Bosch Rexroth | 4WE6J73-6XEG24N9K72LA12
4WE6J73-6X/EG24N9K72L/A12
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The 4WE6J73-6X/EG24N9K72L/A12 valve belongs to the WE Directional Spool Valves series and is manufactured by Bosch Rexroth for hydraulic automation systems. It mounts on subplates that comply with the ISO 4401-03-02-0-05 pattern, allowing quick integration with standardized manifolds. The valve can handle a maximum flow of 80 l/min, so circuits with moderate volume rates can be routed through the body without excessive pressure loss. Channels A, B, and P withstand operating pressures up to 350 bar to support high-pressure actuators. Electrical actuation is provided by a 24 V DC coil that draws 1.25 A and consumes 30 W of nominal power, while a ±10 % voltage tolerance keeps operation stable under minor supply variations. The coil surface temperature is limited to 120 °C to prevent insulation degradation during extended service.
Continuous duty is possible because the unit is specified for a 100 % ED duty cycle, meaning the solenoids may remain energized without cooling pauses. The maximum switching frequency of 4.2 cycles per second supports rapid directional changes in mobile or industrial machinery. An IP65 ingress protection rating seals the housing against dust and water jets, increasing reliability in harsh environments. Hydraulic cleanliness must be maintained at ISO 4406 20/18/15 so internal spool clearances are not obstructed by particulate matter. Return port T is limited to 210 bar, protecting the tank line from over-pressure events. With two solenoids installed, the assembly weighs 1.95 kg, which eases handling during maintenance. A mean time to dangerous failure of 300 years contributes to long service life in safety-related circuits.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Coil Surface Temperature Max
120 C
Duty Cycle
100% ED
Ingress Protection
IP65
Max Flow (dc)
80 l/min
Max Operating Pressure (a/b/p)
350 bar
Max Pressure (port T, Dc)
210 bar
Max Switching Frequency (dc)
4.2 1/s
Mounting Interface
ISO 4401-03-02-0-05
Mttfd
300 years
Nominal Power (dc)
30 W
Nominal Voltage
24 V DC
Rated Current (24 V Dc)
1.25 A
Voltage Tolerance
±10%
Weight (two Solenoids)
1.95 kg
1620 Old Apex Road
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