removing rad- how to turning trv valve off

[jamiller]

I have to remove a rad with a trv. Can someone confirm how I ensure the valve is definately turned off so I do not flood when the rad is off (if the temp drops for example). Many thanks.

 

[Nige F]

Only by replacing the head with the special cap that was sold with the valve when new

 

[HarrogateGas]

It depends on TRV make and model.....some have a 0 posiion this is an off position. Some just go back to a frost setting. A cap is a sure way but a lot of TRV dont come with caps now at the 0 position does the same job.

 

[JPC]

or go to ur local shed and buy a rad cap (1/2 and 3/4 sizes sold) and screw it onto the rad valve

(or tap connectors, which u have dead ended)

 

[jamiller]

thanks for all help.

 

[Softus]

With some TRVs you can fit a penny under the head, which pushes the pin down further when you GENTLY tighten the head onto it.