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  1. Kivan

    323.2.2(d) Note 3-B31.3

    Thanks, for your response, but in my piping system, originally pneumatic test will be performed (345.5), because hydro test is dificult due to, piping system is very complex for perform hydro test Based on 341.1(b). Moreover Design pressure is very low. In basic engineering considerations, MDT...
  2. Kivan

    323.2.2(d) Note 3-B31.3

    Hi, I have a question, i use 323.2.2(d) (2), because my MDT is more lower that -48C. Then by Note 3, if stress ratio is more lower that 0.3 impact test exeption is valid. In 323.2.2(d) (1) (temperature more highter that -48C) hydrostatic test shall be performed, for use impact exeption...

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