The fluorine-lined valve adopts the lining process for all the places where the medium in the valve body can reach. The lining material is generally made of fluoroplastics such as FEP (F46) and PCTFE (F3), which can be applied to various concentrations of sulfuric acid, hydrochloric acid, and hydrofluoric acid. , aqua regia and various organic acids, strong acids, strong oxidants and other corrosive media pipelines, but fluorine-lined valves are relatively limited by temperature (only suitable for media between -50°C and 150°C). The valves lined with fluorine plastics are: fluorine lined butterfly valve, fluorine lined ball valve, fluorine lined globe valve, fluorine lined diaphragm valve, fluorine lined gate valve, fluorine lined plug valve, etc.