Essence: An automatic valve installed through a clamp connection method, which uses the flow pressure of the medium itself to control the opening and closing. It is mainly used to prevent the backflow of the medium in the pipeline and belongs to the category of check valves and one-way valves.

Core features:

Compact structure: The valve body and pipeline are connected by clamp type flanges, which are small in size and light in weight. They are composed of core components such as the valve body, valve disc, and spring;

Automatic opening and closing: When flowing forward, the valve disc is opened by the pressure of the medium, and when flowing backward, it quickly closes by gravity/spring force to block backflow;

Low flow resistance design: Some models use streamlined valve bodies or full bore structures to reduce head loss and improve flow efficiency.

Typical applications: municipal water supply and drainage pipelines, industrial circulation systems, HVAC engineering, and water pump outlets that require prevention of medium backflow and pump reversal.