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propane line

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kev
kev Member Posts: 100
in THE MAIN WALL
I am trying to determine the max amount of cubic feet of propane that can be moved through a 1/2" OD copper line from the storage tank to the second stage regulator. Not sure at what pressure first stage regulator normaly is set. The run is about twelve feet. Thanks.

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  • Frenchie
    Frenchie Member Posts: 113
    PSI

    The answer is.... It depends on the pressure of the 1st regulator. You would have to know that number. Those are adjustable, by the way, within a certain range. The higher the pressure, the more CFM you can pass through 1/2 inch pipe......
  • Plumdog_2
    Plumdog_2 Member Posts: 870
    If the first stage is set at 10 psi

    You should be able to feed nearly 2 million btu thru 1/2 inch for 12 feet. It all goes away after the second stage reg; if set at 11 inches WC you would need to jump up to 1 and 1/2 inch (steel) and not exceed 30 feet developed length to maintain that kind of load. (from the 2003 IFGC)
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