PTFE Lined Plug Valve

A PTFE lined plug valve is a quarter-turn rotary isolation valve featuring a heavy-duty metallic body (such as ductile iron or carbon steel) completely lined with a thick, chemically inert Polytetrafluoroethylene (PTFE) or PFA sleeve surrounding the rotating plug. The seamless fluoropolymer barrier prevents aggressive acids, strong alkalis, and toxic solvents from coming into contact with the metal body, while the self-lubricating PTFE sleeve enables friction-free, non-stick plug rotation without requiring external lubrication. Conforming to standards such as API 599, ASME B16.34, and ISO 5752, these severe-corrosion valves are primary specifications in chlor-alkali production, chemical acid recovery, and toxic fluid handling, allowing chemical process engineers to ensure leak-free, non-contaminating service by importing certified PTFE lined plug valves directly from specialized manufacturers in China via our advanced B2B commercial platform.