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Re: Air controlled solenoid valve
I think the regular Pesto FRC approved solenoids are good enough. They are actually electric and air actuated.
There is an electric solenoid that allows air to a pneumatic plunger which then switches the ports. That's why you have to have air to those solenoids for them to switch.
They can also be a little complex to open up and clean as I did with 3 of ours. I was also a little interested in the insides anyway.
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