The O-ring is a very common seal and can be made of elastomer, PTFE or solid or hollow metal.
The O-ring is mainly used for sealing and is placed in the sealing ring, which is cut into metal or other solid materials.
The O-ring and the seal sleeve form a typical O-ring assembly
Advantages of O-Rings:
- O-Rings are very cost effective.
- They seal over a wide range of temperature, pressure, and tolerances.
- No critical torque on tightening preventing structural damage.
- Light weight and require little space.
- Where differing amounts of compression affect seal function with flat gaskets, an o-ring is not affected as the metal to metal contact is generally allowed for.
