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Factors to consider when selecting a seal ring

The following factors need to be considered when selecting O-rings:

1. The nature of the sealing medium: different materials have different applicable media, which need to be selected according to actual needs. For example, if the medium that needs to be sealed is petroleum or solvent, butyl rubber should be selected; If the medium that needs to be sealed is high temperature or chemically corrosive substances, then fluorine rubber should be selected.

2. Working environment: The working environment of the O-ring needs to be considered, such as temperature range, pressure range, whether it is exposed to sunlight or ozone and other factors. These factors will affect the material selection of the O-ring.

3. Cost: Different materials of O-ring prices are also different, need to meet the requirements of the use of the premise, choose cost-effective products.

4. Installation method: Different installation methods need to choose different materials, for example, if you need to install by pressing, then you need to choose less hardness materials, such as nitrile rubber; If you need to insert the installation, you can choose a harder material, such as polytetrafluoroethylene.

5. Service life: The service life of O-type seals of different materials is also different, and the appropriate material needs to be selected according to the actual needs. For example, the service life of nitrile rubber is generally 5-10 years, and the service life of fluorine rubber is longer, generally about 10-20 years.

In short, it is necessary to comprehensively consider the selection of O-ring seals according to actual needs, and choose the appropriate material and specifications to ensure the sealing effect and service life.


Name: Kevin Li





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