TRV Identifier

[rhino707]

After receiving some help on here to get my Vaillant VRC 700 controller up and running I've purchased one of the Vaillant Ambisense VR50 TRVs to see how it integrates and that it fits.

For cases where the threaded collar on the VR50 doesn't fit onto the valve, the box includes adaptors for Danfoss RA, RAV and RAVL valves. None of the supplied adaptors seems to work with my valves, they either don't fit or after attaching them the pin on the valve is too far from the VR50 to allow it to operate the valve.

I've attached images of the valves on my rads and would appreciate if someone could tell me what type these are and if it's a straightforward job for a plumber (not me) to change them one of the supported types if necessary?

Thanks

 

[CBW]

Not one I’m familiar with, but maybe send to Danfoss?

 

[denso13]

It's looks like an RAS-C so the RA adapter should work https://store.danfoss.com/en/Heatin...ors/Room-sensor-mTRV/RAS-C-Sensors/p/013G5023