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The 4WE6W73-6X/EG24N9DK24L2/VSO43A-1791 CSA valve is built by Bosch Rexroth within the WE Directional Spool Valves series to switch hydraulic flow in automated machinery. It mounts to a subplate through the ISO 4401-03-02-0-05 pattern and secures with a 42 mm clamping length, matching the NFPA D03 port layout for compatibility with common industrial manifolds. With both solenoids installed the unit weighs 1.95 kg, a mass that permits single-person handling. The pressure boundary withstands 350 bar on pressure and work ports and 210 bar on the tank return, enabling use in high-pressure circuits. A rated flow of 80 l/min supports medium-sized actuators, while required oil cleanliness of ISO 4406 20/18/15 limits particle contamination. The enclosure carries an IP65 rating so dust and low-pressure water jets do not affect solenoid operation.
Electrical actuation is supplied by a 24 V DC coil that draws 30 W at nominal conditions and tolerates ±10 % voltage variation without performance loss. The winding is designed for a 100 % ED duty cycle, meaning it can remain energized continuously while the coil surface stays below the 120 °C limit, preventing thermal degradation of insulation. Rapid cycling is possible because the valve can switch up to 4.2 times per second in direct-current service, allowing precise on-off flow control. Wiring is simplified by an M12×1 four-pole connector that provides both power and ground conductors. A concealed manual override designated N9 lets technicians shift the spool during commissioning or when power is unavailable.
Clamping Length
42 mm
Coil Voltage
24 V DC
Connector Interface
M12x1 4-Pole
Duty Cycle
100% ED
Fluid Cleanliness
ISO 4406 20/18/15
Ingress Protection
IP65
Manual Override
Concealed (N9)
Max Coil Surface Temperature
120 °C
Max Flow (dc)
80 l/min
Max Operating Pressure (p,a,b)
350 bar
Max Tank Port Pressure (t)
210 bar
Mounting Interface
ISO 4401-03-02-0-05
Nfpa Port Size
D03
Nominal Coil Power
30 W
Switching Frequency (dc)
4.2 1/s
Valve Weight (two Solenoids)
1.95 kg
Voltage Tolerance
±10%
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