Get your EXAIR Catalog

I consider myself a bit Old Fashion when it comes to product catalogs! (As I sit here and look at my 3,968 page McMaster-Carr Catalog!) There’s something nice about having everything you need right in front of you. Yes I know everything is on our website also, and its a pretty slick website if I do say so myself! Check out this blog about our new and improved website! Website Blog But there is something about a paper catalog you can flip thru and see all the options!

EXAIR’s Catalog 33 is 224 pages, and covers all 16 product lines from Air Knives to Cabinet Cooler systems, to industrial vacuums. All of our cataloged products are in stock and ready to ship! Not only will you be able to find part numbers, Dimensions, Product specifications and performance. You will also find application photos to help you use the products the best way!

To get your hands on one you can either shoot a email to techelp@exair.com, or jump over to our website and provide your information and one will be shipped out! Order A Catalog Here

Jordan Shouse
Application Engineer

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What’s So Super About EXAIR’s Super Air Wipe?

When you’re blowing something off with compressed air, one of the first things you want to consider is the size, and shape, of the air flow that’s going to be needed to get the job done. If you’re blowing off individual small parts, we’ve got a variety of Super Air Nozzles that will do the job quietly and efficiently. If it’s a flat plate, sheet, or film, the laminar flow from a Super Air Knife is particularly conducive to creating a stripping/sweeping flow of air, ideal from blowing moisture or debris from flat surfaces.

Let’s say you need to blow off an object from all sides…like a length of hose, tube or pipe, or even an extruded shape. You could position an array of Air Nozzles, Air Knives, or Air Amplifiers around it (there ARE times when that makes sense, but that’s a subject for another day)…or, you could pass it through an Air Wipe.

EXAIR Air Wipe products come in a range of sizes – 3/8″ to 11″ – all of which have a split design, which unlatches easily to eliminate the hassle of having to thread the product through them. Air Wipes up to the 4″ size come with a hose assembly that connects the two halves, so you just need to run one air line to them. If you want to make gross adjustments to the flow & force generated, we offer additional shims, which are easily installed to put the Air Wipe into a whole new range of performance.

These also come in two types: Super, and Standard, Air Wipes. Size for size, performance & dimensions are identical. The difference is all about the materials of construction and temperature ratings. Which one we specify will largely come down to the nature of the environment in which they’ll be installed. In the absence of high heat, or corrosive elements in the environment, the Standard Air Wipe is my recommendation all day, every day. If you need something that’ll stand up to a bit more aggressive conditions, the Super Air Wipes are certainly worth a look.

Additionally, the Super Air Wipes can be fitted with emitter points for static elimination…we call those Super Ion Air Wipes, and they come in 2″ and 4″ sizes.

360° blow off AND fast, efficient static dissipation: EXAIR Super Ion Air Wipe.

EXAIR Intelligent Compressed Air Products are the best choice for quiet, safe, and efficient use of your compressed air. If you’ve got a blow off application you’d like to discuss, give me a call.

Russ Bowman, CCASS

Application Engineer
EXAIR Corporation
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What Is A Coanda Profile?

The big thing that sets engineered products like EXAIR Intelligent Compressed Air Products apart from other devices is the engineering that goes into their design.  Several principles of fluidics are key to those designs:

The one I wanted to discuss today, though, is the Coanda Effect, what it means for our engineered compressed air products, and what they can do for you:

The Coanda effect is named after Henri Coandă, who was the first to use the phenomenon in a practical application…in his case, aircraft design.  He described it as “the tendency of a jet of fluid emerging from an orifice to follow an adjacent flat or curved surface and to entrain fluid from the surroundings so that a region of lower pressure develops.”  Put simply, if fluid flows past a solid object, it keeps flowing along that surface (even through curves or bends) and pulls surrounding fluid into its flow.  Here’s a demonstration, using an EXAIR Super Air Amplifier and a plastic ball:

What’s interesting here is that the Super Air Amplifier is not only DEMONSTRATING the Coanda effect, it’s also USING it:

Air Amplifiers use the Coanda Effect to generate high flow with low consumption.

