Backflow preventer (LHS41X-92C) DN50-DN300

product description:

A backflow preventer is a commonly used pipeline device used to prevent fluid from backflowing in pipelines. It is widely used in water supply, drainage, petroleum, chemical industry, energy and other industries.

The working principle of the backflow preventer is through the setting of the valve. When the fluid flows normally, the valve automatically opens and the fluid can pass smoothly; when the fluid reverses, the valve automatically closes to prevent the fluid from flowing back.

There are many design structures of backflow preventers, the most common of which are baffle type and plug-in type. The baffle type backflow preventer is suitable for pipes with smaller diameters and has the characteristics of small size, light weight and easy installation. The plug-in backflow preventer is suitable for pipes with larger diameters and has the characteristics of good sealing, low resistance and long service life.

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