Convertors/Reducers for all width copper piping

[John Moore]

Just bought a house thats got old piping in the bathroom.
I'm in the process of swapping bath taps, it has 3/4" hot and 1/2" cold feeds under the bath

I've bought two new hose connectors for the new taps, 3/4" to 22mm and 3/4" to 15mm, is there a convertor or reducer from 15mm to 1/2" and 22mm to 3/4mm

Thanks in advance

 

[JohnD]

the 22mm to 3/4" tap connector flexis fit onto a 22mm copper pipe at one end. And the other end fits onto a 3/4" bathtap. It doesn't need a converter.

you should have bought a pair of 15mm to 1/2" tap connector flexis for the basin.

22mm pipe is almost exactly the same size as 3/4" imperial copper pipe. Imperial pipe was measured by internal diameter, and metric pipe is measured by external diameter. You can buy a 3/4" olive to fit in your 22mm compression fitting if necessary, but start by checking if the supplied 22mm olive fits..

and 15mm pipe is almost exactly the same size as 1/2" imperial copper pipe.

you don't need a converter.

If your old pipe is iron or lead, please say.

 

[Madrab]

22mm pipe is almost exactly the same size as 3/4" imperial copper pipe

Nope, definitely not, 22mm olives are very loose on 3/4" pipe, it will never seal properly. Come across it all the time up here.

OP, I take it you are sure you have old imperial pipe? If so then ideally you will need to convert the 3/4" to 22mm as the 3/4" OD is about 21mm. That can be done with either a 3/4" olive in a 22mm compression fitting and some PTFE tape, you may need a few try's at this though to get it water tight as they're not always the best. Ideally a 3/4" > 22mm solder fitting with a tail of 22mm for a permanent fix.

The 1/2" pipe will take a 15mm compression fitting and olive ok as the OD of the pipe is much closer in size, the olives are usually just a little tight on the 1/2"pipe.

Always best to convert any imperial pipe to metric before using outlet connectors to minimise any future issues.

 

[JohnD]

Nope, definitely not, 22mm olives are very loose on 3/4" pipe, it will never seal properly. Come across it all the time up here.

you're right,I should have emphasised the olive swap more.

though worth trying the 22mm to make sure of the pipe size

 

[Madrab]

though worth trying the 22mm to make sure of the pipe size

Agreed ... always best to ensure the pipe sizes are known and a 22mm olive will be very loose, so it would certainly highlight if the pipe is imperial or not.

OP, your flexi pipes have a 3/4" or 1/2" tap end to fit the tap inlets, tap inlets are normally always imperial BSP sizes. It's the other metric end of the 22mm flexi that won't fit pipe if it's 3/4" imperial and you will need 3/4" olives. Note the asymmetric shape. The 15mm should fit fine, they'll just be tight going over the pipe, if you use a pipe slice

You do need to be sure that it's the actual pipe itself that is imperial and not just the tap fitting ends of the pipe.

 

[ianmcd]

Agreed ... always best to ensure the pipe sizes are known and a 22mm olive will be very loose, so it would certainly highlight if the pipe is imperial or not.

OP, your flexi pipes have a 3/4" or 1/2" tap end to fit the tap inlets, tap inlets are normally always imperial BSP sizes. It's the other metric end of the 22mm flexi that won't fit pipe if it's 3/4" imperial and you will need 3/4" olives. Note the asymmetric shape. The 15mm should fit fine, they'll just be tight going over the pipe, if you use a pipe slice

You do need to be sure that it's the actual pipe itself that is imperial and not just the tap fitting ends of the pipe.

WOT no green rings !!!!