Solenoid valve questions.

I am building a small air cannon using a solenoid valve. It says that the water line should have 75 PSI, but it also says do not exceed 150 PSI. Does that mean that I could pump 150 PSI into the chamber before it fails somehow?

Also, What happens if I do exceed the max pressure on the solenoid valve? Does it get wrecked, or does it just let the air through as a safety measure? That would be nice because I could figure out the max pressure by myself.

Yes, I am aware solenoid valves are for water, but it will work for air.