Half inch or 15mm pipe fittings question

[ShaunCorbs]

Thanks mate. I'll use a copper 15mm olive. So basically if the 15mm olive goes over the pipe it's all OK yeah? Should I use PTFE around the olive as belt and braces?

No you can use some jointing compound if you want to

And correct

Now depending on how cheap your fittings are you might need to use a round file on the nut

 

[Marty1979]

No you can use some jointing compound if you want to

And correct

Now depending on how cheap your fittings are you might need to use a round file on the nut

OK mate thanks again. What brand should I buy so that I don't have to file down?

 

[Best]

OK mate thanks again. What brand should I buy so that I don't have to file down?

Buy a conex brass connector. Expensive, but worth it.
They are good quality and the body of the fitting is a slacker fit on the pipe, so very suitable for the 1/2” pipe, plus the brass conex nuts are slack on pipe, unlike the nasty standard cheap fittings

 

[Marty1979]

Buy a conex brass connector. Expensive, but worth it.
They are good quality and the body of the fitting is a slacker fit on the pipe, so very suitable for the 1/2” pipe, plus the brass conex nuts are slack on pipe, unlike the nasty standard cheap fittings

Bless ya mate and thanks very much. Learning all time!

 

[Best]

Bless ya mate and thanks very much. Learning all time!

No problem at all Marty. Use a smear of paste around the olive of any compression joints. V2 Lube is very good, but expensive

 

[John Harwood]

My water supplier did the rising main conversion from lead to copper some years ago... Can you believe they chopped off the lead pipe outside the house then used a lead-lok connector to attach the plastic incomer to the lead pipe... So I still have a short length of lead just outside my house. Apparently the pipe had been converted to copper on the INside of the building, jointed a couple of inches above floor level. I suppose the plumber thought that for quickness' sake it wouldn't matter that the pipe through the wall was left as lead.

 

[ShaunCorbs]

My water supplier did the rising main conversion from lead to copper some years ago... Can you believe they chopped off the lead pipe outside the house then used a lead-lok connector to attach the plastic incomer to the lead pipe... So I still have a short length of lead just outside my house. Apparently the pipe had been converted to copper on the INside of the building, jointed a couple of inches above floor level. I suppose the plumber thought that for quickness' sake it wouldn't matter that the pipe through the wall was left as lead.

Yep normal for the waterboard

 

[Jim Goodenough]

From a lil bit of experience on copper,,,, 1/2" - 15mm you can join, 1" - 28mm you can join (need to do a bit of filing, sanding, tapping etc sometimes )...........
3/4" - 22mm forget it, buy some 3/4" olives and some 3/4" - 22mm end feed or solder ring couplings, just don't allow it to slide when soldering .

 

[Ric2013]

Just as well the OP's working with 15mm then.

To be fair, most of my local merchants don't have 15mm-1/2" transition couplings, but I buy them mail order because I cannot be bothered to risk the chance that I'll find a half inch pipe somewhere I can't easily sand down, and having the right part somehow feels much more professional anyway.