10mm pipe to 15mm trv

[SafeGasInstall]

I have a job to change some valves , pipes are 10mm and valves are 15mm standard ! Do I need to get new reducers or will I be able to reuse the old ones ? Do I need a 10mm olive removing tool if I have to change the nuts ?

 

[Barry98]

If you do Stan I have a tub full of them will send you some down fella , there left over from that leeds job

 

[SafeGasInstall]

I need them for Saturday , so I will get them from local shop mate . Would not think they will be expensive !? Do I need a tool to remove old ones is the question and do I need to replace them .
Never worked on a 10mm pipes .....

 

[Barry98]

i just use my nipex pliers

 

[EPH]

Junior hacksaw to cut down through them, then put a thin flat head in the cut and prise it apart.

Careul not to cut all the way through the olive and into the pipe.

A lot of 10mm rad valves seem to have different size nuts and threads!

 

[SafeGasInstall]

i will be using standard 15mm Honeywell , so I will be ok to pull them out with grips ?

 

[Barry98]

if you have a touch like a lesbian - yeah

 

[EPH]

Depends how tight and how much the olive is co pressed on the pipe.


Make sure when you re fit that the 10mm goes in the valve as straight as possible too.

 

[Simon F]

because 10mm is soft copper, or is it plastic?
anyway the olive is likely to be crushed onto to pipe,
just carefully cut it as described earlier.
I just swapped a load recently they were all crushed but plenty of paste and the new reducing set and everything was good

 

[Roger Welton]

I always use my dremel with a cutting disk, being careful not to go into pipe then small flathead to 'ping' it open, did use jr hacksaw but can sometimes be awkward.

 

[Destroyer2813]

Might be worth putting lsx on them Stan if the old olives are crushed onto the pipe

 

[SafeGasInstall]

I always use my dremel with a cutting disk, being careful not to go into pipe then small flathead to 'ping' it open, did use jr hacksaw but can sometimes be awkward.

What is a dremel ?

 

[rocketmanbkk]

It's a multi tool thing.

You got any work my way Stan?

 

[SafeGasInstall]

I have this rad job to do Saturday and boiler change near Ruislip

 

[Roger Welton]

What is a dremel ?

I have this one, DREMEL® 8200 (8200-1/35) - Dremel

 

[SafeGasInstall]

Boiler change is next Monday

 

[buckley plumb]

from what you said they sound like the brass thick 15mm to 10mm reducers that come with some rad valves e olive and reducer in one piece will take ages to cut with hack saw .i would take some pipe and 10mm fittings just incase you may end up cutting back and redoing tails

 

[SafeGasInstall]

I might end up getting lots of reducers and fit valves to 15mm copper

 

[buckley plumb]

I might end up getting lots of reducers and fit valves to 15mm copper

15mm to 10mm end feed reducer soldered onto 10mm pipe then compress the reducer into the valve looks better as you only see the 10mm pipe

 

[Leo21]

Stan if the threads are 1/2 bsp on to the compression end, its a straight swap. If the olives are crushed in pack it a few times with ptfe. I do these all the time mate, avoid cutting olives off if you can. Because you'll need a box of plasters!

 

[Billy Bob Bob]

I have a job to change some valves , pipes are 10mm and valves are 15mm standard ! Do I need to get new reducers or will I be able to reuse the old ones ? Do I need a 10mm olive removing tool if I have to change the nuts ?

is this the new lad you were on about lee?rrr:

 

[northcarr]

Junior hacksaw to cut down through them, then put a thin flat head in the cut and prise it apart.

Careul not to cut all the way through the olive and into the pipe.

A lot of 10mm rad valves seem to have different size nuts and threads!

Yep I found out the hard way about the threads the hard way I had given a price to change 8 rad valve's I thought it would be strighforward lol

 

[tamz]

Wouldn't recommend cutting the old olives off unless you really need to. The pipe below the olive is usually deformed.
If the 10mm is rising from below the floor you will have a bit play on it. Just cut off the old valves below the nut. If they are on drops with no play cut them back and use soldered reducers to go into the valves.

 

[SafeGasInstall]

They are 10mm coming from the back of the rad split each way

 

[EPH]

They are 10mm coming from the back of the rad split each way

Sounds lovely, where's the job?