O Ring Seal Types

O rings are mechanical gaskets with a round cross section.

O ring seal types.

One type of o ring material. Some of the common types of o ring materials include ptfe nitrile buna neoprene epdm rubber and fluorocarbon viton. These seals are used in flange or face type applications. O ring and other sealing profiles for sealings there are variations in cross section design other than circular.

Internal or external pressure must be taken into consideration when it is used as a face seal. This type of seal is typically employed in the face flange type applications depicted in illustration 4 1. The shape can have different profiles an x shaped profile commonly called the x ring q ring or by the trademarked name quad ring. Widely regarded as a general purpose type of o ring nitrile elastomers also known as buna n or nbr offer a respectable temperature range of between 50 c and 120 c with excellent resistance to tears and abrasive treatment.

Not only can it hold up against abrasive activity it is also tear resistant. A number of common seal types t seals u cups v packing and other devices have been and are still used for both dynamic and static seals. This seal acts similar to the gasket which is squeezed on both ends top and bottom of an o ring cross section. With a temperature scope between negative 54 and 149 c nitrile is suitable for use with hydraulic fluids petroleum and water.

When designing grooves for static axial seals the first consideration is whether the pressure is coming from inward or outward. Buna n also know as nitrile o rings are one of the most common general purpose type of seal available on the market today. They are commonly used to prevent leaks of either fluids or gases from occurring in products systems or machinery and find use across a variety of industries. O rings are a form of gasket or seal that features a round cross section.

They are used to prevent gas and fluid leaks in static and dynamic applications and are manufactured from various types of elastomers. When compared with an o ring these other seal types may show one or more design disadvantages which might be overcome by use of an o ring. As an aid in assessing the relative merits of an o ring the.