1. Categories:
Non - metallic gasket: with asbestos, rubber and synthetic resins made from non-metallic gaskets.
A layer of non - metallic jacket gasket: outsourcing of synthetic resin and other non-metallic gaskets.
Semimetallic gasket: made of metal and nonmetal materials gaskets, such as spiral wound gasket, metal-coated gasket.
A. Spiral wound gasket: it is a gasket formed by a v-shaped or w-shaped section of metal belt sandwiched with non-metal belt and spiral wound.
1) inner ring: a metal ring set inside the wound gasket.
2)outer ring: the metal ring set on the outer ring of the wound gasket.
B. metal-coated: metallic gasket with steel, aluminum, copper, nickel, or monel metal gasket, etc.
2. Application:
Winding gasket refers to use metal belt (usually v steel belt) and nonmetallic belt winding into the ring gasket, metal and nonmetal belt winding alternately, since it has good flexibility, widely used in petrochemical, chemical, electric power industries of flange sealing structure, according to the site, can be in gasket inner or outer layer and steel rings to locate or strengthened.