Radiator corner valves

[68breakbreak]

hi,
I am running copper pipes, to install 3x radiators. My wife wants pipework coming horizontally out of the wall, so I have purchased corner valves (in anthracite) to go with the new rads.

This is giving me a bit of a headache! I have chased 15mm pipework into the walls to allow for a horizontal connection to the valve, and I was planning to mortar in and secure all these pipes in with the radiator in situ so the pipe ends up in the correct place.

My problem is once I have done this, I’m going to need to remove the radiator so that plastering, skirting, painting can be done. I cannot see how I’ll be able to reconnect the radiator once the pipework is rigidly fixed in place, because of the way the radiator sits on the bracket, and the way in which the pipework needs to attach to the corner valves.

Does anyone have any advice on how to deal with this?

Many thanks
Simon

 

[Newboy]

The radiator valve has (unless you've bought a 'Chinese special') an almost flat union to connect to the radiator tail. With everything in place you should be able to undo the backnut holding the valve to the tail and lift the radiator off the wall.

The pipework in the wall should be protected from attack by the mortar (or plaster) and you should also allow for the expansion & contraction of the pipework or you risk the plaster cracking.

 

[68breakbreak]

Thanks for the reply. The tail is essentially 15mm pipe, and the valve doesn’t disassemble. Therefore there isn’t a flat connection, and the valve has to slide over the tail pipe. A Chinese special as you Say?

 

[Newboy]

Your only option in this case is to leave the valve on the radiator tail and loosen the pipe connection hoping that there's enough room to bring the rad forward to free it from the pipework.

Good luck when the valve starts leaking! e.g. https://www.diynot.com/diy/threads/angled-towel-rail-valves.532464/#post-4478850

 

[68breakbreak]

I’d gladly buy a new valve if I could be sure I’m just not going to have the same problem. It’s difficult to see online if the connection is flat , or requires sliding the valve over the connection.

 

[Crezzer]

99% of trvs use that connection you have, unfortunately there is no easy way of getting the valve on and off when the pipes come out the wall like that.

 

[Newboy]

99% of trvs use that connection you have

Well fit the 1% that don't then!

Drayton/Peggler/Danfoss

 

[Crezzer]

Do they do corner TRV's?

 

[Newboy]

Angled TRV & lockshield

 

[dilalio]

In this instance you'll need angled valves and a long street elbow to pop up into the bottom of the valve... Still looks neat as