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Choose the Right O-Ring: Here’s How
An O-ring is an important component of any mechanicalapplication. It is the O-ring that keeps your machine parts in the place andprevents any unwanted leakage that might otherwise take place in the absence ofthe circular sealing component. The variety of O-rings in the market is immenseand there are different o-ringsfor all kinds of applications. Choosing theright kind of O-Ringfor your application can be difficult in such cases.
No two o-rings used in two different applications arethe same. There is always a difference of size and material used.Even the samesizes of two o-rings can vary depending on the standards they follow. There isthe US Aerospace standard, the UK standard, and the Japanese standard. Thereare also differently shaped O-Rings that include the circular shaped O-rings,the square cut rings and the quad rings or X-rings. The different shapes areused based on the primary purpose of the usage of O-rings. The quality ofO-rings differs according to the material used in the making of it. There areBuna-N, Buna-S, Silicon, Viton, NBR, SBR, Kalrez, PTFE, Aflas, FEPencapsulated, and EPDM O-rings in the market. The desired O-rings can be chosenbased on what application they are to be used in and what conditions thatapplication needs to withstand. The Buna-N O-rings are cheaper compared to thevitol O-rings. Similarly, the prices of different O-ringsvary depending on their utility. If the application is to be maintained in highpressure or temperature conditions, Buna-N and Buna-S O-rings which have arubber base are the best. The O-rings that can sustain liquid pressure and arecapable of preventing fluid leaks can be used for petrochemical or hydrocarbonpipelines. Similarly, X-rings with a stronger grip are used in mobile, dynamicapplications that are based on the motion of parts supported by O-rings. If theapplication is aimed at sustaining high-temperature conditions, the siliconO-rings can be used. Similarly, different designs and sizes can be useddepending on the orifice that needs to be supported or sealed. Choosing theright O-ring can be daunting but it’s not that hard even. All you need to besure of is your requirement and the system you are going to be using them with.There are any O-ringkits in the market that contain allkinds, shapes, and sizes of O-rings for different purposes.