The Performance of Several Types of Flange Gaskets

The Specific Performance of Several Flange Gaskets

We all know that there are small components that play a sealing role together in flange connections. They are gaskets. During normal use, flange gaskets may be affected by media, temperature, pressure, etc. However, many people are not familiar with the specific performance of different gaskets. Today, we will briefly introduce the performance of several types of flange gaskets.

1.Flange metal gaskets

The flange metal gasket can be divided into three forms: octagonal and elliptical gaskets, toothed gaskets, and lens gaskets, which are made of materials such as pure iron, extremely soft steel, and aluminum. The metal gasket has high requirements for the machining accuracy and surface roughness of the sealing surface. Its bolt clamping force is large, making it more suitable for use in valves under high temperature and pressure.

The flange metal gasket we mentioned at the beginning is suitable for different places. Octagonal and elliptical flange gaskets are suitable for use in A-type clamp butterfly valves with trapezoidal groove flange sealing surfaces. The tooth form is actually an improvement on the metal flat gasket, processing a conical tooth ripple to make it suitable for use on concave convex flange sealing surfaces. The lens gasket is self-evident. It is actually a type of gasket suitable for sealing surfaces of lens type flanges.

2. Flange graphite gaskets

The biggest characteristic of graphite is its softness, so gaskets made of graphite are often used in high-temperature and highly corrosive media.

3.Flange metal clad graphite gaskets

The flange metal wrapped graphite gasket and flange graphite gasket are different, so when choosing a suitable one, you must pay attention. The flange metal wrapped graphite gasket is made of thin metal wrapped around the annular asbestos gasket, which is more suitable for use in high temperature and high pressure environments.

The above is the specific characteristics and scope of use of three different types of flange gaskets that we have summarized for you today. In fact, in addition to the three types of flange gaskets we introduced today, there are many other types of gaskets, such as spiral wound gaskets which are suitable for high temperature and medium pressure valves, and polytetrafluoroethylene gaskets suitable for low temperature and strong corrosive media under various pressures.

If you would like to learn more about flanges and flange gaskets, please feel free to contact us and we will provide you with timely answers.

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