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Wow!!! That was a bad mistake that I could see myself making. Long time ago as teenage lifeguards our manager(a slightly older teenager) made a CO2 powered screw gun using copper pipe, the CO2 tank from our Coke machine and just a regular phillips screw. Fun times...

rb1957, Yeah I have been trying to convince my higher ups that we should just be using the mass of the projectile. But I am also open to other methods and I realize my method would be worst case, just not sure how to get the actual case.

LittleInch, F=mA is actually what I was thinking if it were Hydrostatic testing. That would be much less violent than the pneumatic.

EdStainless, Yeah I had thought about an air rifle but that has the whole barrel to be building up speed with the pressure behind it. This would be nearly instantaneous.

Hi All, I am trying to design a pneumatic testing bay and want to make sure it will be robust enough. Need some help determining worst case velocity of a projectile in case of a failure. My projected worst case is if one of the fittings fails and comes shooting out.(the tank is overdesigned...