PTFE Gasket specification ring gasket, cut gasket, solid ring gasket are available in 1.5mm, 2mm & 3mm, 4mm, 5mm thick. Gaskets are manufactured to suite different flange standard like; E/F table, ANSIB-16.5-150, 300 & 600. Class flange, “DIN” standard flanges from 1/2” NB (15NB) to 28” NB. PTFE gaskets are available in raise face size & full face size. PTFE gaskets are also available as per client drawing specification.