Imperial to metric olive - Which way?

[Marcus Jones]

Hello all. I’m replacing a stop tap which is connected to black alkathene and then feeds the flat in 1/2 inch copper. I’ve bought a 22mm stopcock, along with some imperial to metric olives. These are the ones which taper on the one edge. Which way do these go? Tapered edge INTO the 22mm fitting or the other way round? Thank you.

 

[Marcus Jones]

Are you saying the black pipe will be 1/2”?

The black pipe is the incoming mains which then reduces down to either 15mm or 1/2 inch copper. Having mulled all this over, I’m considering abandoning the replacement of the stopcock and fitting a new 15mm stopcock further along.

 

[Harvest Fields]

The black pipe is the incoming mains which then reduces down to either 15mm or 1/2 inch copper. Having mulled all this over, I’m considering abandoning the replacement of the stopcock and fitting a new 15mm stopcock further along.

If you do this and you have 1/2” pipe you will need 2 x old to new connectors and some copper pipe.

 

[Marcus Jones]

If you do this and you have 1/2” pipe you will need 2 x old to new connectors and some copper pipe.

Thanks for the help. Much appreciated.

 

[sammathias]

15mm copper will not connect straight to 1/2” copper. You will need an old to new connector.

Yes it will?? I always just use a 15mm end feed coupling?

A 3/4 pipe will need an adapter old to new..

 

[Stigster]

15mm copper will not connect straight to 1/2” copper. You will need an old to new connector.

I've always found them to be so close in size that the fittings are interchangeable on the 15mm - 1/2". The 22mm - 3/4" are way out so need an adapter but you have problems with the 15 to imperial?

 

[Harvest Fields]

I've always found them to be so close in size that the fittings are interchangeable on the 15mm - 1/2". The 22mm - 3/4" are way out so need an adapter but you have problems with the 15 to imperial?

Never had one that went on properly, had to use the correct fitting

 

[Welder]

I've always found them to be so close in size that the fittings are interchangeable on the 15mm - 1/2". The 22mm - 3/4" are way out so need an adapter but you have problems with the 15 to imperial?

My experience is as yours Stig.
My take on the images is top. Why? Because the longer taper is far more accommodating of dia. Look at the short end. It is perfectly matched with the olive.
Just my two penneth