Gaskets used to seal flanged joints have two failure modes: the gasket may leak, usually slowly, or it may suffer a sudden, catastrophic failure – a condition commonly referred to as “blowout”. The latter condition is the subject of this blog.

What is gasket blowout?

“Gasket blowout” is a term used to describe the sudden and catastrophic failure of a gasket. Blowout usually occurs when the applied pressure exceeds the physical strength of a gasket. The high internal load forms a hole or tear in the gasket that suddenly releases the media being sealed. A blowout condition creates a hazard for personnel, equipment, and the environment – hot, toxic or hazardous fluids or gases can rapidly escape from the ruptured gasket, possibly injuring personnel and damaging equipment, while escaping into the environment.

How can gasket blowout be prevented?

Because the forces in a flanged joint are complex, there is no one single solution to preventing gasket blowout. Rather, multiple factors must be considered and addressed to reduce the risk of gasket blowout. These include the following:

While there is no single solution to preventing gasket blowout, following the above tips will lessen the risk of a blowout occurring.

As a leading provider of custom cut gaskets, CRG sealing specialists will be pleased to provide further information on material selection and best practices to reduce the risk of gasket failure and blowout. For more information on the products we can supply, please contact us at crg@canadarubbergroup.com

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