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Web
Site Tools
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Look to
as "The Source."
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Revised:
06/27/2011
Provided
links give access to illustrations and/or additional information.
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1
To:
Subject:
Oval bottom ring groove
Question:
Doesn't an octagonal ring
gasket have better sealing efficiency compared with an oval ring gasket?
Can I install an octagonal ring gasket in an oval bottom groove?
Answer:
In actual practice oval
gaskets seem to coin easier than
octagonal gaskets so we at WOODCO USA prefer oval gaskets for make-up
and test, otherwise we find no difference.
Some very old flanges that
utilize “Type R” ring gaskets have
ring grooves with rounded bottoms, and specifications for these
flanges called for the use of oval gaskets in these grooves, do not
attempt to use any other type of gasket in these grooves. Ring grooves
in API flanges with “flat” bottoms will accept oval or octagonal
gaskets. API specifications for flanges no longer show rounded bottom
grooves.
For a detailed
explanation of how ring gaskets of all types fit and seal in grooves,
see Field Appraisal of Ring
Grooves, and Ring Gasket
Handling and Inspection.
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Information above, and in other
parts of this Web Site, may help persons who really seek to know. If you
have a question, and you think WOODCO USA may have the capacity to answer
it, please use our
link and give us a
chance to help.
WOODCO USA
provides Web Site Tools for identification, estimating, and reference only. Do
not use this information for manufacturing or inspection. Users of these tools
should not use them as a substitute for professional engineering advice.
Anyone making use of the information presented does so at his own risk and
assumes any and all liability resulting from such use.
FOR FURTHER INFORMATION, OR TO LEARN MORE ABOUT WOODCO
USA PRODUCTS AND SERVICES,
CONTACT:
WOODCO USA
P.O. Box 1261
Houston, Texas 77251-1261
Phone: 713-672-9491
USA and Canada: 1-800-496-6326
Fax: 713-672-8768
www.woodcousa.com
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