PTFE lined type butterfly valve is one type of central lined butterfly valve, which is one normal type of butterfly valve in need of big quantity. PTFE lined butterfly valve is mounted between two matching flanges of the piping with bolts and nuts.
A high-performance PTFE lined butterfly valve is a quarter-turn valve best suited for handling large amounts of liquids or gases. PTFE lined butterfly valves are easy to handle and are used in many flow control and throttling applications.