Steve Walker wrote:

On 27/04/2018 17:01, Dave Plowman (News) wrote:
In article ,
Steve Walker wrote:
On 26/04/2018 23:47, Dave Plowman (News) wrote:
In article ,
Steve Walker wrote:
It's even worse when you mix imperial and metric: as you say, 15mm
(external) tube is interchangeable with 1/2" (internal) pipe - and they
are both copper, both tube (or both pipe if you prefer), but measured
differently!

The OD is not the same. You'll find end feed adaptors on sale.

Indeed they are, but many people wouldn't bother going specially to get
one and would just use a compression fitting, for which they are
interchangeable.

Ok. But i only use compression fittings were nothing else will do. I did
think there were both 15mm and 1/2" olives, though?

15mm and 1/2" are close enough not to need it. 22mm and 3/4" need
different olives.

SteveW

Nonetheless, you can buy them. I've had some 1/2" olives for some
years. And they were sold for metric fittings, not NOS.

--

Roger Hayter