Bosch Rexroth | 4WEH22J7X6EG24NETSK4B10-CSA
4WEH22J7X/6EG24NETSK4/B10 CSA
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The 4WEH22J7X/6EG24NETSK4/B10 CSA valve belongs to the WEH Directional Spool Valves series and is manufactured by Bosch Rexroth. It is an electro-hydraulic unit that shifts a NG25 spool to route pressure and tank lines in automated hydraulic machinery. The J spool symbol defines its flow paths, and a maximum flow rate of 450 l/min supports large-volume actuator circuits. A maximum operating pressure of 280 bar lets the main stage work in high-pressure systems without derating. The porting pattern conforms to ISO 4401-08-08-0-05, allowing direct mounting on standard subplates. Electrical power is supplied at 24 V DC, and the coil connects through a DIN EN 175301-803 plug for straightforward wiring. These characteristics permit compact installation and high throughput in industrial motion control.
Pilot operation is limited to 210 bar and must not drop below 10.5 bar, setting the usable range for the control stage. Pilot oil is taken internally from port P and returned internally to port T, so no external pilot lines are required. Switching time can be trimmed by adjusting the supply control, while a Ø1.0 mm throttle insert moderates pilot flow for stable response. The valve withstands fluid temperatures up to 80 °C, accommodating typical mineral oils and many synthetics. System fluid must meet ISO 4406 class 20/18/15 cleanliness to protect the precision edges of the spool. These parameters complete the functional envelope and help integrators size power units, piping, and filtration for reliable service.
Technical Specifications
Actuation
Electro-Hydraulic
Cleanliness Class
ISO 4406 20/18/15
Electrical Connection
DIN EN 175301-803
Fluid Temperature Max
80 C
Max Flow (symbol J)
450 l/min
Max Operating Pressure
280 bar
Max Pilot Pressure
210 bar
Minimum Pilot Pressure
10.5 bar
Nominal Size
NG25
Pilot Oil Return
Internal (to T)
Pilot Oil Supply
Internal (from P)
Porting Pattern
ISO 4401-08-08-0-05
Spool Symbol
J
Supply Voltage
24 V DC
Switching Time Adjustment
Supply Control
Throttle Insert
Ø1.0 mm
1620 Old Apex Road
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