Here's one of
the most used Compressed Air formulas
you should keep on hand...
How to find how many CFM
your air compressor delivers.
Follow these steps to find how many
CFM Your Air Compressor delivers
CFM Your Air Compressor delivers
1. STOP the compressor unit
2. CLOSE the outlet valve on the tank/air receiver
3. DRAIN the condensate from air receiver until there is 0 PSIG -then close the drain valve
4. NOTE THE TIME- minute & second. Then START THE UNIT.
When unit stops/unloads – then NOTE THE TIME again – minute & seconds. Convert minutes into seconds and then total number of seconds it takes between START and STOP/UNLOAD.
5. NOTE the GUAGE PSIG reading
6. NOTE the Air Receiver/Tank GALLON SIZE
7. USE THIS FORMULA:
TANK GALLONS x .538* x PSIG divided by SECONDS
EXAMPLE:
You have an 80 gallon tank, your total seconds timed were 189 and you noted 175 PSIG.
80 multiplied by .536 = 42.88
42.88 multiplied by 175 (example PSIG) = 7504.00
7504.00 divided by 189 (total seconds)= 39.71 CFM delivered
You now know that your air compressor is delivering 39.71 CFM
Your
Response to this evaluation should be to compare this number with what your air
compressor manufacturer says your CFM should be and evaluate how efficiently
your compressor is running.
Tommy
McGuire
McGuire Air Compressors,
Inc.
"Real People with Real Compressor Experience"
"Real People with Real Compressor Experience"
1-888-229-9999
