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  1. afrig

    ASME B31.1 - Administrative controls such as "car seal open" or "locked open" on

    Good morning all, Does anyone know if an administrative control such as a car seal open or a locked open device is acceptable as per ASME B31.1 code? ASME B31.1 - para 122.2 (A.3) states that when a valve might be closed on a blowoff or blowdown line, the whole line shall be design in...

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