Results 1 to 22 of 22

Thread: brazing fittings onto beer keg

  1. #1
    Join Date
    May 2010
    Location
    ct.
    Posts
    1,377
    Post Thanks / Like

    brazing fittings onto beer keg

    I want to modify a beer keg and am wondering if brazing might be easier or cheaper than buying s.s. wire and tri mix for mig.
    Would brazing have to be done with some sort of filler containing nickel, chromium etc.?
    Miller a/c-d/c Thunderbolt XL
    Millermatic 180
    Purox O/A
    Smith Littletorch O/A
    Hobart Champion Elite

  2. #2
    Join Date
    Nov 2012
    Location
    new york city
    Posts
    6,918
    Post Thanks / Like

    Re: brazing fittings onto beer keg

    silver solder may work.
    i.u.o.e. # 15
    queens, ny and sunny fla

  3. #3
    Join Date
    Feb 2008
    Location
    North of Philly
    Posts
    20,159
    Post Thanks / Like

    Re: brazing fittings onto beer keg

    Silver solder would be my choice. Just make sure to clean up the flux after you are done.
    .



    No government ever voluntarily reduces itself in size. Government programs, once launched, never disappear. Actually, a government bureau is the nearest thing to eternal life we'll ever see on this earth!

    Ronald Reagan

  4. #4
    Join Date
    May 2010
    Location
    ct.
    Posts
    1,377
    Post Thanks / Like

    Re: brazing fittings onto beer keg

    I never thought of using silver solder.
    Miller a/c-d/c Thunderbolt XL
    Millermatic 180
    Purox O/A
    Smith Littletorch O/A
    Hobart Champion Elite

  5. #5
    Join Date
    Dec 2013
    Location
    Pa
    Posts
    896
    Post Thanks / Like

    Re: brazing fittings onto beer keg

    aren't kegs made out of aluminum?
    Millermatic 211
    Miller Syncrowave 350lx with cooler and tigrunner
    Thermal Dynamics cutmaster 81
    1955 National Cylinder Gas O/A setup with original patina

  6. #6
    Join Date
    Jun 2008
    Location
    Hardwood Lands, Nova Scotia, Canada
    Posts
    1,899
    Post Thanks / Like

    Re: brazing fittings onto beer keg

    aren't kegs made out of aluminum?
    Any one I've drained ...err seen has been s/s.
    Ditto re the silver solder, just make sure that wherever you put the fitting it doesn't buckle away from the heat while you're soldering it. Once you get it blue (too hot) your going to have to stop and clean it and start again.....Mike

  7. #7
    Join Date
    Nov 2012
    Location
    new york city
    Posts
    6,918
    Post Thanks / Like

    Re: brazing fittings onto beer keg

    if you chose to go that route make sure you use food grade silver solder. no lead, zinc or cadmium.
    i.u.o.e. # 15
    queens, ny and sunny fla

  8. #8
    Join Date
    Oct 2013
    Location
    N. Arizona
    Posts
    266
    Post Thanks / Like

    Re: brazing fittings onto beer keg

    I modified a keg to serve as a pressurized fuel tank for a race car.... silver solder worked fine.

  9. #9
    Join Date
    Feb 2014
    Location
    Iowa
    Posts
    499
    Post Thanks / Like

    Re: brazing fittings onto beer keg

    Quote Originally Posted by That Guy There View Post
    aren't kegs made out of aluminum?
    All I've seen are.

  10. #10
    Join Date
    Jul 2011
    Location
    Long Island, Socialist Republic of NY
    Posts
    2,900
    Post Thanks / Like

    Re: brazing fittings onto beer keg

    Quote Originally Posted by Teggy1 View Post
    All I've seen are.
    EVERYONE I've seen are stainless. I've never seen an aluminum one. They look like they're aluminum but they are not.
    TA Arcmaster 300
    CM3
    XMT 304
    S22P12 suitcase feeder
    X-Treme 12VS
    Optima pulser
    TA161S
    Maxstar 150STL
    Hypertherm PM45
    OP setup
    Stihl 020AVP, 039, 066 Magnum

  11. #11
    Join Date
    Jan 2013
    Location
    ...Shoulder of Orion...
    Posts
    3,509
    Post Thanks / Like

    Re: brazing fittings onto beer keg

    @ jpump5 - check out this article on welding, brazing, and silver soldering on 304L SS beer kegs:

    http://morebeer.com/brewingtechnique....6/palmer.html

    Options abound. The method you select will depend on your skill level, tooling, and desired outcome.
    "Discovery is to see what everybody else has seen, and to think what nobody else has thought" - Albert Szent-Gyorgyi

  12. #12
    Join Date
    May 2010
    Location
    ct.
    Posts
    1,377
    Post Thanks / Like

    Re: brazing fittings onto beer keg

    -ManoKai-Thanks for the link,it's just what I was(or should have been) looking for.


