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  1. Fidens

    Multiple pumps into common header and header sizing

    LittleInch, thank you for your prompt response and sorry for the late reply (I was reading further into all your comments/suggestions) I missed this thread (thread407-303444) the first time around and my problem is very similar as described there (I'm not residential and have more pumps) but...
  2. Fidens

    Multiple pumps into common header and header sizing

    Hi all, I’m hoping to get some confirmation in my thinking. My current project situation is as follows: An ash pond will have multiple sump pumps located all around the pond for ground water management over the years. There will be a total of 30 sump pumps, roughly every 300 ft. and the...
  3. Fidens

    B31.4 Expansion Stress understanding

    Thanks BigInch ! that makes a lot more sense to me. A stress check swing from Min to Max seemed a bit too extreme too me and unrealistic. I see that by your suggestion the "range" is more confined to operating within a "season" as opposed to the whole year which is far more realistic. Not...
  4. Fidens

    B31.4 Expansion Stress understanding

    Hi all, I'm working on the stress analysis of a pipe rack, per B31.4. My question is based around the code requirements for expansion stress and correctly reflecting that requirement in the stress analysis load cases. From reading B31.4, section 402.5.2 (unrestrained pipe) it shows the...
  5. Fidens

    A312 TP304 Stainless Steel above 1000 F

    Thank you guys for your feedback. This clarifies things a great deal !
  6. Fidens

    A312 TP304 Stainless Steel above 1000 F

    Hi, ASME B31.1 says that "The allowable stress values tabulated for temperatures over 1,000°F apply only if the carbon content of the material is 0.04% or higher" under note 10 for Table A-3, for A312 TP304 My question(s) is: Can I use the pipe being supplied if its carbon content is at or...

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