Get the valve MFR name, model number or fig number, ASNI Class rating, type (ball, gate, plug, etc.) and contactr the vendor of the valve. More likely they will give you the answer immedately. If the valve is 12" or smaller, the valve operator more likely is a shelf item.
If you are looking for electric, hydraulic, pneumatic, or combination, you still need to get the above information, but contact the actuator representative (Bettis, shafer, biffi, etc.).
Cheers,
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