Message Board Thread - "Infrared to detect leaking natural gas valves"

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Infrared to detect leaking natural gas valves Jeff H 12/6/2010
Hi,
I had an inquiry about using infrared to detect leaking valves in natural gas pipelines. This is not the gas leaking out of the valve into the atmosphere but through a closed valve from one side to the other side. Does anyone have any information on this type of testing? If so are there any recommended parameters for the testing?
Thanks
 
Re:Infrared to detect leaking natural gas valves TomC 12/6/2010
Unless the temperature of the gas is elevated or very cold it will be hard to detect a leak since the cameras only see surface temperatures. The leaking gas would have to raise or lower the temperature of the pipe and valve. You might be able to detect a small temperature change in the body of the valve but not likely. Ultrasonics is probably your best bet.
 
Re:Infrared to detect leaking natural gas valves manuel-thermoimagen 12/6/2010
ultrasonics or if available, pressure gage readings.
 


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