One of the radiators in my house has stuck lockshield valves on both sides.
It does not have a TRV, only lockshield valves.
One valve is rusty and I do not want to risk touching too much.
The other one looks clean but it is completly stuck, it won't open or close.
At the moment both are fully open, but I need to be able to close at least one.
I have put some WD-40 in the union of the shaft and the body of the valve but it has not made a difference.
Apparently someone tried to close it with pliers before because the top of the shaft has lost most of the square shape.
It is difficult to access the valve and it is difficult to apply a tool properly to transfer enough force.
I want to avoid removing the valve because that would require draining the system, obviously, but also, and more importantly, it would require a lot of work breaking some woodwork what is boxing up the pipes and valves.
Any ideas of how I can close that valve?
Thanks,
Antonio