CFM - SCFM - PSI
       Compressor Flow Issues



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 provide a forum to help you understand that CFM, SCFM, PSI are all ways to measure compressed air. With the information available from this forum, either existing or in response to your question, you may be able to resolve any problems you may have with your compressor operation as it relates to CFM, SCFM or PSI.

Before posting a question please read the entries below the form first. Your compressor issue may already have been discussed and resolved?

If you don't see your compressed air flow or pressure issue below, then use to the form below to add yours. The answer will hopefully help you and any others that are experiencing the same compressed air problems.

Thanks...

Bill

Ask What to do about CFM-SCFM-PSI-compressor-flow-issues.

Please read the postings at the bottom of the page to see if it's already covered. If not, tell us about your problem.

Some of the issues about CFM-SCFM-PSI-compressor-flow-issues.

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inline compressor to boost psi 
we have a shop compressor that can only be set up to 100 psi. We are getting a CNC Router that needs a constant supply of 110 psi. I am curouis if I can …

Need more CFM 
Bill, My compressor guy put me in a bind. First we use a diaphragm pump that requires a max of 125 psi and 185 cfm fully operational. We run them at …

Fini-Biscout MK200-1.5M has insufficient air to operate air tools 
It is a Fini-Biscout MK200-1.5M dual tank compressor runs on 120V which I purchased new about 20 years ago. Compressor has been used very very little but …

Need minimum 10cfm @90psi to drive a soda blaster 
I have a 5hp Cambell Hausfeld 26 gal ASME tank, 6.5 scfm @40psi 5.1scfm @ 90 psi. Can I swap the pump out to get the cmf I need? Can the tank handle it? …

No air coming out of air hose 
No air coming out of air hose attached to the compressor. The compressor builds up pressure, but when I try to use the air hose connected to the compressor …

If i put two identical compressors in serial would the scfm change? 
I have 2 - 21 gallon compressors, identical, 125 max working psi, 2.5 running hp, 4.7 scfm @ 90 psi, 5.8 scfm @40 psi. So i have tank one running a …

Running out of air 
I have a 26 gallon air compressor, if I use a cut off tool or a grinder it runs out of air really quick is there something I need to do different. Or is …

2hp horizontal tank older model not enough air 
when i get to 80-100 psi using my blow gun it starts at high pressure for 2 seconds and then goes to gentle breeze and if i stop and wait it will give …

Air Horn Application 
We are a weather notification company and use direct drive truck air horn kits for our audible siren component of our system. We want to increase sound …

Compressor CFM ratings??? 
I need a compressor to run my blast cabinet. Blast cabinet specs indicate that it uses about 45 cfm, but doesn't indicate the psi for that number. The …

Increasing the PSI of a powerkraft JD-2025B(F) 
I have a powerkraft 24Ltr tank 2HP model JD-2025B(F) This unit has been set to 115psi by factory my nailer needs 120psi max for the larger nails …

Increase RPM to increase CFM? 
Hi I have a compressor that is 5.5 HP and is running at 900 rpms. It makes 24 cfm and 180 psi at this rpm. I was wondering if I increased the rpms if I …

SCFM for a 2 inch pipe at 110 PSI 
2" off the compressor head thru refrigerated dryer to unit-under-test 135 ft. away, how many SCFM could flow thru a 2" pipe at 110 PSI?

Figuring out venturi yield with compressed air 
1 psi into a venturi tube equals how many cfm's out at what psi's? Thank you in advance. Wesley

Compressor doesn't run air tools well 
Compressor builds pressure easily but doesn't run air tools well Bought a used twin reciprocating compressor 7 HP 110 tank from an existing shop. …

Will adding an extra tank increase CFM? 
Will adding an extra tank increase the cfm ?

About the measrement of air flow related to a regenerative blower 
When I use a cfm meter (Extech) and measure the air flow in cfm going into the compressor, I get a higher value coming out. What's up with that? How can …

Loss of Air hose pressure 
Compressor pumps and fills. Regulator gauge shows full. I do have air in the hose. I get one good push of air but the hose pressure drops very quickly. …

What is SCFM 
What does 5.2 scfm @ 90 psi mean

defined levels of compressed air 
Bill I just ask a question and I forgot to ask the main question I had. I am older. I would like to know if there is a governing agency that sets what …

limit to the psi in compressed air? 
Two questions. Is there a limit to the psi? How much you can compress air? Question two. Is there a limit to how high the temperature can go when the air …

Is compressed air pipe size adequate for this situation? 
Sir, 2 inch pipe distance 100m air flow not stable At second floor there is One unit dessicant dryer (does not have N+1) 2 inch pipe 6.5 bar (with …

Compressor overloading with air driven water pump 
Hi bill, I manufacture air powered water pumps. They operate on the principle where air pressure is exerted in a canister full of water. The air pushes …

Size of air compressor required to fill tanks 
I have a tank at one of my clients that I have to fill up to do a soap leak test. The tank has 960.000 lts capacity of capacity. What would be the capacity …

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The 8 to 1 ratio of compressing air 
I have read some where maybe here that if you took a volume Say one quart at 14.7 psi it would take 8 of those quarts squeezed into each other to get 100 …

135 psi air compressor flow issues 
my compressor fills up fine and maintains pressure. there is air coming through the line but my nail gun stopped working. when i attempt to use it all …

air flows, but then slows down 
i connect air tool to air line, i press the trigger on the air tool. air tool run for a few seconds then slows down if i keep trigger pulled. ______________ …

CFM result from joining two air compressors 
I have a 2HP 8 gallon CP unit and a 21 gallon 2.5HP CP unit. My question is, if I join the two tanks together will the SCFM output @ 90PSI (4.7) increase, …

How to turn the pressure up on my air compressor 
How do I turn the pressure up on my 5hp shop compressor. It used to charge up to 110-120 now it just wants to stop at 80 and not go any higher. It is a …

Compressor information about relating duty cycle to CFM  
A DK5100 Kreg pocket hole 5 drill requires 20 cfm at 50% duty cyle. Could a 18.1 cfm with 65% duty cycle work? If not, why please? _______________ Hi …

Compressed air consumption and compressor horsepower 
Hi Bill I have an old compressor I use in my garage. it has a V Twin pump and appoximately 150 litre tank. It is currently running a 1.5hp 1500 …

How to calculate the CFM of an air compressor 
i need to no how to calculate the cfm of my air compressor and the ratio at which it need to works in correspondence with the psi. ______________ Michael, …

Work out the CFM of an air compressor 
is there a formula to work out the cfm for a range of operating pressures? Most manufacturers rate their equipment at 100psi. If I want to use a machine …

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