Teadit® Kammprofile gaskets offer outstanding flexibility, assuring seal integrity under pressure and temperature fluctuations, flange rotation, bolt stress relaxation and creep.
Teadit® Kammprofile gaskets are used by the chemical and petrochemical industry, as well as in power stations and refineries, on both standard pipework and special applications, e.g. shell and tube heat exchangers, etc. Kammprofile gaskets are constructed from a precision serrated metallic core with soft facing materials - flexible graphite or expanded PTFE - bonded to either side.
Depending on the kind of metal used, Teadit® Kammprofile gaskets can be used for all media from pH 0 to 14.
The core material should be chemically and thermally compatible with the fluid to be sealed. If possible, the core metal should be the same as used to manufacture the flanges to avoid corrosion or differential Thermal Expansion.
The most widely used covering material is Flexible Graphite. For operational conditions where Flexible Graphite is not recommended Expanded PTFE is used.
The chart below shows the Temperatre and Pressure limits for the cover materials.
|Material||Temperature ºC||Pressure bar|
|Standard Flexible Graphite||-240||450||345|
|High Temperature Flexible Graphite||-240||650||345|
In oxidizing atmospheres the temperature limit for Graphite is 450°C.
The Pressure and Temperature range is related to the range of each component. The Service Range is the combination of the limit for the metal and facing limits. For example, a Teadit® Kammprofile Style 942 with Carbon Steel core and Standard Flexible Graphite facing has the following limits:
-40ºC to 455ºC
|SS, Inconel, Monel||Flexible Graphite||4||310|
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Schanzenstraße 35, 51063 Köln, Germany
Phone: +49 (0)221/922 342-0
Fax: +49 (0)221/922 342-22
TEADIT® International Produktions GmbH
Rosenheimer Str. 10, A-6330 Kufstein Austria
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