4WRZ10W9-85-70/6EG24N9EK4/M
4WRZ10W6A25-70/6EG24N9K4/D3M
4WRZ10W6A50-70/6EG24N9K4/M
4WRZ10W6A25-70/6EG24N9K4/M
4WRZ10W9-85-70/6EG24N9K4/D3M Servo valve Rexroth German hydraulic valve

FAQ:

How do I select the right model?

Model codes indicate specifications (e.g., 4WRA6E07-2X/G24N9K4/V):

• 4WRA6: Series and size (NG6).

• E07: Spool type and control configuration.

• G24N9K4: 24V DC supply, corrosion-resistant coating .

Consult REXROTH datasheets or suppliers for exact requirements like flow rate, spool type, and electrical inputs .

6. What are critical installation notes?

• Use the specified subplate (ISO 4401) to avoid leakage .

• Ensure the tank line is never unloaded; a pre-load valve (~2 bar) may be required .

• Verify electrical connections (e.g., 24V DC) and coil compatibility .

7. How is maintenance handled?

• Regularly check for spool sticking or contamination.

• Clean filters and monitor hydraulic fluid quality.

• Replace coils or seals if movement is sluggish .

8. What if the valve fails to respond?

• Check power supply to the solenoid .

• Inspect for debris blocking the spool .

• Verify external amplifier signals (if used) .

If issues persist, contact technical support.

9. Can the 4WRA6 be used in hazardous environments?

Yes, certain models are designed for explosive atmospheres (e.g., corrosion-resistant, certified coils) . Confirm model suffixes like "K4" for environmental suitability .

10. Where can I find technical support?

REXROTH distributors or official service centers provide documentation, troubleshooting, and spare parts. Include the full model code when seeking help .

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Summary

The 4WRA6 series offers reliable proportional control for hydraulic systems. Proper selection, installation, and maintenance are key to performance. Always refer to manufacturer guidelines for specific use cases .

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