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  1. nealc

    Pressure parts?

    In my understanding of the code, this is somewhat left up to the engineer. I do alot of design work on non-standard valves or "valve-like" components and systems, so make these decisions regularly. At a mionimum, ask yourself "If this material fails, what will happen". If...
  2. nealc

    DIN WB36 Material--ASTM Equivalent?

    You might check the ASM website - thye have a new program which is supposed to be a great cross-reference of materials, I am just now looking into it and cannot vouch yet for it, but person who told me about it had used it successfully www.asminternational.org/materialsinfo
  3. nealc

    Units on Graphs

    Thanks for the help...counterintuitive it seems.. but efective!
  4. nealc

    Recommended pipe velocities for hot thermal oil

    Very application specific question. I reularly see systems for loading and unloading similar oils (at blending plants) into tank cars where the velocity is 10-15 ft/s, and most gas and diesel is loaded at 15 ft/s and higher. For these, systems have lasted 15+ years with schedule 40 A105 piping...
  5. nealc

    Units on Graphs

    I am trying ot create flow graphs based on a calculated Cv value, with pressure loss shown in PSI. Function works and gives me default units of lb*ft^-1*sec^-2, at which I insert psi and all is well However, when I try to graph it, I get the default units, if I type psi in the y column I get...
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