Brazing....

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by chefwong, Jul 22, 2010.

  1. chefwong

    chefwong New Member

    Messages:
    710
    Location:
    District of Columbia
    Any of ya'll braze...

    What should a clean braze look like or not ?
    Or due to the sheer amount of heat, a brazed joint will never look as clean as a solder joint...

    Just comparing/looking at the quality of joints my HVAC guys is doing.
    Sofar, his joints don't look too good..but nitrogen test is holding ...
  2. Doherty Plumbing

    Doherty Plumbing Journeyman & Gas Fitter

    Messages:
    810
    Location:
    Penticton, BC
    A brazed joint will ALWAYS look ugly. They're impossible to do and have the piping look like it would had you soldered.

    As long as there is a good bead of what ever the tech used to braze around the joint then it's all good.
  3. Redwood

    Redwood Master Plumber

    Messages:
    7,450
    Location:
    Connecticut
    The only good looking braze joint you will ever see is a factory braze job that they have cleaned buffed and made pretty...

    Al the rest are just butt ugly but they work....
  4. mckeand13

    mckeand13 Engineer

    Messages:
    68
    Location:
    Milwaukee, WI
    If solder holds and looks better then why braze?
  5. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,262
    Location:
    New England
    Brazing is stronger...
  6. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,032
    Location:
    Cave Creek, Arizona
    For four reasons.
    1. It will NOT fail during a fire, which is why copper gas lines CANNOT be soldered.
    2. It is stronger
    3. The flux used for soldering joints is MURDER on an airconditioner's compressor.
    4. You could NOT solder that pinched connection and expect to get a good joint.
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