I don't understand you question... the solenoid is just an electric valve that open and close, If you put power it opens and if you cut the power is close, It is capable to hold pressure back up to 175 PSI, I think that the power consumption at 12V is 200 mAh what make it ideal to use it as a permanent valve, it can hold the open pressure literally for hours without no problems at all. I just purchase a different CNC Breakout board that actually have 3 solenoids I plan to use one of them to turn the solenoid. so I can change my tools as needed,

I hope that I have actually answer the question. and that what I say actually make sense!