Methods and apparatus to partial stroke test valves using pressure control

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United States of America Patent

PATENT NO 9752599
SERIAL NO

14272090

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Abstract

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Methods and apparatus to partial stroke test valves using pressure control are disclosed. An example method includes generating a first pressure set point for a valve positioner coupled to an actuator to actuate a valve. The first pressure set point is associated with a partial stroke test of the valve. The example method also includes controlling an output pressure of the positioner towards the first pressure set point to actuate the valve in a stroke direction. The example method further includes determining whether the valve is stuck based on the output pressure.

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Patent Owner(s)

Patent OwnerAddress
FISHER CONTROLS INTERNATIONAL LLC205 S CENTER STREET MARSHALLTOWN IA 50158

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Junk, Kenneth William Marshalltown, US 17 171

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