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  • rustyfence
    replied
    Thanks Mal and sprezzatura. Went the ebay route - nevertheless thanks sprezzatura for checking your scrap inventory! Barring mistakes with bending and brazing, I should have a little left over ... if anybody else runs into the same predicament.

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  • Dimal
    replied
    If you don't mind waiting for a little bit, I've used these people in the past for various bits and pieces and found them to be honest and relatively quick when you factor in where it's coming from...

    Mal.
    Attached Files

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  • sprezzatura
    replied
    I’ll have a look around and see if anyone else has some 12mm

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  • rustyfence
    replied
    Originally posted by sprezzatura View Post
    12mm OD with PTFE olives & 1/2” BSBP female caps. Overall 380mm usable.
    Thank you kindly sprezzatura. That would be perfect for the shorter thermosyphon pipe, but I won't impose on you for it yet because I will still need to source a longer piece for the other pipe - will let you know how I go.

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  • sprezzatura
    replied
    12mm OD with PTFE olives & 1/2” BSBP female caps. Overall 380mm usable.
    Attached Files

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  • Lyrebird
    replied
    Originally posted by rustyfence View Post

    unfortunately I don't have swaging kit at home. Reducing (rather than expanding) looks like it requires some serious gear?
    A 5% reduction doesn't need anything fancy, you can do it with a torch, a hammer and a lot of patience.

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  • sprezzatura
    replied
    I found one piece - it’s in descale. I’ll send you an image tomorrow.

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  • rustyfence
    replied
    Originally posted by sprezzatura View Post
    I’ll take a look in my brass/copper bin ??
    Yes please, would appreciate it!

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  • sprezzatura
    replied
    I’ll take a look in my brass/copper bin ??

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  • rustyfence
    replied
    Originally posted by sprezzatura View Post

    Hey! I might have some (not new). What length?
    Hi sprezzatura, thanks for checking. Second hand is fine. 1x550mm and 1x350mm pieces would cover it, including allowances for bends and trimming the ends and brazing mistakes. A pic below of the original tubes, for interest.

    Hi Lyrebird, not very familiar with swaging and unfortunately I don't have swaging kit at home. Reducing (rather than expanding) looks like it requires some serious gear?

    Attached Files

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  • sprezzatura
    replied
    Originally posted by rustyfence View Post
    Hi,

    I'm making thermosyphon lines to replace some unserviceable ones as part of a La Pavoni pub rebuild at the moment. The old copper tubes were 12mm outer diameter, with compression (mushroom) fittings brazed on each end.

    I've found some new end fittings of the correct (original) size, but I can't find a supplier of 12mm copper tube. Standard plumbing copper tube is 1/2", which is close, but too big for the end fittings.

    Unfortunately most advertisements for "12mm" copper tube turns out to be 1/2" in reality.

    Anyone know where I can source metric 12.0mm OD copper tubes suitable for espresso machines?

    Thanks!
    Hey! I might have some (not new). What length?

    Leave a comment:


  • Lyrebird
    replied
    More or less impossible to find 12mm in Australia but copper tube is easy to swage to size.

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  • rustyfence
    started a topic Copper tube

    Copper tube

    Hi,

    I'm making thermosyphon lines to replace some unserviceable ones as part of a La Pavoni pub rebuild at the moment. The old copper tubes were 12mm outer diameter, with compression (mushroom) fittings brazed on each end.

    I've found some new end fittings of the correct (original) size, but I can't find a supplier of 12mm copper tube. Standard plumbing copper tube is 1/2", which is close, but too big for the end fittings.

    Unfortunately most advertisements for "12mm" copper tube turns out to be 1/2" in reality.

    Anyone know where I can source metric 12.0mm OD copper tubes suitable for espresso machines?

    Thanks!
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