Advantages of O-Rings

• They seal over a wide range of pressure, temperature and tolerance.
• Ease of service, no smearing or retightening.
• No critical torque on tightening, therefore unlikely to cause structural damage.
• O-rings normally require very little room and are light in weight.
• In many cases an O-ring can be reused, an advantage over non-elastic flat seals and crush-type gaskets.
• Thedurationoflifeinthecorrectapplicationcorresponds to the normal aging period of the O-ring material.
• O-ring failure is normally gradual and easily identified.
• Where differing amounts of compression effect the seal function (as with flat gaskets), an O-ring is not effected because metal to metal contact is generally allowed for.

For those who are unfamiliar with O-ring design, it is recommended to first study this introductory section, becoming familiar with the basic principles of O-ring seals, their common uses and general limitations.

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