Bushings and gas lines

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  • This topic has 4 replies, 5 voices, and was last updated 24 years ago by Avatar photoet.
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    • 8 Sep 2002 at 4:20 pm #278210
      Avatar photoBill
      Member

      What are the reason bushings are specifically prohibited from gas lines? Why not reducers?

    • 11 Sep 2002 at 11:11 pm #298007
      Avatar photoracefanone
      Participant

      Bushings have a tendency to crack if over tightened.This is what I have been told by gas inspectors.Course any fitting would,but with a bushing it is easier to do .

    • 12 Sep 2002 at 8:04 am #298008
      Avatar photoSelgas
      Participant

      I am assuming correctly I hope that you are referring to a reducing bush like say from 20mm to 15mm (3/4 to 1/2) that could be used to reduce the size of a gas pipeline – if this is the case we use them all the time and they comply with our stringent Acts and Regulations – providing they have tapered threads.

    • 23 Sep 2002 at 2:58 pm #298009
      Avatar photoTheLocalPlumber
      Participant

      Bell Reducers are approved gas fittings for reducing pipe sizes on a run.
      Bill
      The Local Plumber
      Tustin, California http://www.TheLocalPlumber.com

    • 24 Sep 2002 at 11:20 pm #298010
      Avatar photoet
      Participant

      You are absolutey correct on your answer Localplumber. At least under UPC, IPC, and NFGC…
      The reason no bushing is allowed is the run may (MAY) have condensation form in the pipe. A bell reducer will allow this to continue on in the pipe, a bushing acts as a little catch that allows standing condensate to start corrision.

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