Thanks for previous answers. I have aquired a 3/4 but this doesnt seem to convert to a 15mm pipe.?

Question

I bought a 3/4 to 22mm connection along with a reducing insert of 22 to 15. Am i right in thinking this should work and if so are these inserts used without an olive

Answer 1

Ok. Let's sort out our measurements first. 15mm is 0.59 inches. Can I assume you want to go from a 3/4 inch pipe to a 1/2 inch pipe and can I assume were talking about copper pipes? If so, these are standard sizes and you and get an adapter anywhere plumbing supplies are sold.

22mm, however, is 0.87 inches, which is actually bigger than the 3/4 (0.75 ) inch pipe you started with. So you don't want to go from 0.75 to 0.87 to 0.5 inches (19mm to 22mm to 15mm).

Sorry if I'm missing any info as I didn't see your previous questions/answers.

We need to clarify what kind of pipes you dealing with (copper, PVC with compression fittings, or ...?) The other question is what is the 15mm pipe attached to? Can you change a section of pipe to match up to something more standard?

Answer 2

you are trying to connect imperial to metric ......you must use all metric ..olives are for compression fittings only ..