Asbestos board gaskets are widely used for sealing medium and low-pressure flange connections. They can seal water, steam, oil, solvents, and moderate acids and alkalis.
Asbestos is a mineral. It is highly resistant to fire and heat. It can withstand thermal and mechanical stresses in high-temperature environments. So, asbestos board gaskets are often used for sealing in high-temperature equipment. In oil refining, chemical, and metallurgical industries, many devices and pipes work under high temperatures and pressure. We need asbestos board gaskets to ensure sealing and prevent fluid leakage.
Also, asbestos board gaskets have excellent heat insulation performance. In some cases, such as in boilers and furnaces, we need heat insulation. Asbestos board gaskets can help. They reduce heat transfer and improve energy efficiency. Asbestos board gaskets have some corrosion resistance. You can use them in some corrosive media. They will seal and insulate.
Asbestos fiber materials will release water at high temperatures. This will weaken them. So, users should exercise caution when using them in high-temperature environments exceeding 500℃. Asbestos gaskets will swell in oil and solvents. But, within a certain range, this has little impact on their sealing performance.