"Anode" notvalid wrote in message
...
I want to join 15mm copper pipe to another pipe which is Imperial
polyethylene, Class C, low density to BS 1972/67, and installed around
1968.



John and Roger,

What has happened is I have eventually been able to find a local supplier of
that K1710KP fitting. It has a brass 15mm olive at the copper-connection
end, and a copper olive at the other end for the polyethylene-connection.
The nut at the polyethylene end has a finer thread than that at the
copper-connection end, and, so says a leaflet, is made of a copper alloy.

So it will make sense to use this specialist fitting now I have got it,
though whether the long-term end result will be noticeably different from
putting a 3/4inch olive in a standard fitting I do not know.

Thank you for your input.

Regards,

Anode.