3/4" <-> 22mm conversions

Get a 3/4 x 22mm coupling

Cheers Gilbert

gilbert wrote: Oops! er, from the main page go pipe and fittings > capillary and scroll down Cheers Gilbert

Thanks Gilbert. I was hoping to reuse some of the compression fittings. But looking at the price of the 3/4" x 22mm compression couplers on that site it would probably be cheaper to change all the pipes to 22mm.

These olives are designed for copper pipe, so I&#39;m not sure if they&#39;d be right for plastics. On copper they are perfectly fine. I use them a lot on the older building we keep maintained. The old 3/4&#39;&#39; copper pipes are starting to show some weakness after many, many years of service, but we don&#39;t always replace whole sections of it at a time, so we always keep a store of these olives at hand. We&#39;ve never had any problems so far.

That&#39;s good to know - most of my pipes are copper anyway. I have also read that there is a difference between plastic and copper imperial pipes - where 3/4" copper pipes were measured by the internal diameter and 3/4" plastic by the outer diameter. It seems strange, but might explain the problem I had.

Thanks for your help.