Used BX-152 ring gasket with “coined” sealing surfaces.
This used ring gasket clearly shows the flattening of the corners, called “coining”. This “coining” occurs as a result of tightening the connection sealed by the gasket. Only by “coining” does the gasket close off any possible gap and create a seal.

Note: Coining yields or deforms the gasket so that any reuse will not reliably achieve a seal. 1

Operators referencing this information, using a BX 152 gasket, should consider this example typical for all ring gaskets. 1

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Words in bold italic indicate they have subjective meaning and persons using this information must use experience to improve the reliability of their judgement when the meaning of these words can have impact on performance.


 

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