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  1. MarkMark220

    Best book on piping?

    Piping Handbook By Mohinder L. Nayyar This is a very informative book and I have found it very useful! I have the sixth edition. The 7th edition is available, $125. If you go to Amazon.com you can see 54 sample pages most of which are index and table of contents. It is also available used...
  2. MarkMark220

    DIFFERENCE BETWEEN SEAMLESS AND WELDED PIPES

    ElderX gave you some good info and I hope I can add a little to it. One other thing to consider is that welded pipe whether EFW (Electric Fusion Welded) or ERW (Electric Resistance Welded) will have specific joint factors (again considering applicable codes.) When considering allowable working...
  3. MarkMark220

    what does schedule pipe mean? schedule 40, schedule 80

    Good luck with your tests. This should be a little more definitive for you. Pipe schedules indicate approximate values of the expression 1000 x P/S where P is the service pressure and S is the allowable stress, both expressed in pounds per square inch. Here's a tip for you. When calculating...
  4. MarkMark220

    Depth of Oil in Sloped Atmospheric Drain Line

    I have searched for hours now. This has to have been tackled before. Knowing my flow rate, the size of my pipe, the specific gravity of my oil (.85) and the slope of the pipe (1/2" per foot) how can I calculate the depth of the oil in the pipe consistently? API mandates that drain lines on...
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