Cut Gasket


There are many non-metallic materials to choose from, depending on the operating conditions. Materials with similar performance and price are offered by manufacturers, which are continuously developing new products or changes to existing ones.

It is not practical to list and have the characteristics of all materials. The most commonly used materials were listed with their properties. If a deeper knowledge is required it is recommended to consult with the manufacturer.

The four basic conditions, which must be observed on selecting a gasket material, are:

  • - Operating pressure.
  • - Bolt load.
  • - Resistance to chemical attack.
  • Operating temperature.

The resistance to chemical attack can be influenced by several factors, mainly:

  • - Concentration of the chemical agent: a greater concentration does not necessarily make the agent more corrosive.
  • - Temperature of the corrosive agent: usually higher temperatures accelerate the chemical attack.
  • Dew point: the fluid excursion through the dew point, in the presence of sulfur and water frequently found in gases resulting from combustion, can lead to extremely aggressive condensates.

In critical applications, laboratory tests are necessary in order to determine the compatibility of the gasket material with the media to be sealed at the operational conditions.

To design a gasket, an evaluation must be done, starting by the type of flange, bolt load, seating stress, etc.

 

 

 

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Schanzenstraße 35, 51063 Köln, Germany

Phone: +49 (0)221/922 342-0

Fax: +49 (0)221/922 342-22

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Phone: +43-5372-64020-0

Fax: +43-5372-64020-20

 

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