Connectng 8 mm microbore pipe to 15 mm raditor valve

[Sandy43]

I have to replace a radiator with a larger size. I have micro bore 8 mm
pipes and want to connect to the radiator valves with internal reducer
15 mm to 8 mm. I have bought the kit which is 3 pieces.

It seem ok where the 8 mm olive goes but the packet does not explain
which side goes into the 15 mm of the valve. Other thing is
Do I need an 15 mm olive as well?

If an explanation with the pictures or proper instruction are available, I would really appreciate.

Or a web link might help.

 

[BingoBongo]

thinner of the two parts nearest the nut / 8mm olive (not 15 ) / then the mushroom type part sits atop the pipe.Agood lick of ptfe tape would be an idea and make sure the 8mm isnt buckled/dented

 

[dextrous]

If one end of the reducer is longer, then this slips into the 15mm valve, then the olive, then the other end. No further olive is required.

 

[gas4you]

How big (powerful) is your new rad? It may be too big for 8mm pipe now

 

[Sandy43]

The present size of the radiator is about 450mm x 600 mm.
I like to install a 450 mm x 1200 mm.
my whole house has micro bore pipe based heating and
my other rooms have 450 mm x 1200 mm radiators as well.

The 8 mm pipe comes out of 22 mm feeder after the 2 port valve.

Please advise.

 

[snb]

you will be fine on that size rad as long as the 8mm only serves that rad and the flow is great enough.