Envelope Gaskets are produced in two
Milled and Slit
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