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Thread: Hubless coupling questions.

  1. #1
    DIY Junior Member Mike58's Avatar
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    Default Are there limits on use of shielded hubless couplings?

    I am installing an ABS DWV system in new construction. Does the UPC limit the use of shielded hubless couplings, or can they be used just like a glued coupling (vertically and horizontally)?

    I have places where it looks like the easiest (possibly only) solution to get the ABS glued together is to leave out a section and then put it in after everything else is glued up, with a hubless coupling on either side.

    Are there any tips to help ensure the hubless couplings don't leak (for example, is there a preferred lubricant/sealant to use to help them settle in and seal well as they are tightened)?

    Also, I find two styles of shielded hubless couplings. One has a smooth shield, and the other has a corrugated shield. Is one style better than the other (the corrugated shields seem to cost less, and look like they may have thinner metal)?

    Thanks
    Last edited by Mike58; 05-24-2010 at 10:03 PM.

  2. #2
    Retired Defense Industry Engineer jadnashua's Avatar
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    Default

    No sealant is required. If you really want to do it right, you'd use a torque screwdriver to tighten them to specs. Don't know whether one version is better than the other.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  3. #3
    DIY Junior Member Mike58's Avatar
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    Default

    Thanks jadnashua.

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