Bosch Rexroth | 4WE6G73-6XEG24N9K4A12
4WE6G73-6X/EG24N9K4/A12
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The 4WE6G73-6X/EG24N9K4/A12 directional spool valve is produced by Bosch Rexroth within the WE Directional Spool Valves series. The unit routes hydraulic flow in automation circuits that require reliable on/off control. It fits subplates using the ISO 4401-03-02-0-05 porting pattern, allowing interchange with common CETOP-03 manifolds. A maximum operating pressure of 350 bar at ports P, A, and B lets the valve handle high-pressure supply lines, while a peak flow capacity of 80 l/min maintains adequate volume for medium size actuators. The electromagnetic pilot is designed for a nominal voltage of 24 V DC so it can tie directly into standard machine control power, and the coil draws 1.25 A at that voltage which simplifies fuse selection. Nominal power consumption is 30 W, limiting heat generation during continuous duty. A duty cycle of 100 percent in S1 operation supports nonstop actuation without thermal rest, and a voltage tolerance of ±10 percent keeps performance stable under minor supply fluctuations.
For electrical durability the solenoid winding is built to Class F insulation, and its surface temperature may reach up to 120 °C without degrading materials. The hydraulic circuit must maintain oil cleanliness to ISO 4406 code 20/18/15 to protect the precision spool lands from wear. Environmental sealing reaches IP65 so the valve withstands dust and low-pressure water jets in industrial wash-downs. A manual override sustains function up to 50 bar, enabling safe testing when the coil is de-energized. The tank port tolerates 210 bar, which prevents cavitation when back-pressure rises. The spool can shift up to 4.2 times per second, providing adequate response for moderate cycling machinery, and an internal suppressor limits switch-off overvoltage to 500 V to protect drive electronics. These characteristics complete the operational profile of the valve for hydraulic machinery.
Technical Specifications
Cleanliness Class (iso 4406)
20/18/15
Coil Surface Temp Max
120 °C
Duty Cycle
100% (S1)
Insulation Class (dc)
Class F
Ip Rating (k4)
IP65
Manual Override Pressure Limit
50 bar
Max Switch-off Overvoltage
500 V
Max Switching Frequency (dc)
4.2 1/s
Maximum Flow (dc)
80 l/min
Maximum Operating Pressure (p, A, B)
350 bar
Maximum Tank Port Pressure (dc)
210 bar
Nominal Power (dc)
30 W
Nominal Voltage
24 V DC
Porting Pattern
ISO 4401-03-02-0-05
Rated Current (24 V)
1.25 A
Voltage Tolerance
±10%
1620 Old Apex Road
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