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aluminum fuel tank - best welding practice

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  • #16
    Originally posted by WillieB View Post
    ...I'd be surprised if 90 gallon tanks would be a big problem. I'd still keep the holes in baffles small, maybe only at the bottom. Two per tank wouldn't be a bad thing.
    For what it's worth... my 41ft Morgan displaced around 27K pounds... would expect this 45 footer to be in the same neighborhood.... tanks are typically mounted way below the water line ....
    Sooooo.... a 650lb tank would probably not make much difference against that mass... I would baffle it well though...

    27K divided by 643 = 41.99 or 2.381% of the total displacement... Not a Lot...
    Last edited by H80N; 03-27-2015, 08:56 AM.
    .

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    • #17
      The two tanks are completed. 3/8 NPT couplers welded in, clean out ports, filler necks, and draw tubes.

      The owner did the cutting himself with a circular saw, carbide tipped blade, and piece of flat bar as a fence. He did an alright job, I did what I could with the fit up - from what you can see some of the joints were not ideal, but pressure testing both came out fine. Both tanks have two baffles each.

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      Stainless process piping - welder & fitter

      Miller Dynasty 280DX
      Jet band saw
      Dewalt chop saw
      Assorted IR air tools and Metabos

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      • #18
        A few more photos.

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        Stainless process piping - welder & fitter

        Miller Dynasty 280DX
        Jet band saw
        Dewalt chop saw
        Assorted IR air tools and Metabos

        Comment


        • #19
          Originally posted by CODE4 View Post
          The two tanks are completed. 3/8 NPT couplers welded in, clean out ports, filler necks, and draw tubes.

          The owner did the cutting himself with a circular saw, carbide tipped blade, and piece of flat bar as a fence. He did an alright job, I did what I could with the fit up - from what you can see some of the joints were not ideal, but pressure testing both came out fine. Both tanks have two baffles each.
          Nice job, well done
          Richard
          West coast of Florida

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