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One way valve is a mechanical device used to allow liquid or gas to flow in only one direction and prevent reverse flow, thereby protecting pipes, pumps, and other equipment in the system. The valve is designed according to industrial standards, operates completely automatically without control action, ensuring safety and stability during use.
Highlights:
Fully automatic operation: Opens when there is forward flow and closes automatically when reverse flow occurs, helping to prevent water hammer and system failure.
Solid structure – high tightness: Valve body made of cast iron, copper, steel or stainless steel; sealing surface is precisely machined, anti-leakage.
Diverse types: check valve, spring (cap), butterfly, ball... suitable for different purposes.
Easy to install and maintain: Compact design, threaded and flanged, suitable for many industrial and civil systems.
Application:
Water supply and drainage system, fire prevention and fighting (PCCC)
Industrial pipes, compressed air, steam
Water treatment plant, food, pharmaceutical, oil and gas
Industrial and civil pumps (pump protection against backflow)
| Parameter | Standard value |
|---|---|
| Working pressure | PN10 – PN40 |
| Working temperature | -10°C to 220°C (depending on material) |
| Valve body material | Cast iron, copper, steel, stainless steel 304/316 |
| Gasket material | EPDM, NBR, Teflon, metal |
| Connection size | DN15 – DN300 |
| Connection type | Internal thread, flange, wafer |
| Valve type | Leaf, spring disc, butterfly, ball, lift - lower |
| Application of medium | Water, compressed air, steam, oil, chemicals |
| Origin | Italia, Japan, Korea, China… |
