John Laird wrote:
On Mon, 10 Oct 2005 16:31:22 +0100, Richard Conway
wrote:

John Laird wrote:
On Mon, 10 Oct 2005 15:28:48 +0100, Richard Conway
wrote:


The ironic thing was the we needed a bit earlier and we went and
raided my grandfather's celler (all sorts in there if you can find
it!) We found the only bit of 28mm that he had, which was
literally about 4 inches long and just enough for what we needed
(or so we though!)


If he'd had it a while, it was probably 1 1/4".


1" surely - although I'm sure it wasn't as it fitted into a 28mm
compression joint with no probs, and as far as I'm aware at this size
the two ain't compatible.

Hmm, I certainly did mean 1". I thought it was 22mm that had no near
equivalent, but that 1/2"/15mm and 1"/28mm were reasonably
interchangeable.

Old 1/2" bore is near enough the same as 15mm OD
Old 3/4" bore is nearly but not quite, hence the need for an adaptor to
successfully solder it, the same as 22mm OD

Dave