There are many types of plastic butterfly valves, such as electric plastic butterfly valves and pneumatic plastic butterfly valves, each with its own characteristics.

Electric plastic butterfly valve, also called PVC electric butterfly valve, consists of an integrated electric actuator and a plastic butterfly valve. This kind of valve is light in weight and highly corrosion-resistant, and is widely used in many fields, such as general pure water and drinking water piping systems, drainage and sewage piping systems, salt water and seawater piping systems, acid-base and chemical solutions system etc. Its sealing performance is tight, its service life is ultra-long, and it is easy to operate. It is suitable for occasions that require reliable sealing and good adjustment characteristics. The valve body adopts a split type, and the sealing at both ends of the valve shaft is controlled by adding fluorine rubber to the rotating base surface between the butterfly plate and the valve seat to ensure that the valve shaft does not come into contact with the fluid medium in the cavity.

Pneumatic plastic butterfly valves are available in a variety of plastic materials, such as UPVC, PP, PPH, CPVC, PVDF, etc. This kind of valve is corrosion-resistant and suitable for pipelines with relatively large diameters. The connection is made by clamping flanges at both ends to facilitate disassembly and maintenance. The working principle is to drive the rotation of the valve ball through the 90-degree rotation of the pneumatic actuator to achieve the circulation, blocking and flow regulation of the medium. It has the advantages of compact structure, small size, reliable operation, good sealing, easy maintenance, convenient installation, and strong adaptability.