How do I mount the Danfoss adapters on the heating valve?

RA
Spread the RA adapter and click it on; the adapter should snap into the notches behind the bead (important). Mount the locking screw if necessary. Screw on the coupling ring hand-tight (without additional tools). The valve stem must be flush with the white coupling ring.

RAV
Spread the RAV adapter and click it on, if necessary mount the locking screw, push the pin onto the valve stem as far as it will go. The pin must be flush with the white coupling ring. (If the pin is too long, it can be shortened as required.)

RAVL
Spread the RAVL adapter and click it on, hand-tighten the coupling ring (without additional tools). The valve stem must be flush with the white coupling ring.