Flexible seals for process control valves
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United States of America Patent
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Mar 7, 2017
Grant Date -
Dec 24, 2015
app pub date -
Sep 1, 2015
filing date -
Dec 21, 2005
priority date (Note) -
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Abstract
Flexible seals for process control valves are disclosed. An example disclosed seal includes a seal for use with a butterfly valve. The example seal includes a substantially flexible ring-shaped carrier configured to be moveably fixed within the butterfly valve and to surround a flow control aperture therein. The example seal includes a seal stiffener adjacent the substantially flexible ring-shaped carrier to increase the stiffness of the substantially flexible ring-shaped carrier in a first flow direction. The example seal includes a substantially rigid seal ring to engage an opposing surface.
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