"What are the failure modes of O-rings? Do people take this factor into consideration when making a choice?
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"What are the failure modes of O-rings? Do people take this factor into consideration when making a choice?
It is still necessary to distinguish between high-pressure and low-pressure environments. The selection of rubber seals is primarily determined by pressure, temperature, and the corrosive properties of the medium. Failures occur mainly due to damage during installation or as a result of inappropriate material selection.
"There are mainly 4 forms of failure for O-rings, namely corrosion, thermal damage, wear, and failure caused by factors such as installation and operation. Generally, the sealing surfaces are free of scratches and wear; therefore, physical damage to the sealing surfaces can be ruled out. Given the large amount of crystalline deposits and rust in the sealing chamber, along with the various symptoms of mechanical seal failure, it is preliminarily determined that the crystallinity and corrosiveness of the medium being transported are the main causes of the seal failure.