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Convert scfm to cfm? my compressor puts out 4.9 scfm at 90psi; 7 scfm at 40 psi so how many cfm at 23 psi?

I need to figure out how many cfm my compressor puts out at 23psi with the above measurements. Thanks

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  • Psi Master
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Hard to give an exact number, however, as pressure and temp of air increases, the scfm drops as you see in your numbers. With low pressure such as 0 thru 25 the temp of the air is also low/nominal thus the scfm will be very close to the actual cfm listed for the compressor pump.

Posted on Jun 12, 2015

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6ya6ya

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Posted on Jan 02, 2017

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Rod Wallberg

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SOURCE: psi does not go above 20

Check drain as it might not be closed all the way, you may have to set the regulator and there could be a bad switch diaphragm.....

Posted on Feb 14, 2010

Anonymous

  • 5 Answers

SOURCE: I need a new belt for my Husky air compressor but I don't know

You may be able to find the belt you need on ebay. There is a seller named "Footballcardcellar" who lists these often and they are alot cheaper than buying the kit from Husky. Just search "Air compressor belt husky"

Posted on Mar 28, 2010

Anonymous

SOURCE: Hello , i found an awesome deal on the internet

Too small,on CFM
If your spending less than $400 to 800,forget it

I had a Campbell Hausfeld for 30 years,with 20 gallon
I replaced it with an upright,30 gallon

I do not use an impact on wheel nuts,ever,and I use a torque wrench set at 80# going on.
That has worked for me,damage free for 35 years.
What kills the air,is the air chisel and worse,the cut off tool,which you will use the most.

Make sure what ever you get, uses oil,the oil less units last about 3 years.

Two stage is best,but I still have a single
Has to be wired for 220 volt,unless you like paying the electric bill
So hope you have circuit breaker and 1900 box branch circuit wiring experience

Forget the gas engine,unless your going on the road every week

You need about a steady 100# to really run any air tool--so that translates to about 10 CFM,little pricy

Posted on Oct 22, 2010

hunter19_46m

Curtis Sewell

  • 7482 Answers

SOURCE: looking for a manual for Excalibur 7.2 CFM/2 HP

Hi loraogarek...
Go to the following webpage and download your owners manual.
Please take time to rate me

http://www.chpower.com/manualsearch/

Posted on Sep 18, 2011

THFFDN

  • 1 Answer

SOURCE: Howdy, I just acquired an air compressor,

We have a Westinghouse 3YC air compressor. The safety relief valve in the line between the two compressors started "popping off" recently. The compressor seems to be working fine. Is this a problem only with the relief valve or could there be a symptom of a more serious condition that we should be attending to? The valve is stamped 60 max which I assume is 60 psi. Is this the correct size. The tank pressure is set for125 psi. The tank relief valve is marked 250 max.

Posted on Sep 25, 2011

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1 Answer

We have a 50 liter tank that filled up to 4300 psi. in 7 min. how many scfm is my compressor putting out?


Use this method to determine the fill rate.http://www.ehow.com/how_5001852_calculate-cfm-air-compressor.html#page=1

The data provided did not provide start and stop pressure. The above method will get you there. Your cubic foot volume on the 50 liter tank is 1.7647 cubic feet to save you some calculations.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/john_28069c9efb56199d

Mar 04, 2015 | Air Tools & Compressors

1 Answer

How do I convert cfm to scfm


For the Equation to follow the following definitions apply

S = scfm (the answer you want)
P = Barometric pressure in Pounds per square inch when you measured the cfm.
14.696 = standard barometric pressure at sea level

So:

S = P/14.73 x cfm

Example: Denver

Barometric Pressure 11.50 psi
cfm = 5400

S = 11.5 / 14.696 x 5400 = 4225.6 scfm

There was a lot of debate in the Natural gas industry years ago about the Standard barometric pressure value. Some Companies used 14.69 psi and others used 14.73 psi.

If you use natural gas to heat your home this is the same equation used by the gas company to correct for altitude on your bill.

The equation is derived from Boyles Law which is accurate at pressures close to atmospheric pressure.

Feb 25, 2015 | Heating & Cooling

1 Answer

Im going to buy a compressor ! What is the min scfm comp that will run this tool for small jobs on my car?


Hi and welcome to FixYa, I am Kelly.

Air Tool consumptions are based on 15 seconds per minute (25%) of tool use.

Usage rates refer to the total time that air is flowing through the tool. If your applications result in more extensive usage, calculate air tool requirements as

follows.


(25%) 15 seconds = rated scfm x 1

(50%) 30 seconds = rated scfm x 2

(75%) 45 seconds = rated scfm x 3
(100%) 60 seconds = rated scfm x 4

Your impact wrench is rated a 8 CFM Cubic Feet Per Minute Usage

SCFM is Standard Cubic Feet per Minute (pre-compressed air volume)

I would be more concerned that the plumbing from the compressor tank could support the 8 CFM required by the 1/2" Impact. Remember the Air compressor will recover the pressure loss regardless of size. The only problem your going to have for "small jobs" is if you use too small of an air line to supply the impact wrench you are not going to get the full torque that it will produce to the drive head. In other words... a 1/4" supply line or 1/4 fittings anywhere in the system just isn't going to cut it even at 120 PSI. If you have the patience... a 5 gallon tank compressor that has the output volume required should be all that you need. I have been a mechanic over 4 decades and rarely have to use a 1/2 in impact for very long. Examples of 1/2" vs 3/8" useage. Wheel nuts, crankshaft pulley center bolt, some starters, steering, suspension and rear end parts. Other than that a 3/8" Impact works great.

