PRESSURE RELIEF VENTING FOR A VALVE DISK SEAL
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United States of America Patent
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Issued Date -
Jul 4, 2013
app pub date -
Dec 29, 2011
filing date -
Dec 29, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A valve (e.g., shutoff or regulating) is provided including a valve body having a fluid passage and a disc assembly. The disc assembly is pivotable within the fluid passage from an open position wherein the disc assembly is positioned within the fluid passage to provide for free flow of fluid through the fluid passage, to a closed position wherein the disc assembly is positioned within the fluid passage to substantially close off the fluid passage. The disc assembly includes a disc having a circumferential edge having a groove. A seal (e.g., an O-ring) is disposed in the groove. A pressure relief mechanism (e.g., a plurality of apertures) is provided adjacent to the seal to partially relieve differential pressure on the seal caused by fluid passing through the fluid passage. A similar valve having its seal located on the valve body is also provided.
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