Lined Flanged Butterfly Valve

The Lined Flanged Butterfly Valve is a high-performance butterfly valve primarily characterized by a lining of fluoroplastic (such as PTFE, FEP, PFA, and other polymer materials) on the internal surfaces of all wetted parts, including the valve body, disc, and stem, and featuring flanged connections. This design provides exceptional corrosion resistance, allowing the valve to effectively withstand the erosion of most chemical media, including strong acids, alkalis, organic solvents, and strong oxidizing agents. The flanged connection ensures the firmness and reliable sealing between the valve and the pipeline. Lined flanged butterfly valves combine the advantages of simple structure, small size, flexible operation, and quick opening/closing inherent in butterfly valves, while addressing the issue of traditional metal valves being susceptible to damage in corrosive media. They are widely used in chemical, petroleum, power generation, pharmaceutical, and food industries where strict control of corrosive media is required.