pressures up to 280 bar, and the pilot stage accepts up to 210 bar while requiring at least 10.5 bar to shift the spool, ensuring reliable switching over a broad supply range. Switching speed can be trimmed with the discharge control adjustment to match system damping needs. A concealed manual override lets maintenance personnel position the spool during commissioning without exposing the mechanism to contaminants. Electrical connection is provided by a DIN EN 175301-803 plug for quick field wiring and standard sealing. These characteristics complete the valve’s capability profile and permit integration into demanding hydraulic automation systems.
Technical Specifications
Actuation
Electro-Hydraulic
Electrical Connection
DIN EN 175301-803
Manual Override
Concealed
Max Flow (symbol J)
450 l/min
Max Operating Pressure (p,a,b)
280 bar
Max Pilot Pressure
210 bar
Min Pilot Pressure
10.5 bar
Pilot Control Valve
4WE 6E
Pilot Return
Internal (T)
Pilot Supply
External (X)
Porting Pattern
ISO 4401-08-08-0-05
Size
NG25
Spool Positions
3
Spool Type
J
Switching Time Adjustment
Discharge Control
Valve Function
4-Way
1620 Old Apex Road
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