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Things to Consider in Selecting the Right O-Ring for Your Needs

Things to Consider in Selecting the Right O-Ring for Your NeedsUsing the correct O-Rings in an engineering application is an important job that is understood by many UK O-Ring suppliers. When it comes to Specialist Sealing Products for that matter, only the experts can advise on what is the right way to use seals and O-Rings within the engineering application for which they have been designed.

O-Rings are so integral to engineering that they have even entered into the mainstream conversations of laypersons. In the 1980s, O-Rings were all anyone could talk about after the Chernobyl and Challenger disasters. It really brought home to the world how important they are.

With that in mind, here is a quick list of some points to consider before placing an order for them with your UK O-Ring supplier.

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1. Performance vs. Durability

When using an O-Ring in an application, some factors need to be taken into consideration before heading to the O-Ring finder. If they are for a short-stroke application, then a small diameter O-Ring will be suitable. Thick cross-sectional O-Rings are best suited to long stroke applications.

Optimum O-Ring performance depends on small details for them to perform and last for the estimated lifetime. Engineering applications rely heavily on hydraulic and pneumatic seals on any dynamic rod or piston to have a decent lifespan. The durability must in no way affect the efficiency of the seal in the hardware.

2. Correct O-Ring Material

The O-Ring can degrade if the materials in the application are not compatible. The seal material can swell if the wrong compound causes fluid to build up and seep. The long-term usage of O-Rings relies on no chemicals being present during its functionality that could corrode it.

3. Temperature

Every temperature extreme that the O-Ring will be subjected to during performance must be taken into consideration. An O-Ring is produced with a certain amount of flexibility, and this can be lost and become fragile with extreme cold. Alternately, if the O-Ring selected for the application cannot withstand high temperatures, it will degrade when exposed to them.

4. Pressure

Knowing what kind of pressures the O-Ring will be subjected to during its operation is very important. It is necessary to calculate some numbers and statistics before the correct O-Ring application is found.

If the O-Ring seal is to remain static, then a standard Shore 70A material will be adequate. This will also have to factor in the other criteria in this list for the application; we are dealing in estimates here.

If the calculations reach a pressure estimate of over 1,500 pounds per square inch, then add a backup O-Ring as this will prevent any slippage or swelling/eroded material.

5. Perfect Size & Fit

The material chosen for the O-Ring must be suitable for the elements with which it will interact. If it is too soft for the application, it can extrude. If it is too hard, then it can swivel and loosen. This will lead to leaks and loss of performance and durability.

The selection of the perfect O-Ring for the many engineering projects currently underway in the UK is always made easier with the help of a Specialist Sealing Product expert.

Reference Video: Scottthesigncrafter

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