O-rings And Their Application

By Author: Afra George
Total Articles: 24
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The section of the rubber seal is circular as the name suggests. Due to its round section it is called O shaped ring or O-ring. It is one of the common seal ingredients used in fluid pressure and gas pressure transmission system. It is commonly used in the alternative motion seal and static seal.

These are Silicone Rubber Gaskets, which comes in different shapes and sizes with various applications. These Silicone Gaskets are basically used in different types of industry. They are engineering industry, aircraft industry, building and catering industry. They are actually adjusted between two or more surfaces where the space of air or fluid needs to be kept. Between the two surfaces the silicone rubber gaskets are adjusted with force to work it as the best seal. To get a motion or a movement in O rings lubrication comes from fluid, which is being sealed.

Since these gaskets have the properties of silicone they can get any form, which are as follows:
Mitre cut letter box type
Horse shoe shape
O ring shape

Silicone ...
... has great qualities of resisting extreme temperatures and preventing of moisture. It is mainly used in medical applications, sealants, adhesives, cookware, insulation and lubricants. Silicones are actually polymers (Polymer is a large and complex molecule, which is made of smaller molecules joined together in a repeating pattern.
Poly means many, Mer means part. These words have been taken from Greek language)
which are chemical compound including oxygen, hydrogen and silicon.

Some of the useful properties of Silicone are as follows:
Low toxicity
Thermal Stability
Water Repelling
Good resistance to sunlight and oxygen etc.
Non-stick
Good electrical insulation

Silicone gaskets are mechanical seals, which are in use to prevent the leakage between two surfaces. Gaskets need some compression to adjust. Therefore, the gaskets need some de-formation form. For these purposes rubber gaskets are best. An O-ring is a silicon gasket, which has versatile functions. It is mainly used in pipe-work, plumbing applications. It allows a small type of movement between the surfaces while sealing them properly.

There are various types of gaskets are available which are:
Silicone gaskets
Solid silicone gaskets (mainly used on metal fixings)
Sponge silicone gaskets
Silicone foam gaskets (very close to sponge gaskets)
Injection molded silicone gaskets
Opened cell type foam gaskets can be taken for dust seals or shock and vibration gaskets. Closed is commonly used for environmental seals.

Author has written more articles about Rajhansoils at Oil Seals & O Rings. For More visit US - http://www.rajhansoilseals.com