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Gaskets (Seals)

Gaskets (Seals)
Gaskets

The sealing quality has a decisive influence on the service life of a gasket. In addition to the geometry, the mixture and production process are decisive for the function and service life. In spite of the same chemical designations, gaskets differ on the basis of the additives and particularly, the degree of cross-linkage.

Exceptionally high product temperatures can also destroy the structure of the gasket. Gaskets may be defective even though they appear to be intact. o The usual temperature specifications are based on dry air and are therefore not transferable to practical applications. o The allowable temperatures for liquid or steam are considerably lower in general.

In addition to the resistance to temperature and corrosion, the swelling characteristics of gaskets are decisive for their suitability.

Due to improvements on the geometry of the gaskets and the installation space, which are applied for a patent, a considerably higher resistance will be obtained against negative influences such as expansion due to temperature and swelling characteristics.

The following information is required for the selection of gaskets. o Product (also CIP/SIP) in contact with gasket, including

* duration of contact

* concentration

* temperature or temperature change

* switching cycles

An abundance of analysis procedures are