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The influence of the surface roughness on the specific leak rate of gasket seals

✍ Scribed by A Roth

Publisher
Elsevier Science
Year
1970
Tongue
English
Weight
376 KB
Volume
20
Category
Article
ISSN
0042-207X

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✦ Synopsis

By using the concepts developed in Sealography, an equation for calculating the specific leak rate of vacuum gasket seals is derived.

The equation, which is found to be in good agreement with experimental data published by various authors, shows that the specific leak rate (expressed in terms of leak rate width/length of seal) is given by the product between the sealing coefficient, the square of the initial surface roughness, and the pressure difference across the seal.

Graphs for establishing the value of the sealing coefficient and specific leak rate are presented, and the imitations due to the surface roughness in obtaining "Zero leakage" are analyzed.

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