The fully lined fluorine butterfly valve is suitable for use in pipelines with various concentrations of aqua regia, sulfuric acid, hydrochloric acid, hydrofluoric acid, and various organic acids, strong acids, and strong oxidants. It is also suitable for use in pipelines with various concentrations of strong alkaline organic solvents, as well as other corrosive gases and liquid media. It is to place polytetrafluoroethylene resin on the inner wall of steel or iron valve pressure parts or the outer surface of valve internals by molding embedding method.

Fully lined fluorine butterfly valve: 1. The center line butterfly valve is a butterfly plate and valve seat that are concentric within a 360 ° circumference (center line), with bidirectional sealing function, and pressure and flow can be freely adjusted; 2. Adopting adjustable elastic pin positioning. Accurate positioning and simple structure.

3. Four level loading elastic seal ensures absolute zero leakage inside and outside the valve; a、 The special transition curve at the connection between the shaft head and the butterfly plate circumference and the reasonable interference fit of the valve seat; b、 The end face of the shaft head adopts a combination of elastic O-ring, rigid washer at the shaft shoulder, and elastic rubber pad; c、 The radial direction of the shaft adopts a combination of O-ring and metal pad; d、 The valve seat is embedded in the groove of the valve body with elastic strips.