TRV help!!!!.

[Looby45]

Good morning guys, please can someone help me. I recently removed an old Trv to unstick the pin. In doing so I broke the old one and now need to replace it. I have already tried the danross Randall but it didn't fit. I am at a total loss which one I need to replace it with or even how to measure what will fit! Really cannot afford a plumber to come out and would appreciate any one helping. I have attached a picture of the old Trv and the pipework the new one needs to fit on. Tia guys. Totally clueless lol

 

[Iamchamps]

Does the TRV head not have a make/model on it? If so search for that you will probably find the same head. If you can’t then you will probably need to change the whole TRV.

 

[Looby45]

The only thing I can see on the thermostat is that it is a danross and is probably 20-30 years old. I am looking for a whole replacement head but how do I know what size to get? My photo shows what the Trv head has to fit on to but how do I know what size that is? Hope this makes sense!

 

[denso13]

In doing so I broke the old one and now need to replace it

What broke, the pin or the head?

 

[Looby45]

The Trv head broke. I bought what I thought was a replacement head (danross Randall) but it didn't fit. There are lots of Trv heads out there but how do I know what one will fit the pipe fitting (as shown in the photo) Tia

 

[denso13]

Try this https://www.heatingcontrolsonline.co.uk/danfoss_table.php