Adding 2 identical compressors will not change the CFM

The only thing that can change flow (CFM) is pressure. So, knowing that and both compressors being equal will not change the flow. Plug your numbers into Boyle's law and you will see there is no change in flow.

Comments for Adding 2 identical compressors will not change the CFM

Click here to add your own comments

Nov 09, 2018
Then there is a restriction in the system.
by: Doug in s.d.ca.

"We add an identical compressor to the system and system pressure and cfm remains the same."

"I have sold many compressor systems to companies that ran out of capacity with their current compressor."

Why, if you believe it won't help?

Nov 08, 2018
Volume is volume
by: Anonymous

Volume has nothing to do with flow or pressure its just a vessel that holds it. It neither adds or takes away anything. I have sold many compressor systems to companies that ran out of capacity with their current compressor. We add an identical compressor to the system and system pressure and cfm remains the same.

Nov 08, 2018
Boyle's concerns a given amout of air
by: Doug in s.d.ca.

"Plug your numbers into Boyle's law and you will see there is no change in flow."

Quite so. But you can't really do that because there is not a given mass.

If you allow for the additional air mass from the pumps, then you can see the CFM does increase.

Put another way, V doubles, so CFM doubles.

Click here to add your own comments

Add your own question or comment. It's easy to do. How? Simply click here to return to CFM-SCFM-PSI-compressor-flow-issues.