Air Compressor Cfm At Different Pressures

It s an imperial measurement not a metric measurement.

Air compressor cfm at different pressures.

We discuss with an example and it might be clear. Well we ve got two simple methods on how to increase cfm on air compressor at two different extents. Example an air compressor bears a sticker where they claim the air compressor has 4 horsepower hp tank capacity 30 gallons 14 cfm at 90 psi. Air compressor cfm calculation formula.

As you know cfm stands for cubic feet per minute which is the speed of the air that gets into the compressor. F at sea level with a specific humidity level circumstances far removed from the condition of the air discharging from your compressor. To calculate scfm the air is expanded to a standard condition to take into account the variables of pressure temperature and humidity. Scfm refers to standard cubic feet per minute of air and a standard cubic foot of air is at 68 deg.

However i found some ways that you can follow to make your compressor a high cfm compressor. Let s go and figure them out let s understand air compressor cfm first. We can calculate the cfm. As a measurement cfm will be a smaller number than scfm because cfm values are taken under pressure typically 90 psi so the air volume is small.

That s what this page is all about. Almost all compressor manuals that have compressed air output information provide it at 90 psi and sometimes at 40 psi. Knowing the air compressor output at 90 psi output is good since many air tools are rated on their air consumption at that pressure. Calculating cfm output at various pressure levels for air compressors over the years i have received many requests for information about calculating cfm at different pressures.

For measuring the pressure coming out of the compressor i use cfm.