I came across a zone valve for a home radiant heating system here
, and noticed that you can buy just the motor for the valve here
I was wondering if these could be used to actuate a ball valve in a brewing system. If you could fabricate a mounting bracket and attach the motor to the stem, this could be a fairly cheap way (compared to other automated valves) to have an automated ball valve in your system.
I read through the details and the specs and wasn't able to figure out the torque but I would think it would be enough for another ball valve. I'm also assuming that it's a 90 degree rotation.
From what I can tell, the zone valves are meant to be open or closed only so I don't think this could be used for proportional control, only on/off control. This might be a reasonable replacement for solenoid valves in the wort flow piping where grain particles might interfere with the solenoid valve operation.
The zone valve motor combined with a 3 pieces stainless ball valve
from grainger, could be built for under $50. The stainless solenoid valves from dudadiesel are $52.
Has anyone tried this or used these valves/motors? Any thoughts? Am I way off on this?