Which adapter can I use for this valve?

Which adapter can I use for this valve? I have tried several, but no one seem to fit, which prevents me from installing the thermostat. The existing thermostat says "Caddy", but I can find model number or anything else.

I have tried different 34mm RAV and RAVL adapters, but no one with a proper fit. I found one 34 mm RAV adapter with a fit to the valve, but then the pin was too short.



Comments

  • I have a Tado support sheet that shows projection of valve pin to mating face and Tado extension pin to use.

    projection mm Extension pin length mm

    1 to 3 24

    6.5 to 8.5 18.5

    8.5 to 10 17

    10 to 12 15

  • Okay, but what adapter should I use?