PTFE gaskets are excellent in applications involving solvents, cor-rosive chemicals and high temperatures. There are different types of PTFE gaskets for each particular sealing application: ring, full face, flange and envelope gaskets.

A PTFE envelope gasket is a gasket that is split or machined from the outside diameter wall to 1/16 of an inch from the inside diameter. Envelope gaskets can be supplied slit/v-type or milled/square cut with or with out a filler. A ring gasket has a thickness, inside and outside dimension. A full face gasket has a thickness, inside and outside dimension along with bolt holes. A flange gasket is primarily the same as a full face without the bolt holes. These gaskets are available in standard and metric pipe sizes up to 60" outside diameter.