Circular plug valve is a type of plug valve that is distinguished based on the shape of the pipeline. There are usually two types of plug valves: square and circular. Square plug valves are mainly used in water conservancy and smoke and air pipelines, while circular plug valves are mainly used in pipelines for water conservancy and powder slurry media. In fact, the structure and working principle of circular plug valves and knife gate valves are the same, so they can be replaced by each other in some situations. The diameter of circular plug valves can be as small as DN50 and as large as DN2000. Currently, they are mainly suitable for fields such as steelmaking, power generation, papermaking, and mining.

The structure and principle of the pneumatic circular plug valve: This valve has a simple structure, flexible operation, light weight, and no blockage. It is particularly suitable for conveying and adjusting the flow rate of various solid materials, blocks, and block materials of about 50mm. Installation is not limited by angle, easy to operate, and you can adjust the proportion at any time. It is mainly composed of frames, gates, screws, nuts, etc. The purpose is to open and close the gate by manually rotating the handwheel and horizontally reciprocating the screw nut and gate on the screw.