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High temperature gasket There are many materials, such as rock wool board with fire retardant, glass wool, expanded polystyrene board (EPS board) and extruded polystyrene board (XPS board) with better thermal insulation effect. In the power industry, what problems need to be considered when choosing the gasket that can be applied?

 What problems should be considered when selecting high temperature gasket for flange in power industry?

Transportation pipeline medium; medium is a general term for the objects transported in the pipeline, which can be gas or liquid, corrosive liquid or oxidizing liquid. Different media have different characteristics. If it is corrosive, it is necessary to select the corresponding anti-corrosion gasket. If it is oxidizing, it is necessary to select the anti-oxidation gasket to ensure the normal transportation of the medium.

Temperature is one of the key points of gasket selection, some may be as high as one or two hundred degrees centigrade, but some may be as high as seven or eight hundred degrees centigrade, or more than one thousand degrees centigrade. Although they are all gaskets, different high temperature resistant gaskets have their own bearing range. If they exceed the value, even if they can be used in a short period of time, there will be deformation or even melting in the long run.

For most equipment, the pressure resistance is inversely proportional to the thickness of the gasket. The thinner the gasket is, the stronger the pressure it can bear, otherwise it will be weaker. However, the size of thickness should also be considered according to the actual situation of the product. Do not cut the thickness without limit in order to increase the compression resistance.

Finally, the product pt of pressure and temperature should be considered when selecting high temperature gasket. The PT values of different gaskets are different, and the reference Pt value can also select the suitable high temperature resistant gasket. When purchasing, the manufacturer will adopt the corresponding material Pt value when the PT value meets the demand. The above are several basic parameters to be considered in the selection of high temperature gasket, and we hope you can refer to it.


August 21, 2020

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What problems should be considered when selecting high temperature gasket for flange in power industry?

For example, there are many fire-retardant materials, such as polystyrene (EPS) and so on. In the power industry, what problems need to be considered when choosing the gasket that can be applied?

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