Plastic inserts

[Gorners]

Hi - replacing some radiators on 10mm microbore pipework, the valves I am planning to use (opposite to TRV) are these:

https://www.screwfix.com/p/chrome-angled-radiator-valve-10mm-x/51257

Will I need to use plastic inserts with these on the plastic pipe? Or copper? Not sure what type of microbore it is. If there are already some in place can I reuse these or would you recommend replacing?

 

[CJRatch]

Is the microbore copper or plastic?

If the microbore is copper it won't require an insert. You may get away with reusing the old olive and nut to fit the new fitting otherwise the old olive will need removing first.

If the microbore is plastic it will require a standard plastic insert not the super seal inserts. If theres already an insert, which there should be it can be left in and reused. Again you may get away with reusing the old olive and nut. If not it will need removing first.

 

[Gorners]

Thanks, sorry should have said it’s plastic. Will try and reuse but in case I need new - is this what I need?

https://www.screwfix.com/p/flofit-flo-fit-fxi1o-pipe-inserts-10mm-50-pack/55253

 

[CJRatch]

If plastic it should already have an insert otherwise you've been lucky it's not leaked over the years.

There's a few different pipe brands which do their own inserts the I'm not sure if they're all the same diameter or not.

If you can see a length of the pipe on show it should state the manufacturer.

The ones you have linked are for floplast pipe I'd guess though the pipes more likely JG in which case you want the below inserts.

https://www.screwfix.com/p/jg-speedfit-tsm10np-inserts-10mm-10-pack/22734

May be a gamble finding the right ones unless you can see pipe brand.

highly likely though an insert is already present and you may be able to reuse old olive and nut.

 

[Gorners]

Nice one mate thanks a lot - there doesn’t appear to be anything printed on the pipe itself (it’s grey rather than white), may have rubbed off, but I can see on some of the push fit connectors on the water pipework are have JG logo, so suspect that’s the one.

 

[CJRatch]

On that basis I'd give the 10mm JG inserts I linked a try before any.

 

[dilalio]

Bloody minibore

 

[Gorners]

Quite. Jut realised, having wanted to swap a single to a double radiator, the pipes are too close to the wall to meet the double rad valve. Done things backwards, the floor on was only done last year so can’t modify the pipe to move it out.

Any bright ideas or or am I stuck with a single? Need to go out about another 40mm.

 

[dilalio]

So you've got 10mm plastic minibore coming out of the floor to the valves? Nice

Do you have the room to put on an enlarger to 15mm and then go into the valves with 15mm copper to try and hide the minibore as much as poss!

 

[Gorners]

Hah, yes, but have some pipe covers over them so don’t look too bad, but not copper I admit

Looks like pipe even too close to skirting to get an enlarger on.

What about something like the elbow below going into the rad pointing ‘back’ to the wall, with the valve/TRV going into this being adjacent to the radiator. Not sure if that would give me 40mm but might get close and wouldn’t look to bad I don’t think.

https://www.manomano.co.uk/catalogu...-bush-thread-adapter-3356149?model_id=3356149