PTFE Gaskets - Envelope / Solid

These gaskets are successfully used in chemical plants, glass/glass lined equipment due to their high temperature, corrosion and ageing resistance. Envelop Gaskets are produced in two forms:-

Milled and Slit forms
Milled type envelop is perhaps the better of the two since it is made to fit the insert and presents a flat face to the flange.
The Slit type is perfectly adequate for many applications where cost is a major consideration. The envelop in this variety does not present a full face to the flange.
Solid Gaskets can be made to order in different types of shapes and sizes.