"Compressed Air" vs. "High Pressure Blower"

[DavisDad]

We are investigating the feasibility of a ball launcher using a cannon design. I want to avoid the complexity of compressed air and use a high pressure blower. Approximate blower specs:

• 2.9 psig "dead head" pressure
• 1.5 psig working pressure
• 750 CFM (200 CFM if accumulator)
• Velocity 35 ft/sec

I'd like to use an accumulator (reservoir) but if this will be considered compressed air, this will nix the design (Cv issues).

Any thoughts on this subject?

Thanks in advance!