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  1. n9ne0hse7en

    API 650(F) Tank Stamped Design Pressure

    Hello, I am a process engineer evaluating the venting systems on a number of tanks designed to API 650(F) in the 1990's-timeframe. I have noticed that a number of tanks have a stamped "design pressure" on the nameplate that is far lower than the MAWP pressure that would be calculated using the...
  2. n9ne0hse7en

    API 521 Question- Insulation Credit for Environmental Factor

    Hi, new member here just getting into my first analysis of PSV sizing using the environmental factor for API 521 fire case sizing. Per API 521 4.4.13.2.7, it appears that insulation properties (e.g. thermal conductivity) should be calculated at the AVERAGE insulation temperature during a fire...
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