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  • Users: khatarnak
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  1. khatarnak

    Shutdown Interlock Numbering on P&IDs

    Hi, Is there a good way to develop Interlock numbering schemes on P&IDs. Should it be done on an equipment by equipment basis ? Like a high level transmitter in a vessel has the same interlock number as the inlet SDV. The low level transmitter has the same interlock number as outlet SDV...
  2. khatarnak

    PSV Sizing for Shell and Tube Heat Exchanger

    Hi All, I would really appreciate any help on this matter. Typically, I have sized PSVs for tube ruptures in a heat exchanger since the tubes were always at higher pressure. I ahd done these using API 520 and formulas in CRANE book. What do I need to do and what formulas to use if the shell...

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