Available also in oval shapes and larger sizes. These gaskets are successfully used in chemical plants, glass/glass lined equipment due to their high temperature, corrosion and ageing resistance.

Envelope Gaskets are produced in two forms:
Milled and Slit forms

Milled type envelope 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 envelope 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.