Thermostatic radiator valve!!

[bricktop2]

Hi

I want to fit a thermo valve to a bedroom radiator but both existing valves on the radiator look the same, how do I know wjich is the feed and which is the return?? does it matter?

Thanks in advance

 

[scatmanjohn]

does it matter?

No.

 

[JonB]

The valves will be the same. Only the tops are different.
With the system cold switch on the heating & feel the pipes, the first one getting hot will be the feed.
Hope this helps .
JonB

 

[nickso]

certain rad valves can only be fitted one way or they may become noisy....others can be fitted either way

 

[Gas2Air]

Make sure it's a bi-directional valve body and it doesn't matter.

 

[bricktop2]

Thanks for the replys, I will have a look at it in the morning as i dont know if its a bi-directional valve or not, its quite important that it works properly as its for a babys room!!

Thanks

 

[JohnD]

Some valves have an arrow on the body to indicate direction of flow.

They may be noisy if fitted the other way round.