4WRA10WA30-22/G24K4/V
4WRAE6E07-22/G24K31/A1V
4WRAE6W15-22/G24K31/A1V German made Rexroth servo hydraulic solenoid valve directional valve

FAQ:

1. How to adjust the flow rate of a 4WREE valve?
Flow rate is adjusted by varying the input control signal: increasing the signal (e.g., from 4 mA to 20 mA) increases flow, while decreasing the signal reduces flow.

2. What is the response time of 4WREE valves?
Typical response time (rise time from 10% to 90% of full flow) is 15-30 ms for NG 6-10 models and 30-50 ms for larger NG 16-25 models.

3. Can 4WREE valves be operated manually in case of electrical failure?
Yes, most models are equipped with a manual override (screwdriver or lever type) to actuate the valve mechanically during emergencies.

4. What is the purpose of the integrated electronics (IPE) in some 4WREE models?
The integrated electronics provide signal amplification, current limiting, short-circuit protection, and diagnostic functions to optimize valve performance and reliability.

Troubleshooting

5. Why is the 4WREE valve not responding to control signals?
Common causes include: no power supply to the solenoid, damaged wiring, incorrect control signal (e.g., 0-5 V instead of 0-10 V), or a faulty solenoid coil. Check wiring continuity and signal levels first.

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