The components of a lined ball valve include the body, stem, ball, seat, and lining.   High-quality PFA or PTFE is used to line the interior, and this provides good protection against chemical corrosion. This makes these valves suitable for particularly unpleasant tasks.   These valves are widely popular as “Shut Off” because some kinds … Continue reading How to differentiate between PTFE lined valve and PFA lined valve? →