Valve monitoring method and arrangement
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United States of America Patent
Stats
-
Dec 25, 2007
Grant Date -
May 25, 2006
app pub date -
Sep 30, 2005
filing date -
Apr 1, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus or arrangement, for monitoring the operating characteristics of valves, principally to monitor for failure of a valve. The method including measuring a pressure differential across a valve 1 and comparing the measured differential with a required differential. If the measured differential is acceptable relative to the required differential, the valve is deemed to be operating acceptably. If the differential is not acceptable relative to the required differential, then further monitoring in the form of flow sensing takes place and is compared relative to required flow characteristics. The method employs a comparison of the pressure differential and the sensed flow characteristics to determine whether the valve is operating acceptably.
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