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Granby "Rhino-Tuff" tank (similar to Roth) but with cast aluminum connections

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mrblint
mrblint Member Posts: 44
edited May 15 in Oil Heating

Is there any issue with connecting the incoming metal pipe to cast aluminum threads? Does it require special fittings to prevent galvanic corrosion? There's a galvanized steel fitting that attaches to the cast aluminum threads.

https://www.rhinotufftanks.com/product/190-gal-double-wall-granby-tank/

Comments

  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 18,373

    @mrblint

    Since it is for fuel oil it must be approved for that purpose. I would install it in accordance with the MFG instructions.

    EdTheHeaterMan
  • mrblint
    mrblint Member Posts: 44
    https://forum.heatinghelp.com/discussion/comment/1855681#Comment_1855681

    I'm getting bids for a tank replacement, and just didn't know if that would be an OK design to consider.

  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 18,373

    @mrblint

    Granby sells a lot of tanks as does Roth. I wouldn't be concerned.

    heidef
  • mrcoder
    mrcoder Member Posts: 102

    Galvanic corrosion tends to be a problem for water lines. AFAIK for oil lines it is not a problem.
    It does not hurt to apply an oil rated thread sealant (dope). Make sure to leave the end of the pipe thread section ( 2mm maybe) clear, to prevent the dope getting into the oil line.

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