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  • Users: IanMiller
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  1. IanMiller

    Flange Misalignment torque value

    In the pipeline industry it is not uncommon to experience massive flange misalignments when trying to install a new gasket. I have been asked to write a proceedure for proper installation and torquing of flanges in our system, but I don't know how to adress these misalignment issues. Stating...
  2. IanMiller

    Ethylene Glycol Freezing point

    I'm trying to figure out the freezing point og ethylene glycol/water solution at various mass % concentrations. Heres the problem: What I remember from Highschool Chemistry is freezing point depression is calculated by Delta F.P= Kfreezing*molality. That will produce a freezing point that...
  3. IanMiller

    Hydrotesting with fuel oil

    Alright i have another hydrotesting question. We will need to perform a hydrotest with product as our media, does anyone know the relationship of the density of fuel oil to elevated pressure, and the relationship between the density and temperature? Thanks Ian
  4. IanMiller

    Hydrotesting entrained air calc.

    In our hydrotesting guidelines it is suggested that the engineer calculate the percent of entrained air in the pipe (6-30" hydrocarbon pipeline). I'm attempting to simplify and standardize our hydrotesting program, but I can't seem to find any method for determining the percent of...
  5. IanMiller

    500# steam vs 15 #

    Alright this is a dumb newbie question, but I never learned anything about boilers in school. I've just been asked to evaluate our heat tracing at one of our sites. There we generate steam with 2 500 hp Kewanne units. I talked to an engineer today at our maintenance contractor about all of...
  6. IanMiller

    resizing sheet

    Alright I feel really dumb, but I just can't figure this one out. I spent several days building a very helpful spreadsheet, then I password protected it. Then I covered the entire sheet in a transparent chart so you can only axcess the input fields. Now I'm sure no one can bungle up my sheet...
  7. IanMiller

    Ethylene Glycol Hydrotest

    I have been working on organizing and verifying our hydrotest data. Last week I came across a few test that were performed with a 70:30 mix of water and antifreeze. The method I am using from the Pipeline Rules of Thumb Handbook does not take a mixture like this into account. Being a dumb...
  8. IanMiller

    Hydrotesting software

    As I am sure many of you are aware, after hydrotesting a pipe a series of calculations must be completed to correlate the actual pressure trends with calculated effects of thermal expansion, pipe wall expansion durring high pressures ect. I was wondering if anyone knew of a software package...

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