"Is it legal to have more than one acuator on one solenoid?"

[Chris Fultz]

it is legal, and in many situations a smart way of setting up the system.

For example, if you are using shifting transmissions, it can assure that both shift at the same time so you don't end up with one side in hi and one in low.

There are other devices where you need to be sure two things move at once, or that both ends of something move at once (opening a door, lifting something).

It can be a little slower, due to the size of the solenoid.