Radiator removal

justlittleoleme

I've removed rads in the past but where we live now they have what I've been told are Ras-d thermostatic valves. I need to get a rad off the wall to decorate & although I can work out how the cap piece is removed how do I then go about removing it ie: draining. help appreciated

A.Penny.Saved

When TRV's are fitted a cap is often required to seal the valve to prevent water coming out when it is disconnected. From the spec sheet there is a blanking cap mentioned as sold separately, but it's not clear whether this is the one that is needed.

If you can be positive that the valve is sealed then the valve can be unscrewed from the Radiator and the water drained out of the Rad into a small pan and bucket(s). The water in the heating system will be sealed by the valves which are left on the pipes.

My TRV's came supplied with the required shut off cap.

Leif

I've seen two types. In one case removing the TRV exposes a spigot which needs to be turned, using a spanner, to close off the pipe. In the other case the spigot needs to be pushed down to close off the pipe. You do this using what I think is called a blanking cap, basically a cap with a screw thread, which screws onto the valve stump and pushes the spigot down closing the valve. Mine came with the valves, and I made sure I saved them for future use. If a previous owner had the radiators fitted, you might try and search through the bits and pieces in the garage, just in case they were saved.

Once the two end valves are sealed, you then drain down the radiator, making sure you have plenty of towels down in case of spills. You are best to find a good guide, there are some online, and on YouTube I believe. It is not hard, but you could make a mess, so caution is advised.

27col

Good luck in finding the caps that came with the valves. I stored mine away carefully when I installed thermostatic valves. Never been seen since.

justlittleoleme

thank you for your replies. the previous owner has not left the caps - guess they were thrown away when she moved! I appreciate your replies - wish us good luck!