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Thread: Compression fittings

  1. #1

    Default Compression fittings

    Im doing some small plumbing work in my house, so I need some education on compression fittings. Can you use the brass compression fittings on any type of copper piping or just the thin, coil type pipe? I have some length of 1/2" "M" type piping which needs to be joined to a 5/8" threaded, female nut (braided sink line). I wasnt able to find a comparable sweat joint, only compression fittings at the local "big box" store. This would also make my life easier in some of the tighter spaces rather than trying my hand with the solder and torch.

  2. #2
    Retired Defense Industry Engineer jadnashua's Avatar
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    Sep 2004
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    21,434

    Default

    Compression should be fine. Although, not sure if one is allowed inside a closed wall...
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  3. #3

    Default

    Yes you can use a compression fitting on M copper.But I havent seen any kind of fitting for a 5/8 female nut.Usually sink supplies hook up with a 3/8 OD compression fitting.

  4. #4
    In the Trades kordts's Avatar
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    Oct 2005
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    exurban Chicago
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    Default

    Read my answer at the other site you posted on.

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