    As for keg material,I don't know that I've ever seen an aluminum beer keg.
    Miller a/c-d/c Thunderbolt XL
    Millermatic 180
    Purox O/A
    Smith Littletorch O/A
    Hobart Champion Elite

  13. #13
    Join Date
    Dec 2013
    Location
    Mount Tabor VT
    Posts
    7,692
    Post Thanks / Like

    Re: brazing fittings onto beer keg

    Maple syrup (properly pronounced surup) equipment was for centuries made of stainless steel sheet products bent and soldered with 50/50 lead and tin. 20 years ago, the people who worry about that sort of thing started worrying about lead exposure. Syrup from all over VT was tested, consistently found to be low in, but not free of lead. A study ensued, and it was found that most of the small amount of lead in syrup was found in the ground water that makes up 99.something % of sap. Oh well by this time the consuming public being made aware of it, wanted equipment to be lead free. At first we used antimony solder instead if lead. Tough stuff to work with! Silvabright, a solder with a three metal composition worked better. These days it is all done with Tig. The welders, who were formerly solderers are masters with a tig torch. This fall at G.H.Grimm I had the treat of watching one of them make a simple kettle. They have, for each joint a machined back up fixture through which they flow purge gas.

    Either TIG or solder work, TIG being the easier technique. Purge gas being the challenge in a vessel you can't get inside. I'd ask Steve, (Otto Nobetter), he does this stuff.

    A small number are aluminum.


    Solder must be done with a big electric copper. It is tricky to get the first of the stainless hot enough to begin to melt solder. The liquid flux has a short half life, once the joint is begun it is easier, a process much like TIG except flux, and copper not gas and torch. Clean with Scotchbright and wire brush.
    Last edited by Willie B; 02-16-2014 at 09:13 AM.

  14. #14
    Join Date
    Feb 2014
    Location
    Iowa
    Posts
    499
    Post Thanks / Like

    Re: brazing fittings onto beer keg

    Quote Originally Posted by Drf255 View Post
    EVERYONE I've seen are stainless. I've never seen an aluminum one. They look like they're aluminum but they are not.
    I've only cut two apart. One for a still, while in college, and another for a fuel tank on a dune buggy, which was TIG welded to add an aluminum filler. After doing some research, kegs are made from BOTH materials, less commonly aluminum. So while my previous experience with aluminum kegs led me to believe the appearance of stainless steel keg was aluminum, there are kegs made from both materials.

  15. #15
    Join Date
    Feb 2014
    Posts
    13
    Post Thanks / Like

    Re: brazing fittings onto beer keg

    I've seen some coated inside and out with a coating. Would hate to melt that and then drink it.
    Using Tapatalk

  16. #16
    Join Date
    Nov 2012
    Location
    new york city
    Posts
    6,918
    Post Thanks / Like

    Re: brazing fittings onto beer keg

    i believe miller uses rubber coated kegs.
    i.u.o.e. # 15
    queens, ny and sunny fla

  17. #17
    Join Date
    Dec 2013
    Location
    Mount Tabor VT
    Posts
    7,692
    Post Thanks / Like

    Re: brazing fittings onto beer keg

    We've made some beer vessels. Kegs are hard to come by. Breweries don't want to sell them. Buying a keg of beer paying the 50 dollar deposit and not returning it is enthusiastically discouraged. They are selling un labeled ones at high price for maple syrup storage. Open topped containers aren't a problem, purging is relatively easy. Closed top, I haven't done I'm not sure how to purge, maybe fill the whole container with gas.
    I haven't seen coated kegs.

  18. #18
    Join Date
    Oct 2007
    Location
    central michigan
    Posts
    738
    Post Thanks / Like

    Re: brazing fittings onto beer keg

    the old Falstaff mini kegs that held a case of beer equivalent may have been aluminum. I have one on the garage shelf in Michigan,but i'm in florida and cant check it.
    miller thunderbolt 250v
    lincoln square wave tig 175 pro
    lincoln idealarc mig sp250
    everlast tig 210EXT
    everlast power plasma 50
    chicago electric (hf) 130 tig/90 arc
    chicago electric 90 amp flux wire
    3 sets oxy/acet

  19. #19
    Join Date
    Feb 2014
    Location
    Moncton, New Brunswick, Canada
    Posts
    12
    Post Thanks / Like

    Re: brazing fittings onto beer keg

    The majority of breweries switched to stainless in the early 80s. Prior to that there were a lot of aluminium kegs that were filled from the side and then tapped with a spear from the top.

  20. #20
    Join Date
    Oct 2008
    Location
    New Jersey (yeah it sucks)
    Posts
    691
    Post Thanks / Like

    Re: brazing fittings onto beer keg

    Get a quote from Skolnik...A couple of us wino's bought a few drums years ago and prices were not really that bad.
    http://www.skolnik.com/product.php?p...ss_steel_drums

  21. #21
    Join Date
    Mar 2009
    Location
    western ma
    Posts
    24
    Post Thanks / Like

    Re: brazing fittings onto beer keg

    I have "Silver Soldered" several fittings into SS kegs. My son is a home brewer and is constantly up grading. Ditto on the food grade silver. Just be sure everything is clean.

  22. #22
    Join Date
    Oct 2012
    Location
    East Van BC
    Posts
    1,130
    Post Thanks / Like

    Re: brazing fittings onto beer keg

    you can use a nickel rod to braze stainless, much cheaper than silver, but does not flow as nice.
    SqWave 200
    Millermatic 190
    Airco 200 AC
    Hypertherm PM45
    Boice-Crane Band Saw
    Victor O/A

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Page generated in 1,632,139,853.88559 seconds with 13 queries