Metric to Imperial

Discussion in 'Plumbing and Central Heating' started by GaytonTonner, 26 Nov 2010.

  1. GaytonTonner

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    I have some old 1" imperial copper pipe to connect onto to using end-feed fittings. Do I need a 28mm to 1" adapter? Who would sell these?

    On a general note does anyone know what sizes need a conversion adapter and what do not.

    What about compression fittings? Do they fit each equivalent size?
     
  2. namsag

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    1/2" to 15mm none required
    1" to 28mm none req
    3/4" TO 22MM Adaptor req

    Compression fit the same but on 3/4 you can get a 3/4 olive for the 22mm fitting but a copper olive will work just aswell
     
  3. GaytonTonner

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    Thanks. So only (3/4" - 22mm) is there an issue on end-feed copper? Just to clarify.

    I know 3/4" imperial olives are available for 22mm compression fitting. I would be weary of using a 22mm copper olive with 3/4" copper pipe. That is just me, I would not trust it..

    Maybe this information should be in a sticky.
     
  4. mysteryman

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    Don't use 22mm olives on 3/4! You can also get 3/4 O rings for some pushfit fittings.

    You may need to file inch copper down a bit to get 28mm fittings on to it.
     
  5. GaytonTonner

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    This 1" copper is fitted and not in a position to file down. :(
     
  6. TicklyT

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    Piece of emery tape looped around the pipe, and pulled back and forth does the job.
     
  7. GaytonTonner

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    thanks.
     
  8. Terrywookfit

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    Why not buy some 1" x 28mm Y1M, They are made for a reason.
     

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