Pipe flange gaskets are used for improved joint performance. They are
considered much more superior than the conventional ring or full-face
gaskets. Although pipe flange gaskets are usually used for all normal
water and sewer service, they are especially useful in demanding
services like in very large diameter flanged piping. For specially
designed long-span installations, involving 2 or 3 or more lengths of
pipe or with any underground flanges, flange gaskets are of great help
because they could be subjected to undesirable beam loading.
These gaskets are available in numerous standard materials in various
thickness and hardness options for various flange sizes. Flange gaskets
are also available with adhesive on one or both sides or without
adhesive. Most materials are available starting at 1/32 thick and
can be supplied up to 1 thick. Some manufacturers supply flange
gaskets in wide rolls from which you can cut your flange gaskets to
size. Flange gaskets are also available to your exact requirements. Pipe
flange gaskets are being very frequently used for flanged joints which
are subjected to extreme chemical attacks.
- Material selection: Selection of the proper gasket
material is important with regard to the flange finish and
- Flange gasket types: Flat face or ring type
- Thickness selection
- Correct size
Flange gaskets are made of various materials like:
- Cork and Cork Rubber
- Closed Cell Foam
- Cross-linked Polyethylene
- Plant Fiber
- Cellulose Fiber
- Stainless Steel
- Cast iron etc.
of flange gaskets:
Standard pipe flange gasket line includes two basic styles:
Both ring type and full face pipe flange gaskets are available
in both low and high pressure options.
How to measure pipe flange gaskets?
It is necessary to know the nominal pipe size and the gasket's inner
diameter and outside diameter.
Applications of Typical Flange Gaskets:
- HVAC (Heating, Ventilation, and Air Conditioning) Industry:
Usually, flange gaskets used in this industry are made of different
types of rubber. They are usually supplied with adhesive on one or
both sides in various shapes like round (I.D. x O.D.), rectangular
and square outside shapes. Flange Gaskets are available for wide
- Plumbing Industry: Here, the standard ring and full face
flange gaskets are available in various styles.
- Sheet Metal Enclosures: The flange gaskets used here are
normally rectangular in shape. They come with adhesive on one side
which is used as a gasket to seal out dust, liquids or air.
- Electronic, food, medical, chemical and packaging industries:
The flange gaskets used here have a flat surface that is compressed
between two flanges.