I am trying to add thermostatic radiator valves to a system that was installed 20-30 years ago. The existing pipework to the radiators is microbore, but seems to be a size intermediate between 8mm and 10mm. My guess is that it's an imperial size of microbore (3/8" perhaps?)
Any thoughts about what it may be and how to adapt to 8 or 10mm fittings?
Cheers,
Mike
fittings?
Air conditioning piping still tends to be Imperial, and BES sell it online with fittings - may sort you out
My 1978/79 catalogues only list 8 or 10mm - so maybe yours is older?
Geo
Can you use a solder joint to a piece of 10mm pipe?
Sure... and 8mm
The message from "Michael Chare" contains these words:
There was indeed 3/8" pipe but that was 3/8" bore so the o/d is likely to be over 10mm. Could be 1/4" bore if the wall thickness is as great as larger bore pipes but I have no figures to confirm.
Thanks for all the suggestions. Actually solved the problem by borrowing a nifty little pipe expander that stretched the end of the tubing up to 10mm OD for compatibility with metric fittings.
Mike
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