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Thread: Conduit Seals: Class I, Divisions 1/2 Groups C & D vs Groups A & B

  1. #1
    Join Date
    Apr 2016
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    Maryland
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    Conduit Seals: Class I, Divisions 1/2 Groups C & D vs Groups A & B

    LNG and Chemical plants are largely Groups C & D. Occasionally, we see a small patch of Gp B (Hydrogen), but the question I have is: are there any significant differences in conduit sealing requirements for Groups A & B locations vs C & D in either Divisions 1 or 2?

  2. #2
    Join Date
    Feb 2003
    Location
    Illinois
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    No difference in the requirement for the locations of seals, but not all seals are listed for Groups A and B. Same applies to other fittings used in Class I, Division 1, Group A & B locations.
    Don, Illinois
    Ego is the anesthesia that deadens the pain of stupidity. Dr. Rick Rigsby
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  3. #3
    Join Date
    Apr 2016
    Location
    Maryland
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    265
    Quote Originally Posted by don_resqcapt19 View Post
    No difference in the requirement for the locations of seals, but not all seals are listed for Groups A and B. Same applies to other fittings used in Class I, Division 1, Group A & B locations.

    Thanks for the input.

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