TRV for Radiator with 3/4" tail

[Mike Callaghan]

I am trying to source TRVs for my 20 year old CH System.
The radiators have tails that measure 22mm OS dia I understand they are described as 3/4" all the TRVs available seem to be 1/2" (15mm).
I also have a mixture of 15mm & 8mm pipe work.
Can anyone help please.

 

[Rob]

you will need to replace the tails aswell. make sure you get yourself a radiator allen key and plenty of PTFE.

 

[ollski]

Yep change all the tails and get the correct size valves for the pipe ie 8 & 10mm or 15.

 

[Mike Callaghan]

Thanks for the advice, but the tails supplied with the TRVs are 1/2" the thread into the rad's is 3/4" is there an adapter/reducer if so what is it called?.
Many thanks

Mike

 

[Nige F]

3/4to1/2inch bush