Control valve
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United States of America Patent
Stats
-
Apr 4, 1989
Grant Date -
N/A
app pub date -
Jun 4, 1987
filing date -
Jun 4, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A two-position, three-way subsea non-interflow valve design comprises a plug assembly. An elongated member is positioned within the valve for relative movement with respect to the plug assembly. A first seal on the plug assembly remains closed until a second seal with the elongated member circumscribes the function port. Further movement of the elongated member opens the first seal to allow flow from the supply to the function port. Two seals are presented in the flow path of the supply port to eliminate interflow to any other valve opening.
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Cited Art Landscape
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