I did call a Belimo Rep in Connecticut
I am waiting for the new actuator#AFRB-24
He did not specify if an Adapter is requiredName:  Valvestem1.jpg
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Size:  31.2 KBName:  ValveStem2.jpg
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Size:  30.6 KBName:  rongReplacement.jpg
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Supposedly this will fit the existing valve
The existing set up has a long screw that passes through the plate on the actuator shown and then screws into
the valve stem, (see picture) works very good
We now have over 150 of these type of setups
Cannot be changing out Valves every time an actuator
fails