What gasket is used for high-pressure flanges

Release time：

2022-12-08

Category：

Company News

Many devices require gaskets to play a sealing role. Depending on the physical properties of different media, the type of gasket used will not be different.

First, what sealing gasket is used for high-pressure flange

1. The sealing gasket suitable for high-pressure flange can be selected according to the material, such as choosing a solid wood gasket, which is more suitable for use in this high-pressure environment, and is also suitable for high-temperature media. You can also choose a metal gasket, because its own strength is relatively large, so it can resist high pressure, and it has different shapes, such as some T-shaped, some toothed or lens-type. The choice space is relatively large and can be used in different places.

2. The sealing gasket formed by combining metal and solid wood can also be suitable for high temperature environment and high pressure valve. There is also a winding sealing gasket, the main material is a wave metal belt, plus some sealing materials combined, such as asbestos or steel belt, or flexible graphite, etc., which is more suitable for high-pressure valves.

Second, the scope of use of sealing gaskets of different materials is different

1. There are many materials for sealing gaskets, but their range of use is not the same. For example, asbestos, the price is relatively low, and it is very convenient to use. However, if rubber or other ingredients are added inside, it is likely to cause some subtle leakage. Once the high temperature is encountered, the phenomenon of bonding is likely to occur, and it will be more troublesome to replace the gasket in the later stage.

2, you can also choose PTFE, this material gasket is more suitable for low pressure and medium temperature environment, if the temperature exceeds 150 degrees, the pressure standard reaches more than 1MPA, it is not very suitable to choose this material, because its maximum pressure should not exceed 2MPA.

3. There is also a metal-clad asbestos pad, the use temperature is relatively high, and the pressure is relatively large. Summary: If it is a gasket used in a high-pressure environment, you can choose a solid wood gasket or a metal gasket, including a PTFE gasket.

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