Plumbing: connecting 22mm and 3/4 pipe

irnbru_2

I need to re-route some pipe work which is imperial 3/4.
The pipe I'm replacing is connected bewteen two Tees.

The imperial pipework have collars on them raising the diameter before entering the Tee. I presumed that some 22mm x 1" Female compression couplers would work but it looks like the Tee requires 1 1/4" fittings. The only reducers that I can find require 35mm on the metric side.

So I'm wondering if there are any off-the-shelf everything-included compression fittings I can buy which will let me attach the two pipe diameters?

TIA.

gas4you

Buy a standard 22mm compression T and fit 3/4" olives in the connection as needed for the 3/4" pipe

irnbru_2

gas4you wrote: »

Buy a standard 22mm compression T and fit 3/4" olives in the connection as needed for the 3/4" pipe

Apologies, just so I understand it in the simplest terms: I can cut the 3/4 pipe and use it in a 22mm fitting with the 3/4" olive?

I've read that would work with 15mm and 1/2" but hadn't for 3/4" pipe.

Forris

Speedft do a 22mm - 3/4 pushfit adapter,

Try here (its the last item at the bottom of the page - Ref SFOC2);
http://www.casupply.co.uk/acatalog/Speedfit_Plastic_Plumbing.html

Wookey

irnbru wrote: »

Apologies, just so I understand it in the simplest terms: I can cut the 3/4 pipe and use it in a 22mm fitting with the 3/4" olive?

I've read that would work with 15mm and 1/2" but hadn't for 3/4" pipe.

The 3/4" olive has a slightly thicker ring to make up for the difference between 22mm and 3/4", this allows a snugger fit onto the 3/4" copper, ask for a 22mm x 3/4" compression ring. Another option is to solder a 3/4"x22mm reducer onto the 3/4" copper and then work from the 22mm end it will provide.

andyhop

irnbru wrote: »

Apologies, just so I understand it in the simplest terms: I can cut the 3/4 pipe and use it in a 22mm fitting with the 3/4" olive?

I've read that would work with 15mm and 1/2" but hadn't for 3/4" pipe.

Only the 1/4 sizes differ from imperial to metric, 15mm,28mm,40mm,54mm all the same

Use either imperial rings or soldered straight 22x3/4

irnbru_2

Wookey wrote: »

ask for a 22mm x 3/4" compression ring.

Thanks.

Don't suppose you've a URL for a stockist of these?

Will try the local plumbing merchants.

irnbru_2

irnbru wrote: »

Don't suppose you've a URL for a stockist of these?

Is this it?

Got a Plumb Center nearby which seems to stock them.

andyhop

irnbru wrote: »

Is this it?

Got a Plumb Center nearby which seems to stock them.

yes thats them

All good plumbing merchants carry these fittings, Sometimes reffered to as green rings