Corrugated metallic gaskets, also known as corrugated metal gaskets or metal jacketed gaskets, are a type of gasket used for sealing applications in high-pressure and high-temperature environments. They consist of a metallic core with a corrugated or wavy profile, typically made of stainless steel, surrounded by a softer filler material such as graphite, PTFE, or other materials.

The corrugated metal core of these gaskets provides flexibility and resilience, allowing it to conform to irregularities in flange surfaces and maintain a tight seal even under extreme conditions. The corrugations or waves in the metal core increase the contact area between the gasket and the flange, enhancing sealing performance and resistance to leakage.

The filler material surrounding the metallic core serves to enhance the sealing properties of the gasket by providing a tight seal against the flange faces and compensating for any imperfections or irregularities. Common filler materials used in corrugated metallic gaskets include graphite, PTFE, and various elastomers.

Corrugated metallic gaskets are commonly used in industries such as oil and gas, petrochemical, chemical processing, power generation, and aerospace, where sealing performance is critical and operating conditions are demanding. They are particularly well-suited for applications involving high pressures, high temperatures, and corrosive fluids.

One of the key advantages of corrugated metallic gaskets is their ability to withstand extreme operating conditions while maintaining a reliable seal. The corrugated metal core provides excellent resilience and flexibility, allowing the gasket to adapt to changes in flange conditions and maintain sealing integrity.

However, like other gasket types, proper installation and selection of the appropriate materials are essential to ensure optimal performance and prevent leaks. Careful attention to installation procedures, including torque specifications and surface preparation, is necessary to ensure the effective sealing of corrugated metallic gaskets.