Weeping Radiator Valve

[DYS]

I have a weeping/leaking radiator valve. Is it possible to replace an upstairs radiator valve without draining the system, I cannot find the drain point. Any help would be much appreciated

many thanks

 

[corgiman]

where is it leaking from?

 

[DYS]

The leak is from the valve stem

 

[Chris_J]

Remove the lockshield cover or valve cover and tighten up the olive. A few of mine used to weep when the system was cold, and this sorted it.

 

[DYS]

Chris_J - thanks for that but tried with no success.

Would it be possible to tie off the ball valve at the tank, release the radiator and capture water from the radiator. Would this allow gravity release of upstairs water only to allow valve renewal without full drain of system ?

Any help would be appreciated

 

[corgiman]

you can but it would be messy

do a search on draining systems

 

[DYS]

I'm clutching at straws now ...

Would it be possible to freeze the pipe then replace the leaking valve. Is this reasonably straighforward and if so what do I need.
any advice would be appreciated

thanks