I'm currently designing an air filtration system for the filling compartment of a beverage filler. The goal is to introduce HEPA filtered air at a rate of 2 CFM through a circular pipe opening with diameter of x inches. The air is provided by a compressed air system at a pressure of 120PSI (I plan on reducing this pressure through an air regulator)(adsbygoogle = window.adsbygoogle || []).push({});

My problem is that I do not know how to calculate the air flow rate in CFM using the information I have (PSI and diameter/CSA). Is there a formula or method of determining the CFM from the above information and possibly other information I could easily find?

Thanks for your help.

T.K.

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# Calculating CFM from PSI and C.S.A.

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