Changing radiator valves on microbore pipework.

[Mgrant]

Is changing radiator valves on micro bore pipe a tricky processes with them being prone to leaking after? I no changing them on 15mm pipe is easy, cutting off the old olive etc. Any tips for changing them on micro bore pipework?

 

[JCplumb]

Like for like you may be fine with the old olives but be prepared to cut back some pipe and stick a length of new stuff on there if it doesn't.

 

[Chalked]

You could solder a 10x 15 reducer and use 15mm valves if there isn't any movement in the pipework.

 

[Mgrant]

So do you usually leave the olive on if micro bore? I'm swapping some old valves for trvs. At moment the radiators don't have trv's on. Guessing this doesn't class as like for like?

 

[leethegasman]

8mm and 10mm olive cutters good bit of kit when changing valves

 

[Mgrant]

And what if the valves that are in at the moment have internal reducers in them. Not a 10mm olive.

 

[Chalked]

And what if the valves that are in at the moment have internal reducers in them. Not a 10mm olive.

Copper or plastic?

copper , I'm afraid it's cut and sold new piece of pipe or reducer.
good lock with plastic!

 

[Mgrant]

Is copper so if it's an internal reducer its a new bit of pipe, it can't be re-used?

Copper or plastic?

copper , I'm afraid it's cut and sold new piece of pipe or reducer.
good lock with plastic!

 

[Ermintrude]

We use the bulldog ones day in day out. They do 8 and 10. The 15 to 8 reducers are awful!

Jet blue on joints. Make sure joints and cuts are square and a good fit. I would only recommend tight fits to a seasoned pro! !

 

[Mgrant]

when changing radiator vales on 15mm pipe do most people cut the old olive off and put new nut and olive on the pipe?

 

[Ermintrude]

Yes looks tatty / chrome valve and manky old nut !

 

[winqbear]

Always replace the olives because on 10mm soft copper most times pipe has been crushed through over tightening but as some one said earlier be prepared to solder new lengths of pipe in when pipe is badly deformed