One other thing you can do if you have an Air-Peen portable tank (with added fittings) is to add that in line with your output hose when your using the impact wrench so that you have longer use times.

I know this does not answer your what SCFM compressor is required question but it will resolve your needs. I just can't see telling someone that is a "small jobs" user to buy a larger compressor when really all they need is more volume for a brief period of time. The re-plumbed 1/2 inch output / in-line Air-Peen tank is a much cheaper and reasonable work around and you can disconnect that tank when your not using the impact wrench.
Lastly... if your inpact wrench has a SMALL male air fitting everything above will be a waste of time. You have to get that volume into the tool without restriction so that the rool will work properly for you.

Thanks for choosing FixYa.
Kelly

Mar 09, 2011 | DeVilbiss Excell ET501 12" Impact Wrench

1 Answer

Looking for SCFM rating for a Mastercraft Model # 820218 air compressor


I have a Mastercraft 820218.
Specs are: 2 peak HP 5 Gallon tank 5.0 cfl @ 40 psi 4.0 cfm @90 psi max pressure 125 psi

Jan 23, 2011 | Garden

1 Answer

Manual for coleman vp201 air compressor


THE PSI RATING IS 70-100PSI. I WASN'T ABLE TO FIND THE SCFM AT THEIR WEBSITE. NO MANUALS AVAILABLE AS OF YET.

Jan 11, 2010 | Coleman 10' X 10' Sundome Tent 9160K101

2 Answers

Need Manual for Husky Model 41214 Air Compressor


You can get the manual for model 41214 from my dropbox area:

http://dl.dropbox.com/u/54567653/husky_aircompressor_model_41214.pdf

BTW, if you find this manual helpful consider installing dropbox using this link (full disclosure -- I do get about 0.2 GB freespace from dropbox if you install using this link):
http://db.tt/vQycqXIW

Thanks,K

Dec 20, 2009 | Air Tools & Compressors

2 Answers

I need a new belt for my Husky air compressor but I don't know


This is a simple way to replace your belt without the old one for comparison. Use a piece of rope thick enough to fit inside the pulley, (cloths line works well). Simple wind it around the pulleys marking where the two ends meet. Cut and measure it. Take the piece of rope and measurement to a auto parts store and ask them to match it up. An automotive belt will work fine.
If this is a flat belt they should still be able to help you.

Aug 07, 2009 | Air Tools & Compressors

1 Answer

AIR VOLUME REQUIRED


You need to look at the tool cfm requirements because they are posted on the package or usually in the ads. Your compressor will run the sander, just how long at a time will depend upon your tool's cfm. Rick

Apr 14, 2009 | Air Tools & Compressors

1 Answer

Nail Gun how to


One of the factors used to designate compressor power is motor horsepower. However, this isn't the best indicator. You really need to know the amount of air the compressor can deliver at a specific pressure. The rate at which a compressor can deliver a volume of air is noted in cubic feet per minute (cfm). Because atmospheric pressure plays a role in how fast air moves into the cylinder, cfm will vary with atmospheric pressure. It also varies with the temperature and humidity of the air. To set an even playing field, makers calculate standard cubic feet per minute (scfm) as cfm at sea level with 68 degrees F air at 36% relative humidity. Scfm ratings are given at a specific pressure–3.0 scfm at 90 psi, for example. If you reduce pressure, scfm goes up, and vice versa. You also may run across a rating called displacement cfm. This figure is the product of cylinder displacement and motor rpm. In comparison with scfm, it provides an index of compressor pump efficiency. The cfm and psi ratings are important because they indicate the tools that a particular compressor can drive. When choosing a compressor, make sure it can supply the amount of air and the pressure that your tools need.

Sep 01, 2008 | Dewalt Heavy Duty 2 Brad Nailer Compressor...

1 Answer

Nail Gun how to


One of the factors used to designate compressor power is motor horsepower. However, this isn't the best indicator. You really need to know the amount of air the compressor can deliver at a specific pressure. The rate at which a compressor can deliver a volume of air is noted in cubic feet per minute (cfm). Because atmospheric pressure plays a role in how fast air moves into the cylinder, cfm will vary with atmospheric pressure. It also varies with the temperature and humidity of the air. To set an even playing field, makers calculate standard cubic feet per minute (scfm) as cfm at sea level with 68 degrees F air at 36% relative humidity. Scfm ratings are given at a specific pressure–3.0 scfm at 90 psi, for example. If you reduce pressure, scfm goes up, and vice versa. You also may run across a rating called displacement cfm. This figure is the product of cylinder displacement and motor rpm. In comparison with scfm, it provides an index of compressor pump efficiency. The cfm and psi ratings are important because they indicate the tools that a particular compressor can drive. When choosing a compressor, make sure it can supply the amount of air and the pressure that your tools need.

Aug 27, 2008 | Irwin 24" Bar Clamp Multi Position Jaw

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