Valve assembly including pressure relief mechanism
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United States of America Patent
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Sep 27, 2016
Issued Date -
N/A
app pub date -
Mar 13, 2014
filing date -
Mar 14, 2013
priority date (Note) -
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Abstract
A valve assembly includes a housing having a first chamber, a second chamber, a valve seat disposed between the first chamber and the second chamber, a valve head disposed in the housing and moveable relative to the housing, a valve stem operatively coupled to the valve head for moving the valve head between the open and closed positions, and a pressure relief mechanism including a plug coupled to the valve stem and extending along a plug axis in the bore of the valve head moveable relative to the valve head from a sealed position preventing fluid communication through the bore to an unsealed position allowing fluid communication through the bore for relieving pressure differences between the first chamber and the second chamber when the valve head is in the closed position.
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