Air assist question

Machine: k40lpsu and tube with custum frame

Board: c3d mini

Firmware: _Smoothie

Problem/ Question: hi i have a air assit question.
I have a air solenoid 24v. 4.8W.
I know that i can connect it to fet2.
Can i supply the 24v on the fets from the same 24vpsu that powers the board?

Somebody told to install a flyback diode can someone tell me witch one? Not really sure what kind of diode is this

Thanks edgar

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