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  • Users: Annonymous
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  1. Annonymous

    HDPE for Compressed Air?

    I have been doing some research on this topic and I've found that there are mixed feelings. My question is, can I use HDPE pipe (DR7) for an underground compressed air system at around 170psi? I'll start with what I found. B31.8 has a limit of 100 psi on thermoplastic pipe. But this is for...
  2. Annonymous

    Wind Case - Height Above Ground Level?

    When specifiying wind loads, CAESAR asks for a "Height Above Ground Level". There's been some uncertainty as what this means, is this grade elevation or is this the HEIGHT ABOVE GROUND LEVEL? i.e., if the first node of my pipe model is at 115'-0" and grade is at 110'-0". Is the input...

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