Rapid Gas Decompression (RGD) is an occurrence that frequently appears whilst high-stress gas particles drift into the elastomer in the concentrated/compressed form. When the stress ambient to the elastomer is quickly relieved, the compressed gas inside the rubber attempts to broaden and escape from the elastomer, consequently causing Rapid Gas Decompression (RGD). The detrimental effect of this swelling is not so much throughout the intake of the gas, but mostly while the system stress is rapidly released. In the occurrence of Explosive Decompression (ED), the gas immersed by the polymer broadens suddenly inside the polymer upon the alleviation of surrounding stress.
Resulting from aggressive carbon dioxide and hydrogen sulfide gases, Rapid Gas Decompression (RGD) causes degeneration and collapses of polymer elements, at the same time putting costly machinery and assets at risk. Such failure can arise in down-hole installations, gas compressors and further circumstances where high stress is routinely confronted. Due to their persistent stress imbalance, elastomers are most fragile to RGD. Once they are compressed, gases permeate into the inside of the seal, where they stay until stress is alleviated. When this occurs, the gas is pushed to exit via the easiest route, frequently causing failures and ruptures of elastomers and other parts.
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