The PTFE-lined butterfly valve adopts a PTFE-lined butterfly plate with a spherical sealing surface. The valve is easy to operate, has tight sealing performance, and a long service life; it can be used for quick cut-off or flow adjustment. Suitable for occasions requiring 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 the rotating base surface between the butterfly plate and the valve seat plus fluorine rubber; to ensure that the valve shaft does not contact the fluid medium in the chamber. Widely applicable to the transportation of liquids and gases (including steam) in various types of industrial pipelines, and the use of severe corrosive media, such as: sulfuric acid, hydrofluoric acid, phosphoric acid, chlorine, strong alkali and other highly corrosive media .
