Cathodic Protection Flange Insulating Gaskets are used for controlling losses due to corrosion. They can be used to control stray electric currents in piping at oil,
gas, water, refinery, and chemical plants, to increase the effectiveness of cathodic protection systems.
Type E (full face) insulating gasket kit provides complete protection of both flange faces. The gasket has same outside diameter of flanges. This feature will prevent
collection of foreign matter between the flange faces to ensure complete cathodic isolation.
Type F (ring gasket) insulating gasket is manufactured to fit only the raised face surface of the flanges. Outside diameter of the gasket is designed to be slightly less
than the inside diameter of the bolt circle. It is recommende that the flanges be wrapped to prevent foreign material from "shorting out" the flanges.