EXAIR Standard and Full Flow Air Knives also have Coanda profiles that the primary (compressed air) flow follows, and uses, to entrain “free” air from the surrounding environment:

Compressed air flows through the inlet (1) to the Standard Air Knife, into the internal plenum. It then discharges through a thin gap (2), adhering to the Coanda profile (3) which directs it down the face of the Air Knife. The precision engineered & finished surfaces optimize entrainment of air (4) from the surrounding environment.

EXAIR Air Wipes can be thought of as “circular Air Knives” – instead of a Coanda profile along the length of an Air Knife, an Air Wipe’s Coanda profile is on the ring of the Air Wipe, which entrains surrounding air into a 360° ring of converging air flow:

Air Wipe – How it works

So that’s the science incorporated in the design of our products.  But what does it mean to the user?

  • Efficiency.  Pulling in a tremendous amount of “free” air from the surrounding environment means minimal consumption of compressed air, while still getting a hard hitting, high velocity air flow.
  • Sound reduction.  This air entrainment also creates a boundary layer in the air flow, resulting in a much quieter air flow than you get from a simple open-end blow off.

EXAIR Corporation is committed to helping you get the most out of your compressed air system, and thanks to Mr. Coandă, that includes reducing your compressed air consumption and noise levels.  If you’d like to find out more, give me a call.

Russ Bowman, CCASS

 

 

 

Application Engineer
EXAIR Corporation
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Daniel Bernoulli, Entraining EXAIR Products

Daniel Bernoulli was born February 8, 1700 in Groningen in the Netherlands and was the son of Johann Bernoulli an early developer of calculus. It is believed that Daniel did not have a good relationship with his father. This mainly stemmed from the both of them entering the same scientific contest at the University of Paris. The two tied and his father Johann took exception to being compared to his son as “equal” and could not accept the shame and banned Daniel from his home. Daniel tried to reconcile their difference but his father carried this grudge to his death.

Earlier in Daniels life his father convinced Daniel to study business as there was no income incentive to study mathematics but against his will Daniel did choose the study of business. His father then convinced Daniel to study medicine but Daniel still wanted to study mathematics and agreed to study medicine under the condition that his dad teach him mathematics privately. Daniel completed his bachelors degree at the age of 15 and his masters degree when he was 17. Daniel then went on to study medicine and received his PhD in anatomy and botany from the Universities of Basel, Heidelberg and Strasbourg.

Daniel Bernoulli was very accomplished but mostly known for Bernoulli’s principle. Bernoulli’s principle is the relationship between fluid speed and pressure. An increase in the speed of a fluid will occur simultaneously with a decrease in the fluid’s pressure or potential energy. The Venturi effect, published in 1797 by Giovanni Venturi, applies Bernoulli’s principle to a fluid that flows through a tube with a constriction in it. The Venturi tube provides a handy method for mixing fluids or gases, and is popular in carburetors and atomizers, which use the low pressure region generated at the constriction to pull the liquid into the gas flow. It also offers a particularly clear example of the Bernoulli principle.

For example, above is how a Super Air Wipe works. Compressed air flows through an inlet (1) of the Air Wipe into an annular chamber (2). It is then throttled through a small ring nozzle (3) at high velocity. This primary airstream adheres to the Coanda profile (4), which directs it down the angled surface of the Air Wipe. A low pressure area is created at the center (5) inducing a high volume flow of surrounding air into the primary airstream. As the airflow leaves the Air Wipe, it creates a conical 360° ring of air that attaches itself to the surface of the material running through it (6), uniformly wiping the entire surface with the high velocity airflow.

EXAIR incorporates the Bernoulli Principle with our engineered products which entrain air such as our Super Air Knives, Super Air Wipes, Air Amplifiers and Static Eliminating products to name a few. We have several Applications Engineers that will appreciate your call to discuss our products. If you have an application or question please call 800.903.9247 or visit us on our website www,EXAIR,com and let us help you.

Eric Kuhnash
Application Engineer
E-mail: EricKuhnash@exair.com
Twitter: @EXAIR_EK