PTFE Lined Valve Installation: Flange Alignment, Gaskets and Bolt Tightening
Quick Summary: Correct PTFE lined valve installation starts with undamaged lining, aligned mating flanges and an approved sealing arrangement. Some lined joints seal without an additional gasket; other interfaces require one. Bolt tightening must follow the supplied valve’s instructions for the actual flange, fasteners and lubrication condition. Do not use bolts to pull misaligned pipework […]