Application range of graphite gaskets

Graphite-reinforced gaskets are made from flexible graphite sheets, with metal or non-metallic foils, meshes, or fabrics used as reinforcing materials. These materials are first combined into a reinforced sheet through special manufacturing processes, and then shaped by stamping or precision cutting. Operating temperature: -200~+650°C (for steam) – 200~+450°C (for air). ◆ Applicable pressure: 0~130 bar. ◆ pH value: 0~14 (except for strong oxidizing agents). Media: hot water, high-temperature and high-pressure environments, steam, hydrogen, ammonia-based solvents, carbamates, and low-temperature liquids. What you might be referring to is a metal wound gasket; the operating temperature range for flexible graphite strips is -270~870 degrees for non-oxidizing media, and -270~600 degrees for oxidizing media. It is possible to choose different types of strips depending on the requirements. For applications requiring high temperatures, ceramic fibers can be used. The non-metallic materials used in wound gaskets serve to provide sealing; therefore, they must possess resistance to high temperatures and pressures, as well as stable chemical properties. Non-metallic materials mainly include flexible graphite, polytetrafluoroethylene, asbestos, asbestos-free materials, mica paper, ceramics, and so on. Wavy gasket: This type of gasket combines the strength of metal with the elastic properties of wavy structures; it can withstand temperatures up to 650 degrees and pressures up to 26 MPa. It is particularly suitable for applications involving high temperatures, high pressures, or fluctuations in pressure and temperature. Therefore, metal wound gaskets can certainly be used at 450 degrees, depending on factors such as the temperature of the pressure-bearing medium.