Connecting to old galvanised steel pipe

[Phil]

I am in the early stages of quoting for a job where the customer wants a couple of outside taps putting at each end of his gararge. At the moment there is a solid concrete floor with galvanised steel pipe (outside diameter 27mm) which goes into a leaky old stoptap with rust around the join. The other side of the stoptap goes into 15mm copper to a small sink in the gararge, it is into this pipe I will tee off to go to the new taps.

I know these old pipes are probably measured on the inside diameter and will be in imperial but what kind of connector will I need and will I have to cut a thread on the end of the pipe? Is it possible to get a new stoptap (which he wants) with the inlet excepting the galvanised pipe and the other 15 mm ?

In peoples experience is it easy to make a good connection?

Also he wants the pipework done in plastic, which would be best Speedfit, Hep2o etc?

Thanks.

 

[Alanka]

You can cut a thread and screw on iron-to-copper fittings (probably 1/2"), or you can use 'Johnson' couplings. These are basically compression fittings with rubber seals that tighten onto the iron pipe (no thread needed). They're ugly things but do work.

Any of the plastic pipe systems will do the job, but I use mostly Speedfit.

 

[Phil]

Cheers for that, after doing a bit of research I have found a Primo-fit adaptor, I still think speedfit are ugly though.