new radiator valve leaking, please help :(

[scottishhero]

Hi all,

I have recently removed my 2 downstairs radiators because i eas having the room plastered. While i was at it i thought i would replace the radiator valves.

All is ok, i read alot and managed to get all valves on ok with no leaks for 3 weeks now. The problem is not i am putting the rads back on the wall.

3 of the 4 valves are perfectly fine, but the 4th which is a drain off valve is dripping from the thread going into a coupler on the rad. I have drained and tightened and retaped twice! Panicing now as booked new floorong to be done Friday!

The only thing i can notice is the original valve threads are wider apart and maybe spikier if that makes sense, so they are a MUCH tighter fit. The valve is made by plumbsure, i csnt imagine the thread is different vetween the drain off valve and the normal ones?

Please help!

 

[Dan Robinson]

Are you talking about the thread on the rad insert?

 

[bazdaman]

Whack a load of ptfe on it should be ok unless the threads are stripped

 

[scottishhero]

Yea its the bit that goes into the rad so there is not olive or whatever.

I put a good amount of tape on it, like i said the thread on the old partseems different so not sure if thats why?

 

[Dan Robinson]

Only if you have stripped it. It should be a standard ½ " thread.

 

[scottishhero]

Only if you have stripped it. It should be a standard ½ " thread.

It really is fine, no idea what to do

 

[willsgas]

try loctite 55 instead of ptfe.