What is cfm

Learn the essential differences between PSI and CFM, two operational standards for measuring pressure within an air compressor. Effectively operating a compressed air system — especially for more than a single application — requires that operators maintain a pulse on critical performance indicators, including speed, load size, air pressure, and the rate of air flow. The latter two measurements, air pressure and flow rate, are measured in relation to one another using two distinct metrics: PSI and CFM.

What is the difference between the two and what is the nature of the relationship between pressure and rate of flow within a compressed air system? Pounds per square inch PSI is the metric for assessing how many pounds of pressure are exerted on a single square inch of space — psi equates to pounds of force exerted per square inch. Here's Why It Should Be. Hiring Contractors? Addressing Mental Illness and Workplace Safety.

Risk Takers Wanted. Follow Connect with us. Sign up. Thank you for subscribing to our newsletter! Connect with us. All taxes and customs duties are listed at checkout and collected along with your order payment. Freight shipping may be required for heavy or oversized items, which includes large lighting fixtures and furniture. Freight shipping takes business days, in addition to any lead time stated on the product page. All pricing displayed across the site is in US Dollars.

You'll receive an email with your expected shipping time frame if this is the case with your order. Shop Now. Back To Top. Your browser does not support iframes. Lumens Low-Price Guarantee In addition to our incredible specials and price promotions, Lumens is committed to offering you the lowest possible price on every product we sell, every day of the year. Keep in mind that not all manufacturers sell CFM hoods. Most hoods are CFM and below. These hoods are not as versatile because the lower speeds lack power.

With a high powered hood, you can run it at lower speeds all the time. This way, it will last much longer in your kitchen. The larger the kitchen range, the more air your hood should move. But, you need to make sure you have enough space on your wall or under the cabinets. Over a larger range, coverage is even more important. We suggest buying a hood that is six inches larger than the cooktop.

If you have space, over six inches is recommended for your kitchen fan. This will be a much larger number by comparison to a CFM reading: 60 times larger, to be exact since there are 60 minutes in one hour. Gas lines are a good example of equipment that is measured in cubic feet per hour. This rating tends to be quite low, especially in residential applications because gas is being moved, not air. Gas lines must adhere to strict code requirements and safety regulations to ensure safety for all residents.

Your typical residential gas line will measure approximately a few hundred cubic feet per hour CFH. While this may seem low, one cubic foot per hour of gas supplies approximately 1, BTUs for your gas appliances in the home. Your gas appliances, if they are able to, can use up to this amount of BTUs in total.