How many volts do you need to open a gas valve?
The shut-off of the gas valve is powered by an electric current. It is possible to operate most of them by either a/c or d/c current. There isn't a good rule-of-thumb number to say that the coil on the valve should have resistance to operate.
Let's Get It Fixed!
HomeX virtual experts will assess your issue (for free!) and can resolve simple problems.