connecting old copper pipes

[Chalked]

This is the only image I can find on google. This pipe is brass, but it's the same for copper and they have brass fittings.

 

[babbster]

A drift won't work Ray. It sounds like screwed copper, it it slightly larger than 22mm. Normally found in old high end houses. Nobody makes a transition fitting, and the threads are " fine taper" so BSP is nowhere near. The copper is as thick as galvanised pipe, so great for scrap.
The times I have connected to it, we used a 1"BSP male to 22 mm compression fitting. The 1" thread will slide over the pipe and either solder it using leaded solder ( I know!!) or better still hard solder or braze. Then you have a 22mm compression end to go off.

Thank you
will give it a try tomorrow, exactly as you said, old high end house

 

[Masood]

Came across this pipe in the Leicestershire area (if it's the same stuff). Heavy gauge copper, screwed. It's called 20-gauge and you can buy compression and end-feed transition couplings for it. The end-feed couplings are brass and cost a fortune but it means you can convert to 15mm or 22mm and weigh in the old stuff...