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What does a flexible graphite gasket mean? What is the difference between a high-strength graphite pad?
Dec 19, 2018

Flexible graphite gaskets are perforated or cut from pure graphite sheets. They have good corrosion resistance, high/low temperature resistance, good compression resilience and high strength, and various round shapes and complexities. Geometric gaskets are widely used in pipes, valves, pumps, pressure vessels, heat exchangers, condensers, generators, air compressors, exhaust pipes, refrigerators, etc.


Overview and features


Flexible graphite, also known as expanded graphite, is made of scaly graphite and chemically treated to form interlaminar compounds. At a high temperature of 800-1000 ° C, the interlayer compound becomes a gas, which expands the scale graphite by about 200 times, becomes like heat conduction of cotton, and overcomes the disadvantage of brittleness, thereby exhibiting good sealing property. Loose and porous, elastic. Working under high temperature, high pressure or radiation conditions, no decomposition, deformation or aging, chemical stability. The birth of flexible graphite, declared that the old-fashioned era in the field of chemical sealing will end compared with asbestos gaskets, flexible graphite has the following obvious advantages:


First, the non-radiative and pollution-free flexible graphite does not contain harmful components, while the asbestos products have the harm of radiating the human body and also pollute the environment.


Second, high temperature resistance. The flexible graphite reinforced composite gasket can withstand high temperatures of 1650 ° C, even if the chemical equipment melts, it is still safe. When the asbestos product is at 500 ° C, the internal crystal water will be decomposed, so that it will be powdered and lose its efficacy.


Third, a wide range of applications. In addition to strong oxidizing acids, flexible graphite is resistant to most chemical media, including radioactive chemical media, while asbestos products are poorly adaptable and cannot be used in radioactive media. Some chemical towers, heat exchangers, etc., require that the joints are not insulated, flexible graphite can be done, and slate products cannot.


High-strength graphite composite gaskets and flexible graphite gaskets Different graphite cutting gaskets are perforated or cut from pure graphite sheets. They have good corrosion resistance, high/low temperature resistance, good compression resilience and high strength. A variety of round and complex geometric gaskets are widely used in pipes, valves, pumps, pressure vessels, heat exchangers, condensers, generators, air compressors, exhaust pipes, refrigerators, etc.