OTHER SEMI-METALLIC GASKETS
As their name goes, metal jacketed gaskets are manufactured by joining a metallic outer shell in to a metallic or a non-metallic filler. The filler material attributes resilience to the gasket while the metal jacket protects the filler and is in charge of withstandaing the pressures, temperatures and corrosion of the process. Metal jacketed gaskets are generally used for heat exchangers, pumps, and valves. They require a smooth flange surface finish, high bolt loads, and flat flanges to seal effectively.
Kammprofile gaskets, alternatively named "Grooved gaskets" or “Camprofile gaskets”, are used in many industrial applications as well as in power generation and nuclear (sealing of flanges or sealing of heat exchangers, superheaters and other pressure equipment). In general, Kammprofile gaskets are preferred in all cases when pressure and temperatures are constantly high and, therefore, strong bolt loads are involved. A Kammprofile gasket consists of a metal core (generally stainless steel) with concentric grooves on either side with sealing materials. The sealing layers can be graphite, PTFE, CAF or other non ferrous metals like Silver; Bronze and Aluminum, depending on the service conditions and process parameters.