Flexible seating structure for valves
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United States of America Patent
Stats
-
Dec 26, 1995
Issued Date -
N/A
app pub date -
May 15, 1995
filing date -
Feb 7, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A rotary valve has a valve housing with a wall defining a flow passageway, a closure member journalled within the valve housing and mounted for movement between a first position for permitting flow of fluid within the flow passageway and a second position for ceasing flow of fluid within the flow passageway, and a flexible seating ring disposed at least partially within the flow passageway in a position for sealing engagement with the closure member in second position. The flexible seating ring has a flow-through section sized to fit within the flow passageway with a clearance fit, and a flanged seating section extending outwardly from the flow-through section and positioned for sealing contact with the closure member to seal the valve. A seating ring support member is positioned to support the seating ring in a manner to permit the seating ring to move axially and radially within the flow passageway to provide improved tolerance to dimensional variation in manufacture.
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Cited Art Landscape
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