TRV Question

[alig31]

Hi I am installing new radiators and changing the TRVs for more modern ones. My question is with respect to the original pipework there is a TRV 'body' in place which the old TRV fitted to. Should I change the TRV 'body' or just screw the new head onto the existing body.

thanks in advance.

AliG

 

[Ch4 plumbing]

Fire up the heating and see if the existing bodies work, with the head off the rad should heat up.

Presuming there are no existing issues with the system.

I would add if you have the whole valve then I would change the whole thing, no point putting a new head on and the body failing a week later.

 

[PlumbBobBob]

that's if the new heads fit on the old valves