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  • Users: gord1
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  1. gord1

    PSV Discharge Line

    Thanks both Latexman and lizking: It is an existing one and BB (Sorry for that, Latexman, we use CONV, BB(Balanced Bellows) and Pilot for simplicity) is used for relief. I am following a rule without choked flow in tailpipe and 6" should be fine(back from 10 psig to discharge line of PSV)...
  2. gord1

    PSV Discharge Line

    Thanks Latexman: The key is that discharge pipeline reaches choked flow when back from 10psig to PSV discharge point. This is the reason why I can not figure it out. Thanks again for your input.
  3. gord1

    PSV Discharge Line

    A scenario for fire case. Pset = 525 psig Relief Pressure = 1.21*525+14.7 = 649.95 psia Relief Temp = BP@Relief Pressure = 220 F Latent Heat: 95 BTU/LB BB PSV is selected. Max rated capacity is 64000LB/HR Calculated area from Safety Engineer is API 2H3 (0.785in^2). Now the existing discharge...

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