Radiator valve connector/adaptor advice

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Hi .


I recently moved house where I had a full Tado set up with valves on all radiators. I left it all behind and want to do the same in my new home but the radiators have a different screw connection than my old ones.


I have no idea what they are called but here is a photo.

As you can see there is no actual screw connection, so I need to use an adaptor. I happen to have a bag of the adaptors from my old house as I didn’t need them there and got all the adaptors out of the bag and sat scratching my head, as there are no proper instructions showing anything about the adaptors I’m unsure which one to use or even if there is a compatible one at all.


After a bit of trial and error this one seems to fit but just wanted someone in the know to educate me on what this type of valve connector is called and if you think this is the right adaptor.


Thanks in advance 👍🏼