4WRA6E10-1X/24Z4/M
4WRA6E20-1X/24Z4/M
4WRA6E05-1X/24NZ4/M
4WRA6E20-1X/24NZ4/M
4WRA6E10-1X/24NZ4/M Rexroth proportional directional valve German original hydraulic directional valve

FAQ:

What are the key technical specifications?

• Maximum Operating Pressure: Up to 350 bar for P, A, B ports .

• Maximum Flow: Varies with model (e.g., 42 L/min for some 4WRAE6 models) .

• Recommended Fluid Cleanliness: ISO 4406 20/18/15 .

• Voltage: Typically 24 V DC .

6. What are common applications for the 4WRA6 valve?

These valves are used in various industrial hydraulic systems requiring precise control, such as:

• Plastic injection molding machines .

• Presses and bending machines .

• Mobile equipment.

• Industrial automation systems where proportional control of speed and direction is needed.

7. What are common troubleshooting issues?

Common problems and their potential causes include :

• Valve does not shift or responds slowly: Check solenoid coil for burnout or open circuit; check power supply voltage; check for contamination causing the spool to stick.

• Internal Leakage: Worn spool or seals, or contamination causing improper sealing .

• Valve sticking: Often due to inadequate fluid cleanliness, insufficient lubrication, or internal damage .

• Excessive noise: Can be caused by excessive vibration, voltage fluctuations, or issues with the solenoid .

• No function despite signal: Check the amplifier (for 4WRA), wiring, and connections between the control unit and the valve .

8. What maintenance is required?

• Regularly check the solenoid coils and valve spool for wear .

• Maintain fluid cleanliness to prevent contamination, which is a primary cause of valve failure. Ensure the filtration system is functioning properly .

• Periodically inspect electrical connections and seals.

Note: For specific technical details, ordering information, or detailed troubleshooting for your application, always refer to the official REXROTH technical documentation or contact a certified supplier. The information provided here is for general reference based on public sources.