REXROTH 4WRA6 Series Proportional Directional Valve
Product Models
- 4WRA6WA07-2X/G24K4/V
- 4WRA6W07-2X/G24NJK31/V
- 4WRA6W30-2X/G24N9Z4/V
- 4WRA6W05-1X/24NZ4/MR
- 4WRA6WA30-2X/G24Z4/V (German Imported)
Technical Specifications
| Attribute |
Value |
| Processing & Customization |
Yes |
| Type |
Proportional Valve |
| Material |
Cast Steel |
| Brand |
REXROTH |
| Scope of Application |
Hydraulic System |
| Applicable Medium |
Oil Products |
| Applicable Temperature |
Normal Temperature (℃) |
| Nominal Pressure |
Normal Pressure (MPa) |
| Nominal Diameter |
6-way Diameter (mm) |
| Installation Type |
Threaded Installation |
| Operating Temperature |
Room Temperature |
| Type (Channel Location) |
Straight Through Type |
Related Models
- 4WREE10WA75-2X/G24K31/F1V
- 4WREE10WA50-2X/G24K31/F1V
- 4WREE10WA25-2X/G24K31/F1V
- 4WREE10EA75-2X/G24K31/F1V
- 4WREE10EA25-2X/G24K31/F1V
- 4WREE10W1-75-2X/G24K31/F1V
- 4WRZ10E50-7X/6EG24N9TK4/D3M
- 4WRZ10E85-7X/6EG24N9K4/D3M
- 4WRZ10E85-7X/6EG24N9EK4/M
- 4WRZ10E85-7X/6EG24N9EK4/D3M
- 4WRZ10E85-7X/6EG24N9TK4/M
- 4WRZ10E1-25-7X/6EG24N9EK4/M
- 4WRZ10E85-7X/6EG24N9TK4/D3M
- 4WRZ10E1-25-7X/6EG24N9K4/D3M
- 4WRZ10E1-25-7X/6EG24N9EK4/D3M
- 4WRZ10E1-50-7X/6EG24N9K4/D3M
- 4WRZ10E85-7X/6EG24N9K4/M
- 4WRZ10E85-7X/6EG24N9ETK4/M
- 4WRZ10E1-50-7X/6EG24N9K4/M
- 4WRZ10E1-50-7X/6EG24N9EK4/D3M
Frequently Asked Questions
Where is the 4WRA6 typically used?
This valve suits applications requiring precise hydraulic control, such as:
- Industrial machinery (e.g., presses, plastic injection molding)
- Mobile equipment (e.g., cranes, excavators)
- Systems needing directional and flow control without integrated electronics
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.
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
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
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.
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.
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.
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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