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  1. BB2018

    ASME B16.5 1977 and A181 gr 1

    Good. That confirms my #. Two other questions 1) Why did 16.5 delete "Non shock" verbiage from code book. In regards to listed flange pressure 2) would you happen to know MSYS for API 5 L in B31.3 1984 edition Thanks again
  2. BB2018

    ASME B16.5 1977 and A181 gr 1

    Thanks AWDMike. Sorry I typed "-1" instead of "-I" problem is others were suggesting hydrostatic test pressure of 1125 PSIG for this material flange (class 300). I am afraid that will be to much. Should be 620 x 1.5 = 930 and round up to next 25 psig increment = 950 PSIG max. Thanks for the info.
  3. BB2018

    ASME B16.5 1977 and A181 gr 1

    Can anyone confirm ANSI/ASME B16.5 1977 edition lists A181-1 Flange material as group 1.4 which is 620 psi at 100°F?

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