CFM SCFM PSI Compressor Flow Issues

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While this page is about CFM-SCFM-PSI compressor-flow issues – I’m not going to get into defining the various terms noted. These are explained fully on other pages on this website.

The purpose of this page is to help in understanding that CFM, SCFM, PSI are all ways to measure compressed air and how that relates to a specific air compressor or to a particular problem with flow.

With the information available from this page, either existing or in response to a question, you may be able to resolve any problems you may have with your compressor operation as it relates to CFM, SCFM or PSI or ask other compressor users to help with an issue you are having. Visit our SCFM vs CFM guide for more information!



Existing questions.

1/4″ outlet x 3/8″ hose – what’s the point

Additional CFM reading:

What size air compressor:

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I have been experiencing a reduction in CFM in two of my compressor. One is a wheelbarrow style gasoline operated 13 CFM machine the other is a 240 volt electric compressor that is 11 CFM. One is stored in a non climate controlled shop and the other is stored in barn (also not climate controlled). I recently changed the pump oil and drained (not nearly often enough- probably twice a year). The belts were also replaced and are tightened to about 1/2 inch deflection (when pressing on belt between pulleys). Is it my tanks from not draining often enough or… Read more »