Butterfly valve construction having a composite seat
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United States of America Patent
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-
Aug 11, 1987
Issued Date -
N/A
app pub date -
Nov 26, 1986
filing date -
Nov 26, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A butterfly valve having a composite, reinforced seat, the valve having a one piece body defining a radially inwardly extending annular rib, the valve seat being a U-shaped annular member of a generally resilient material and having a radially outwardly opening channel which engages the rib of the valve body to provide an interlocking engagement between the valve seat and the valve body, the seat including a series of generally U-shaped structural members made of a material more rigid than the resilient material of the seat, the U-shaped member being bonded to the seat, the U-shaped members being spaced sufficiently to permit distortion of the seat so that it can be inserted in the valve body.
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