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Auto Drain Valve for Irrigation - China Suppliers & Factory | Prevents Pipe Damage and Ensures Reliability
Product Description
Automatic System Protection
RAIN LING Auto Drain Valve Series (VX75) is engineered to protect irrigation systems by automatically draining water from pipes when pressure falls below a safe threshold.
Installed at the lowest points of a line or near the sprinklers, this valve helps prevent water accumulation that can lead to pipe damage or freezing issues.
Its compact structure and durable materials make it suitable for both residential and commercial irrigation networks. The valve operates automatically — no manual intervention required — offering consistent reliability and system efficiency.
Product Specifications
| Item | Description |
|---|---|
| Model | VX75 |
| Connection Size | 1/2 in. MPT |
| Maximum Pressure | 8.5 bar |
| Maximum Flow | 0.23 m³/h |
| Average Opening Pressure (Vertical) | 0.2 bar |
| Average Closing Pressure (Vertical) | 0.4 bar |
| Diameter | 3.0 cm |
| Height | 2.5 cm |
| Material | Engineering Plastic |
| Installation Position | Vertical (at pipe low points) |
Detail Display
Frequently Asked Questions
What is the main function of the VX75 Auto Drain Valve?
The RAIN LING Auto Drain Valve (VX75) is designed to protect irrigation systems. It automatically drains water from the pipes when system pressure drops below a safe threshold, preventing pipe damage and freezing issues.
Where should this auto drain valve be installed?
For optimal performance, the valve should be installed vertically at the lowest points of the pipeline or near the sprinklers where water is most likely to accumulate.
What are the opening and closing pressure ratings for the VX75?
When installed vertically, the valve has an average opening pressure of 0.2 bar and an average closing pressure of 0.4 bar.
What material is the drain valve made of, and is it durable?
The VX75 Auto Drain Valve is constructed from high-quality Engineering Plastic, ensuring a compact structure and durability suitable for both residential and commercial irrigation networks.
Does the valve require manual operation to drain the water?
No, the valve operates fully automatically without requiring any manual intervention, ensuring consistent reliability and hassle-free system efficiency.





