Bosch Rexroth | 4WEH22E7X6EG24N9S2K4
4WEH22E7X/6EG24N9S2K4
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The 4WEH22E7X/6EG24N9S2K4 directional spool valve is manufactured by Bosch Rexroth as part of the WEH Directional Spool Valves series and directs hydraulic flow to actuators in automated equipment. The valve is built in nominal size NG25 to fit manifolds using the ISO 4401-08-08-0-05 porting pattern, and its flow capacity reaches 450 l/min for high-volume circuits. Solenoid actuation relies on a 24 V DC coil, and wiring is completed through a DIN EN 175301-803 K4 plug. A concealed manual override identified by code N9 permits local shifting while shielding the button from accidental use. Pilot oil is supplied internally and returned externally through port Y, with reliable operation once the pilot line reaches 10.5 bar.
The valve withstands 280 bar at ports P, A, and B, 250 bar at port T, and 210 bar at port Y during direct-current service. Acceptable fluid temperature ranges from -20 °C to +80 °C, supporting standard mineral oil operation. System cleanliness must meet ISO 4406 class 20/18/15 to maintain spool accuracy and seal life. The assembled unit weighs 19.0 kg, which should be noted when mounting it on subplates or within machine frames.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Coil Voltage
24 V DC
Electrical Connection
DIN EN 175301-803 (K4)
Hydraulic Fluid Temp Max
+80 C
Hydraulic Fluid Temp Min
-20 C
Manual Override
Concealed (N9)
Max Flow
450 l/min
Max Pressure P/a/b
280 bar
Max Pressure Port T
250 bar
Max Pressure Port Y
210 bar (DC)
Min Pilot Pressure
10.5 bar
Nominal Size
NG25
Pilot Oil Return
External (Y)
Pilot Oil Supply
Internal
Porting Pattern
ISO 4401-08-08-0-05
Weight
19.0 kg
1620 Old Apex Road
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