Glossary

A kammprofile gasket (also spelled camprofile gasket) is a metal-core, serrated gasket designed for high-performance sealing in bolted flange joints. It consists of a machined metal ring (commonly stainless steel or other alloy) with concentric grooves/serrations on one or both faces, typically covered with a thin soft facing layer such as graphite or PTFE. When the joint is tightened, the soft facing conforms to flange surface imperfections while the serrated metal core concentrates compressive stress into the grooves, producing a tight, stable seal.

Kammprofile gaskets are used where you need reliable sealing under high pressure and/or temperature, thermal cycling, and vibration—common in refineries, chemical processing, power generation, and heat exchangers. Compared with many soft gaskets, they offer better blowout resistance and more consistent sealing with less sensitivity to minor flange surface damage. Compared with spiral wound gaskets, they often provide stronger recovery and stability during cycling and can be a preferred choice for heat exchanger pass partitions and other demanding flange geometries.

A key advantage is that the metal core is typically reusable if it isn’t damaged; in many cases the facing can be replaced rather than scrapping the entire gasket. Selection is usually based on the core material (matched to corrosion/temperature), facing material (graphite for high temperature, PTFE for chemical resistance), and the gasket style (ring type, heat-exchanger configurations, inner/outer guides as applicable). Proper performance still depends on achieving the required gasket seating stress with correct bolt load, flange finish, and tightening procedure—over-compression can damage facings, while under-load can lead to leakage, especially in cycling service.

AKA: Camprofile Gasket