Brass Unions

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by BimmerRacer, Aug 21, 2009.

  1. BimmerRacer

    BimmerRacer New Member

    Messages:
    174
    Location:
    Washington, DC
    [​IMG]

    Do I need to put anything between two halves or do I just crank it down to seal it?
  2. SewerRatz

    SewerRatz Illinois Licensed Plumber

    Messages:
    1,705
    Location:
    Chicago, IL
    Just tighten them down the ground face of the union will make the seal.
  3. BimmerRacer

    BimmerRacer New Member

    Messages:
    174
    Location:
    Washington, DC
    Thanks Ron!
  4. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,156
    Location:
    New England
    A couple of things...make sure the pipes are aligned when you tighten things up. And, especially if you overtighten, you may find you create a ridge on the sealing surfaces, so if you need to tak it apart, it becomes more difficult to seal unless you get it aligned perfectly.
  5. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,843
    Location:
    Cave Creek, Arizona
    unions

    I usually use pipe joint compound on the faces and the threads of the union nut to give some lubrication to the process.
  6. shacko

    shacko Master Plumber-Gas Fitter

    Messages:
    561
    Location:
    Rosedale, Md
    Unions

    Do to the fact that most fittings are made off planet, I also use a little pipe compound on the face, your choice. ;)
  7. BimmerRacer

    BimmerRacer New Member

    Messages:
    174
    Location:
    Washington, DC
    Thanks for the tips gents
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