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Successful seal performance requires careful consideration of process conditions, elastomer properties and seal design. A deficiency in any one of these areas will result in a reduction of seal service life. If a seal failure does occur, a systematic approach should be taken to determine the root cause of the failure.
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Chemical attack
Thermal attack
Process pressure
Mechanical failure
Seal design
- Groove dimensions
- O-ring size
- Elastomer compound
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Samples of failed O-rings were submitted to DuPont for evaluation. Corrective action as well as suggestions to improve seal performance were provided.
For help in evaluating your sealing performance, DuPont offers assistance in compound selection and seal design for Kalrez® parts. Before an in-depth analysis of O-ring failure can be provided, application data, such as process chemicals, temperatures, etc. must be supplied.
For elastomer compatibility information visit our web site's Chemical Resistance Guide, request a copy of the Kalrez® Application Guide, or call DuPont at 800-853-5515.
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View Examples with
Corrective Action
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