4WRZ32W6-520-70/6EG24N9TK4/M 4WRZ32W6-520-70/6EG24N9ETK4/D3M 4WRZ32W6-520-70/6EG24N9ETK4/M Directional valve Rexroth German made proportional hydraulic electro-hydraulic solenoid valve

4WRZ32W6-520-70/6EG24N9TK4/M
4WRZ32W6-520-70/6EG24N9ETK4/D3M
4WRZ32W6-520-70/6EG24N9ETK4/M Directional valve Rexroth German made proportional hydraulic electro-hydraulic solenoid valve

FAQ:

1. How does the proportional control work on 4WRZ valves?
The electric input signal (e.g., 0-10 V) activates the proportional solenoid, which moves the pilot spool; pilot oil pressure then displaces the main spool proportionally to the input signal .

2. What input signal types are compatible with 4WRZ valves?
Analog signals (e.g., ±10 V) are standard; some variants with integrated electronics (OBE) may support digital signals .

3. How to adjust the flow rate of a 4WRZ valve?
Modify the electrical input signal amplitude; flow rate increases proportionally with signal strength (within the valve’s maximum flow rating) .

4. What happens if the electrical input signal is interrupted?
The solenoids de-energize, and centering springs return the main spool to the central position, stopping flow to working ports .

5. How to reverse flow direction with a 4WRZ valve?
Activate the opposite proportional solenoid (e.g., solenoid "A" for P→A/B→T, solenoid "B" for P→B/A→T) .

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