Sealing Devices Inc.
 

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AS9100:2004

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Home > Gaskets
 
 

Gaskets

 

Gaskets are materials that seal between two different surfaces, under compression. The sealing is a result of the compressive forces created by sufficient bold load, and also works to fill the imperfections on the mating surfaces to be sealed.

Key factors involved in choosing a suitable material for a given gasketing application include:

1) Temperature - possibly the most important factor in choosing a gasket material. When higher temperatures at the gasketed joint need to be sealed, the potential choices are quickly eliminated. If the system operating temperatures approach a gasket materials max. continuous operating temperature threshold, the next best material should be chosen.

2) Chemical compatibility to the media to be sealed against (including flushes and system cleanouts). There are many different fluids and gasses to seal against, and many different choices of gasket materials to seal against them.

3) Pressure at the gasketed joint. The internal pressure of the fluid should be a determining factor in choosing a sealing material. If severe cycling or pressures changes occur frequently, a more robust material may be required.

4) Application - this includes all factors such as the number, grade and size of bolts to create compression, the surface areas of the sealed joint.

Because pressure and temperature are so closely connected, it is often effective to consider them together by measuring Pressure x Temperature or PXT value. Review the specifications of the material you are considering - if they are both near the max. continuous operating limits of the application, a more robust material should be used.

An important factor to consider in selecting materials is that most testing for OEM products is conducted under laboratory conditions. Actual field environments must be considered before a recommendation for materials can be made.

Call us at 800-727-3257 to determine your the correct compressed sheet gasketing material for your next sealing project.

   
 
 
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SD Sealing Devices Inc.
4400 Walden Ave. Lancaster, NY 14086

Tel: 716.684.7600   Fax: 716.684.0760
E-mail: seals@sealingdevices.com      © 2010 Sealing Devices Inc.

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