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Zoomup's pipes

Chris Pearson

Hived off from the electrical section.

Pitch believed to be 1.5mm.

Z

Pictures. I had to saw through the pipes to get a socket onto the fittings to get them to turn for removal. They were rusted onto the steel pipes

Parents

  • So is that  just a very short steel bolt of the right thread with a plain hole though it , perhaps conically cupped to retain the O ring, and then a flare on the pipe end to retain the O ring from the other side.?

    To be fair if so you can probably remove the rust with a mild acid pickle - try kilrock ? (or others sear by citric acid or vinegar or cold stewed tea overnight - the pros needing speed use dilute hydrochloric acid but it's a bit of a faff for a couple of small parts at home ) and re-use. The hard part then will be getting the right flare angle on the new pipe ends.

    If they need to be remade, then how sure are you of the 1.5mm thread pitch? was that with a thread gauge? - could it be 16TPI which is close enough to 1.5mm to get a couple of turns and then jam. Also need the OD to the nearest 0.1mm or so,  and the profile (metric are 60 degree Vee normally but 55 and 47 are seen in other standards.)

    Mike

Reply

  • So is that  just a very short steel bolt of the right thread with a plain hole though it , perhaps conically cupped to retain the O ring, and then a flare on the pipe end to retain the O ring from the other side.?

    To be fair if so you can probably remove the rust with a mild acid pickle - try kilrock ? (or others sear by citric acid or vinegar or cold stewed tea overnight - the pros needing speed use dilute hydrochloric acid but it's a bit of a faff for a couple of small parts at home ) and re-use. The hard part then will be getting the right flare angle on the new pipe ends.

    If they need to be remade, then how sure are you of the 1.5mm thread pitch? was that with a thread gauge? - could it be 16TPI which is close enough to 1.5mm to get a couple of turns and then jam. Also need the OD to the nearest 0.1mm or so,  and the profile (metric are 60 degree Vee normally but 55 and 47 are seen in other standards.)

    Mike

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