• December 31. 2021

O ring is an annular rubber seal with a circular cross section, mainly used in mechanical parts in static conditions to prevent the leakage of liquid and gas. In some cases, O ring can also be used as the dynamic sealing element in axial reciprocating motion or low-speed rotational motion. O ring provides as an effective and economical sealing element in different types of static or dynamic seal a...

• April 24. 2022

RGD is known as Rapid Gas Decompression, AED is known as Anti-Explosive Decompression. RGD (Rapid Gas Decompression) or AED (Anti-Explosive Decompression) is a failure mechanism of O-rings and elastomer seals which is caused by the rapid reduction in pressure of the gaseous medium. When the pressure is released, the gas penetrating into the elastomer seal will expand violently, which in turn will ...

• December 14. 2022

Rapid gas decompression (RGD) resistance is an extremely important property of elastomers in the oil and gas industry. Rapid gas decompression (RGD) often occurs when high pressure gas molecules are transferred to the elastomer under compression. When the pressure around the elastomer is suddenly released, the compressed gas in the elastomer will expand and leave the elastomer, causing RGD. When t...

• December 29. 2022

There are many factors that can cause RGD damage. It mainly includes the following aspects: Type of gas All types of gases can cause RGD damage, but H2S and CO2 have high permeation rates, so the effects of RGD can be particularly problematic. Due to aggressive carbon dioxide and hydrogen sulfide gas, rapid gas decompression (RGD) leads to degradation and collapse of polymer components, while putt...

• April 19. 2023

Perfluororelastomer FFKM Series is sealing product developed by JST to meet the increasingly demanding sealing needs of equipment manufacturers and users in semiconductor, petrochemical, mechanical seal, instrumentation, energy, biopharmaceutical, food and medical industries. In addition to chemical inertness and thermal stability, FFKM also has the unique elasticity and durable sealing force of s...

• May 25. 2023

Explosive decompression mainly occurs on materials that seal gas media, which is produced when the high-pressure gas drops to a very low pressure level in a very short time. This type of pressure reduction usually leads to damage to the seals. Elastomer materials may be torn at multiple locations or form bubbles on the surface. Explosive Decompression Testing JST is a leading manufacturer and deve...