4WREE10WA50-2X/G24K31/A1V
4WREE10E50-2X/G24K31/F1V
4WREE10V75-2X/G24K31/F1V German Rexroth proportional hydraulic solenoid directional valve

FAQ:

1. Q: Can the 4WRZ10 be mounted in a manifold?
A: Yes, it is compatible with manifold mounting (ISO 4401 manifolds) for space-saving and centralized hydraulic system designs.

2. Q: How to prevent leakage at the hydraulic connections?
A: Use O-rings or flat gaskets (compatible with hydraulic fluid) and ensure proper port cleaning before assembly; avoid over-tightening bolts.

3. Q: What is the correct way to connect the drain port (if applicable)?
A: The drain port (marked “R” or “L”) should be connected to the tank with minimal backpressure (< 3 bar) to ensure proper solenoid cooling and seal lubrication.

4. Q: Does the 4WRZ10 require a bypass valve for startup?
A: A bypass valve is not mandatory but recommended to flush the system before commissioning, removing contaminants that may damage the valve.

5. Q: How to verify the electrical wiring of the 4WRZ10?
A: Check for correct polarity (solenoid +/-, feedback signals), continuity, and insulation resistance (> 1 MΩ) using a multimeter; refer to the wiring diagram in the manual.

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