Hypothetically, how is boiling water going to cool things down? I think the coil is giving off less heat than 212*F water, but that is just my thought.
Argument about liquid/gas cooling the solenoid's coil is kind iffy. The coil is insulated. The nut on the back of the electrical side gets hot. And the black plastic housing over the electrical coil gets warm. But this is def less heat that boiling water. I mean, I can actually touch the solenoid w/o getting scalded.
Added to this, if the solenoid is rated to regulate media that is 212*F/100C, then what is the unit rated to? I'm sure it can handle as much radiant heat as it gives off.
Again, talk to the Burkert Engineers if you are still concerned. I have. Heat doesn't have anything to do with durability/longevity/ function.
For argument's sake, here are the specs on the Burkert Type 6011: