3/4" olives in 22mm compression fittings.

[doracake]

Hi,

I have to tee into an old 3/4" pipe for a new shower.

I read somwhere you can get 3/4" olives to go into standard 22mm compression fittings.

Is this the done thing? If so are they readily available?

cheers!

 

[Millsy 82]

Basically they are copper olives.

 

[Simon F]

just ask at your local merchants for some 3/4" olives.
they are a noticeably different shape ( or at least the ones I have are )

 

[doracake]

Thanks Simon, that's what I'll do. cheers

 

[Guest123]

They are also known as green rings as they are colour marked as such. Any plumbers merchant and larger B&Q stores sell them in packets. I compress them first onto the pipe, slacken off the coupling and wind about 8 turns of PTFE tape around the olive/pipe end and they then go into the metric fitting as a nice snug, tight water proof joint.

You can also get JG Speedfit push fit fittings which are 3/4 to 22mm and they are excellent. I get mine here:
John Guest Speedfit JG Speedfit Conversion Connector (size: 22 X 3/4 NC2324)

Yorkshire also make a soldered fitting.

 

[AWheating]

Basically they are copper olives.

the 3/4 olives i have on the van are brass.

 

[Guest123]

the 3/4 olives i have on the van are brass.

All the ones I've got and have ever seen are brass too. Never seen copper ones before.

 

[GQuigley67]

you can get both, not a fan of the cheap soft copper crap since they are always bashed

 

[kirkgas]

just ask at your local merchants for some 3/4" olives.
they are a noticeably different shape ( or at least the ones I have are )

all the ones i use are round, but the 3/4" x 22mm ones are smaller bore and have a green mark on them

 

[Bernie2]

Hmm! Yes quite common to use them especially when we first went metric? I know I was there Ha! Ha!

 

[scotty plumber]

I call them green rings just as system mentioned

 

[Simon F]

just ask at your local merchants for some 3/4" olives.
they are a noticeably different shape ( or at least the ones I have are )

- and they are copper, checked they are 3/4" - just a bit to small to fit a 22mm pipe

 

[kirkgas]

you also get 3/4" x 22mm york st couplings, obviuosly you need a bit more room to fit 2 of these with a 22mm tee in between, but its always another option, and soldered ones wont leak later

 

[WaterTight]

Every time I've bought 3/4" olives they've been copper. Bought them from various merchants, online and in B+Q. Maybe it's a regional thing.

 

[TBServices]

- and they are copper, checked they are 3/4" - just a bit to small to fit a 22mm pipe


View attachment 6779View attachment 6780View attachment 6781

Never seen these before. Ones I get are just normal brass olives


Sent from my iPad using Tapatalk HD

 

[doracake]

The guy in the plumb. shop did refer to these as Green rings. They seem to have done the trick.

Cheers gents!

 

[amextess]

- and they are copper, checked they are 3/4" - just a bit to small to fit a 22mm pipe


View attachment 6779View attachment 6780View attachment 6781

Simon, which way do these olives fit?, is the thick end nearer the body or the nut?
Allan

 

[Simon F]

Simon, which way do these olives fit?, is the thick end nearer the body or the nut?
Allan

I hope someone answers this question, its also been bugging me...:uhoh2:
only picked these up a few weeks back and have not needed them as yet.
I would go with just see which way seems to fit/work best

 

[Guest123]

The thick end goes into the fitting and the narrow end is onto the pipe end. They look similar to the old olives found in drifted fittings back in the day. Smear some paste, like Boss white round the narrow end before slipping them onto the pipe.

 

[Best]

The tapered 3/4 " olives like those, are probably made that way to suit various fittings which may have larger tapers. The long taper goes to the fitting, as said.
Usually the ordinary 3/4 olives do most fittings ok. Ones I see are brass.
A heavy 22mm olive can be used if it is compressed slightly till it is a tight fit for 3/4" pipe. Then it can be compressed fully to make a square on joint, (not twisted as most 22mm olives would be ).

 

[amextess]

The tapered 3/4 " olives like those, are probably made that way to suit various fittings which may have larger tapers. The long taper goes to the fitting, as said.
Usually the ordinary 3/4 olives do most fittings ok. Ones I see are brass.
A heavy 22mm olive can be used if it is compressed slightly till it is a tight fit for 3/4" pipe. Then it can be compressed fully to make a square on joint, (not twisted as most 22mm olives would be ).

Can you confirm that they way I have the olive in the picture is the correct orientation? cheers Allan

 

[Best]

Yes, that's the correct way. Always the short taper towards the nut & the long taper to the fitting.

 

[Best]

Do first tighten the joint & then undo it to check olive is compressed fully & grips the pipe, then a smear paste.
3/4" pipes are heavier, stronger pipe than new pipe, so olive, needs tight (without over tightening obviously)

 

[amextess]

Best, thanks, done a few comp joints in my amateur diy life, but just wanted to make sure as I'm replacing my lead main and stopcock tomorrow.
Allan

 

[Best]

Good luck with the new mains! As Kirkgas said, solder imperial-metric connectors are tops if possible.

 

[Guest123]

Good luck with the new mains! As Kirkgas said, solder imperial-metric connectors are tops if possible.

Not a big fan of plastic but the JG Speedfit 3/4 x 22mm conversion push fit straights are tops in my book too.