Viton ® It is a synthetic high-performance fluoropolymer elastomer (rubber) commonly used for strict application of O-ring. According to the classification of FKM according to ASTM D1418 and ISO 1629 (hence, they are also referred to as "FKM o-rings"), fluororubber o-rings are preferred because they have high resistance to extreme high temperatures and harsh atmospheric conditions, as well as to oxygen, mineral oils, fuels, hydraulic fluids, aromatics, and many organic solvents and chemicals.

VITON O-RING TEMPERATURE RATING

Viton O-Rings

O-ring is used for sealing components, which must maintain consistent performance at various extreme temperatures. From aerospace to refining industries, there are systems that can reach high temperatures, which can quickly damage or degrade seals.

For this reason, it’s essential to have O-ring temperature rating systems in place that tell facility managers the correct O-rings to use with different conditions and equipment. Doing so will prevent facilities and equipment from being either insufficiently resistant to temperature damage or a poor price fit for a given system.

Therefore, it is necessary to establish an O-ring temperature rating system and inform facility management personnel to use the correct O-ring under different conditions and equipment. This can prevent facilities and equipment from having insufficient resistance to temperature damage, or from being priced inappropriately for a given system.

Viton and nitrile are the two most commonly used elastomers for manufacturing O-rings, but viton performs particularly well in high-temperature applications. They can provide consistent sealing for uncertain systems up to 400°F. In systems with temperatures up to 527 °F, fluororubber O-rings can also provide consistent sealing for up to two days.