- \n
- Long-term temperature resistance -200\u00b0C to +550\u00b0C<\/strong><\/li>\n\n\n\n
- Maximum operating pressure 200 bar<\/strong><\/li>\n\n\n\n
- Excellent chemical resistance and stability<\/li>\n\n\n\n
- Low permeability \u2013 gas permeability<\/li>\n\n\n\n
- More about graphite, gasket manufacturing possibilities, and its applications can be found below.<\/li>\n<\/ul>\n\n
Expanded Graphite<\/h2>\n\n
Graphite is available in several material variants, but the most commonly used type is expanded graphite reinforced with a stainless steel insert, which improves the material’s resistance and surface load and, especially in small thicknesses, reduces brittleness and improves handling.<\/p>\n\n
Basic Material Properties for Gasket Manufacturing<\/h3>\n\n
Composition<\/td> Expanded natural graphite (graphite content >99%) Stainless steel insert AISI 316 with a thickness of 0.1 mm <\/td><\/tr> Color<\/td> Black<\/td><\/tr> Certifications and Approvals<\/td> BAM (oxygen) | DNV GL | DVGW DIN 30653 (5 bar) | DVGW DIN 3536-6 | FIRE SAFE API607<\/td><\/tr> Standard Sheet Size<\/td> 1000 x 1000 mm | 1500 x 1500 mm<\/td><\/tr> Available Thicknesses<\/td> 1.0 mm | 1.5 mm | 2.0 mm | 3.0 mm<\/td><\/tr> Minimum Long-term Temperature<\/td> 200 \u00b0C \/ -238 \u00b0F<\/td><\/tr> Maximum Long-term Temperature<\/td> 550 \u00b0C \/ 1022 \u00b0F<\/td><\/tr> Maximum Operating Pressure<\/td> 200 bar<\/td><\/tr><\/tbody><\/table><\/figure>\n\n Operating Pressure Depending on Operating Temperature<\/h3>\n\n
\n\n![\"\"](\"https:\/\/reontech.cz\/wp-content\/uploads\/2025\/09\/Tekutiny-400x264-1.webp\")
Fluids<\/figcaption><\/figure>\n<\/div>\n\n\n\n \n![\"\"](\"https:\/\/reontech.cz\/wp-content\/uploads\/2025\/09\/Paraplyny-400x264-1.webp\")
Steam, gases<\/figcaption><\/figure>\n<\/div>\n\n\n\n \n![\"\"](\"https:\/\/reontech.cz\/wp-content\/uploads\/2025\/09\/Agresivni-oleje-1-400x264-1.webp\")
Aggressive oils<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n Graphite Gaskets and Their Use in Industry<\/h2>\n\n
Graphite gaskets are key components in industrial applications where high demands are placed on sealing, thermal resistance, and chemical stability. Due to their unique properties, including high thermal resistance, chemical resistance, and the ability to adapt to irregular surfaces, graphite gaskets find wide application in various industrial sectors. <\/p>\n\n
Properties of Graphite Gaskets<\/h3>\n\n
Graphite gaskets are made from expanded graphite, a material with exceptional physical and chemical properties:<\/p>\n\n
- \n
- Thermal Resistance<\/strong> \u2013 Graphite gaskets can withstand temperatures up to 3000 \u00b0C in an inert environment and approximately 550 \u00b0C in oxidative environments.<\/li>\n\n\n\n
- Chemical Stability<\/strong> \u2013 Resistant to a wide range of aggressive chemicals, acids, bases, and organic solvents.<\/li>\n\n\n\n
- Excellent Sealing Ability<\/strong> \u2013 Due to its flexibility and ability to adapt to irregular surfaces, it can create seals even in demanding conditions with variable pressures.<\/li>\n\n\n\n
- Low Permeability<\/strong> \u2013 Graphite is almost impermeable to gases and liquids, ensuring effective sealing even in environments with extreme pressures.<\/li>\n<\/ul>\n\n
Main Areas of Use for Graphite Gaskets<\/h3>\n\n
- \n
- Energy Sector<\/strong> – Graphite gaskets are widely used in power plants, especially in high-pressure steam boilers, where their high resistance to temperatures and pressures is utilized. They are used to seal flange joints, valves, and other critical parts of steam and hot water transport systems. <\/li>\n\n\n\n
- Petrochemical Industry<\/strong> – In refineries and chemical plants, graphite gaskets are used in environments with aggressive chemicals and high temperatures. Typical applications include sealing vessels, pipelines, and valves exposed to acids, bases, or other corrosive substances. <\/li>\n\n\n\n
- Chemical Industry<\/strong> – Graphite gaskets find application in chemical production, where it is necessary to seal systems transporting aggressive media at high temperatures. Graphite materials are indispensable here due to their resistance to chemical reactions, whether in the production of acids, fertilizers, or solvents. <\/li>\n\n\n\n
- Automotive Industry<\/strong> – In the automotive industry, graphite gaskets are mainly used in engine systems, where they are found in environments with high temperatures and pressures. Typical examples are exhaust system gaskets or cylinder head gaskets, where it is necessary to withstand extreme temperatures, vibrations, and pressures. <\/li>\n\n\n\n
- Steel and Metallurgical Industry<\/strong> – In the steel and metallurgical industry, graphite gaskets are used in high-temperature applications, such as metal melting furnaces or gas and vapor exhaust systems. Due to their resistance to high temperatures and chemical influences, they are ideal for environments where conventional sealing materials fail. <\/li>\n\n\n\n
- Pharmaceutical Industry<\/strong> – Even in demanding hygienic conditions of pharmaceutical production, graphite gaskets can be used, especially where high temperatures or aggressive chemicals are involved. In pharmaceutical production, not only sealing ability is important, but also the chemical inertness of the material to prevent product contamination. <\/li>\n<\/ul>\n\n
- Petrochemical Industry<\/strong> – In refineries and chemical plants, graphite gaskets are used in environments with aggressive chemicals and high temperatures. Typical applications include sealing vessels, pipelines, and valves exposed to acids, bases, or other corrosive substances. <\/li>\n\n\n\n
- Chemical Stability<\/strong> \u2013 Resistant to a wide range of aggressive chemicals, acids, bases, and organic solvents.<\/li>\n\n\n\n
- Maximum operating pressure 200 bar<\/strong><\/li>\n\n\n\n