Can you identify this TRV type please All aspects of plumbing questions and answers, help, tips and information

[marsocky]

Hi, can anybody identify what type of TRV this is please? It was fitted approx 2001. I'd like to fit Hive TRV heads but I haven't had any luck finding an adaptor that will fit this type of TRV. Any suggestions re possible adaptors welcome.

[stoneyboy]

Hi marsocky.
Many of these radiator valves for thermostatic look similar but the thread and the height of the actuating pin do vary.
You’ll probably have greatest success by replacing the existing ones with valves that are designed to work with your proposed heads.
Regards S

[marsocky]

Yep. Get that but I’m giving it one last go to see if someone can identify these and/or suggest adaptors that might work. If no one can then, of course, they’ll need to be replaced if I want to go ahead and use Hive TRV heads.