Introduction and Classify of Sealing Gasket

July 22, 2022

Sealing gasket, is a kind of used for machinery, equipment, pipe as long as there is a fluid is the use of sealing spare parts, the use of internal and external, sealing the role of the material. Seal gasket is made of metal or non-metal plate material, by cutting, stamping or cutting process, used for sealing connection between pipes, sealing connection between machine parts of machinery and equipment. According to the material can be divided into metal sealing gasket and non-metal Sealing Gasket. Metal has copper gaskets, stainless steel gaskets, iron gaskets, aluminum gaskets, etc. Non-metallic there are asbestos gaskets, non-asbestos gaskets, paper gaskets, rubber gaskets, etc.

Classify:

1. High school and low pressure asbestos rubber plate gasket: the asbestos Rubber Gasket is made of asbestos fiber and rubber as the main raw material, supplemented by rubber mixture and filler, after mixing, hot roll forming, vulcanization and other processes. Asbestos rubber gaskets can be divided into ordinary asbestos rubber gaskets and oil-resistant asbestos rubber gaskets according to their different formula, process performance and use. According to the different temperature and pressure used can be divided into low pressure asbestos rubber mat, medium pressure asbestos Flange Gasket and high pressure asbestos rubber mat. Suitable for water, water vapor, oil, solvent, medium acid, alkali sealing, asbestos gasket is mainly used in the medium and low pressure flange connection sealing.

2.Oil resistant asbestos rubber gasket: Performance characteristics: Oil resistant asbestos rubber gasket is made of high quality asbestos fiber, oil resistant fiber, filler, colorant, etc., widely used in petroleum and chemical industry pipelines and equipment, according to the working conditions can choose the corresponding level of model. Scope of application: oil-resistant asbestos gasket: mainly used for steam, hydraulic, gas, oil solvents and no-corrosive medium sealing.

3. Cylinder gasket: Performance characteristics: The cylinder FPM Gasket is made of high-quality asbestos fiber, oil-resistant fiber, filler, colorant, etc., and is widely used in automobiles. Motorcycle engine cylinder, according to the working conditions can choose the corresponding level of model.

4. Aramid gasket: Performance characteristics: aramid gasket steam, organic solvent, acid, alkali, etc., widely used in the sealing of pumps, Valve Gasket, pipes, containers, etc. used in fluid conveying equipment. Composition and characteristics: sealing products made of high strength and high grinding aramid fiber as the main material and special materials with good lubrication. This sealing product has excellent lubrication and wear resistance. On a liquid device with a solid-liquid mixture, its outstanding features can be displayed.

5. Non-asbestos board gasket: Non-asbestos gaskets (asbestos-free gaskets) is a sealing material made of aramid and other organic fiber, plant fiber and nitrile rubber and inorganic minerals at high temperature. With few asbestos fibers, it is suitable as an alternative product of asbestos-free asbestos gaskets. Non-asbestos gasket (no asbestos Viton Gasket) has high strength, and has good resilience, and has super antipermeability is a high temperature to replace asbestos EPDM Gasket under high pressure good environmental protection material.

6. Asbestos pad: molded with asbestos cloth and other auxiliary materials for corrosive high pressure and high temperature sealing. For the reactor, reaction tank, manhole, hand hole and other parts. Usage temperature: -100℃ - + 1000℃; operating pressure: PN

7. Rubber mat: a kind of vinylidene fluoride and fluoride without fluorine, propylene fluorine, propylene material co-polycolloid elastomer, widely used in national defense industry and civil industry, its characteristics are: high temperature resistance, ozone resistance, natural aging resistance, vacuum resistance, fuel oil resistance, lubricating oil resistance, strong oxidant resistance, drug resistance and electrical insulation performance.

8. PTFE coated rubber mat: PTFE coated rubber gasket is a tetrafluoroethylene sandwich rubber composite gasket. With strong anti-corrosion performance and high sealing return elasticity, suitable for enamel, glass pipe and other low-pressure chemical equipment anti-corrosion sealing.

9. No asbestos gasket: no asbestos gasket according to its formula, process performance and use, roughly divided into asbestos rubber plate gasket and asbestos copy plate FKM Gasket, they are aramid and other organic fiber and plant fiber, rubber and minerals after pressure or copying process made of asbestos sealing gasket series, because the asbestos gasket series not only has high strength, and has good resilience, and has super permeability resistance, so they are automotive and industrial machinery.

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Author:

Mr. Zheng

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zheng@rmiplast.com

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+86 15888074637