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The 4WRZ10E50-7X/6EG24N9ETK4/D3M valve belongs to the WRZ Proportional Directional Valves series from Bosch Rexroth and meters flow and direction for hydraulic actuators. It is energized with a 24 V DC supply so the solenoid can move the spool in proportion to command signals. A coil resistance of 4.8 Ω at 20 °C establishes the baseline current draw, while a maximum coil current of 1.5 A delivers full stroke without overheating. Continuous duty is supported by a 100 % duty cycle, allowing the valve to stay energized indefinitely. Electrical connection is made through a DIN EN 175301-803 plug, and an IP65 enclosure rating keeps dust and low-pressure water jets from reaching internal parts. The unit handles hydraulic mineral oils of the HL or HLP types, and NBR seals ensure compatibility with these fluids. In the main ports the valve tolerates operating pressures up to 315 bar, provided the oil cleanliness is held to class 20/18/15 per ISO 4406.
Thermal rise increases coil resistance to 7.2 Ω at maximum temperature, which limits current and protects winding insulation. The internal pilot stage accepts pressures up to 315 bar so the spool remains controllable even in high-pressure systems. Return flow in port T must stay below 30 bar to prevent back-pressure that could disturb spool positioning. When the pressure drop across the metering notches is 10 bar, the valve passes a nominal flow of 50 L/min to actuators, and the pilot circuit consumes 3.5 L/min as the command shifts from 0 % to 100 %. A mass of 7.8 kg allows installation without special lifting aids while still providing the rigidity needed for precise hydraulic control.
Cleanliness Class (main)
20/18/15 (ISO 4406)
Coil Resistance (20 °c)
4.8 Ω
Coil Resistance (max Hot)
7.2 Ω
Duty Cycle
100%
Electrical Connector
DIN EN 175301-803
Fluid Type
Mineral Oil (HL, HLP)
Max Coil Current
1.5 A
Max Operating Pressure (main)
315 bar
Max Pilot Pressure (internal Supply)
315 bar
Max Port T Pressure (internal Drain)
30 bar
Nominal Flow (Δp 10 Bar)
50 L/min
Pilot Oil Flow (step 0–100%)
3.5 L/min
Protection Class
IP65
Seals
NBR
Supply Voltage
24 V DC
Weight
7.8 kg
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