Results 1 to 9 of 9
Like Tree5Likes
  • 2 Post By Lyrebird
  • 1 Post By Lyrebird
  • 1 Post By Dimal
  • 1 Post By coffeeguy84

Thread: plumbing fabrication for broken pipe

  1. #1
    Member
    Join Date
    Jun 2011
    Posts
    38

    plumbing fabrication for broken pipe

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    hi all,

    I broke off the pressure release valve thread when i trying to remove this pipe. It's off a Isomac Tea duo
    Now it's stuck inside this pipe and can't be removed without damage.
    Replacing the pressure release valve is easy but now i'm after this pipe which is impossible to find.

    I've tried for the last 4 weeks and have gotten nowhere.

    Does anyone know where i can get this part fabricated in Melbourne....or anywhere else in oz?


    thanks in advance.
    Attached Images Attached Images

  2. #2
    Senior Member Jackster's Avatar
    Join Date
    Nov 2017
    Location
    Maddington, Perth. Wa
    Posts
    981
    What is it? 1/4 or 5/16" copper?
    Surely a few tube fitters local to you?
    If not, Blackwood's sell the olives, and nuts. Just need to anneal the tube and bend it. Tighten the nuts to seat the olives.
    I'd be bending the short side before cutting the pipe to length. It looks a bit tight

  3. #3
    Senior Member Lyrebird's Avatar
    Join Date
    Jun 2018
    Posts
    544
    Coffee machines don't commonly use olive compression fittings.

    The exact parts required are available from site sponsor Coffee Parts, eg if they are 3/8 fittings on an 8mm tube you need parts 527854 and 700000. Anyone who can braze can fit them to the tube. If you can't find anyone locally I'll do it for you FOC if you buy the parts and send them to me (I'm in Willy most of the time, Beechworth the rest).
    chippy and Jackster like this.

  4. #4
    Member
    Join Date
    Jun 2011
    Posts
    38
    Thanks guys.
    I have no idea how to work out if its 1/4 inch or not. I'll have to take it to bunnings and try other fittings to see if it fits.
    Might take yiu up on your offer Lyrebird.
    I'm not far from willy.

    Will keep you posted

    Cheers

  5. #5
    Senior Member Lyrebird's Avatar
    Join Date
    Jun 2018
    Posts
    544
    Two methods:

    1. Measure across the inside of the threads of the part that is not stuffed. Metric threads are just BSP in disguise* so as a rough guide, subtract 5mm from the ID of the thread then divide by 25 to get the inch size eg if the ID of the thread is 11mm, 11mm - 5mm = 6mm , 6 divided by 25 = 0.24 so it's 1/4".

    2. Simpler but less reliable: check what size spanner fits across the flats: a 1/4" fitting is usually 14mm, a 3/8" usually 17mm and a 1/2" usually 22mm.


    To measure the tube diameter: wrap it in a piece of masking tape, cut the tape along the tube with a razor blade, unwrap it, measure the width between the cuts and divide by Pi.



    * The ISO just adopted the British standard and changed the names to confuse everyone.
    Last edited by Lyrebird; 5th December 2018 at 02:31 PM.
    Dimal likes this.

  6. #6
    Member
    Join Date
    Jun 2011
    Posts
    38
    Hi Lyrebird,

    I've purchased the olives, nuts and pipe required but not sure what type of brazing i need to get.
    I went to Bunnings to buy a blow torch to braze but realised i'm not sure what type of brazing i need to do. (silver solder???)
    Can you please advise me what type of brazing sticks i need?
    Would love to give it a go myself. Might need you as back up if i stuff it all up

    thanks again.

  7. #7
    Mal Dimal's Avatar
    Join Date
    Oct 2004
    Location
    Warwick, QLD
    Posts
    16,869
    Yep, Silver Solder would be perfect.
    Need to grab a small tub of appropriate flux too...

    Mal.
    spin_addict likes this.

  8. #8
    Member
    Join Date
    Jun 2011
    Posts
    38
    Update

    Thanks all guys. I used 45% silver solder and it worked a treat. Borrowed a flame thrower from a shop so didn't have to buy one.
    Even though it wasn't the problem with my coffee machine i can now get back to troubleshooting it.

    cheers.

  9. #9
    Member
    Join Date
    May 2014
    Posts
    48
    What is the problem ? BTW ....What machine ?
    Maybe the Brains trust here can help ....
    Good Luck with it...
    spin_addict likes this.



Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •