Vortex Tubes – The Basics, And Beyond

The Vortex Tube might be just about the most interesting compressed air device around.  They have no moving parts, and they don’t need any but a compressed air supply, which they ‘split’ into a hot air stream, and a cold air stream.

EXAIR Vortex Tubes come in three sizes – Small, Medium, and Large – and 24 distinct Models across those three sizes.  They’re all in stock, along with Hot & Cold Mufflers (for sound level reduction,) Automatic Drain Filter Separators (to keep the air supply clean & moisture free,) Oil Removal Filters (to coalesce any trace of oil from the air supply,) and Solenoid Valves & Thermostats (to automate operation.)

From left to right; a few value added accessories for your Vortex Tube: Hot Muffler, Cold Muffler, Automatic Drain Filter Separator, Oil Removal Filter, and Solenoid Valve/Thermostat Kit.

The Vortex Tube, right out of the box, is easily adaptable to a wide range of cooling (or heating) applications.  If your needs are specific, though, we can customize a Vortex Tube to meet them:

  • Material of construction: our stock Vortex Tubes are made of 303SS and are equipped with a plastic Generator and Buna o-ring.
    • For high temperature (>125F ambient) applications, we can install a brass Generator and Viton o-ring, suitable for ambient temperatures up to 200F.
    • If the environment is particularly aggressive, or if industry codes (I’m looking at you, food & pharma) call for it, we can also make them out of other materials.  We’ve, for instance, made them out of 316SS, complete with material certifications, when needed.
  • Flow & temperature: the Hot Valve can be opened or closed to dial in a particular Cold Fraction (that’s the percentage of the supply air which is directed to the cold end.)  If you know what flow rate and temperature you want, we can replace the Hot Valve with a non-adjustable plug, so your Vortex Tube’s cold flow is only dependent on the compressed air supply temperature and pressure.
  • Accessories: if you’re looking for features like a magnetic base, or a flexible cold air hose, you might consider an Adjustable Spot Cooler.  If you like the idea of tool-free change of air flow/temperature, that’s definitely the way to go.  If you want those other options, and don’t mind using a screwdriver to adjust the Cold Fraction, those other options are compatible with any Medium Vortex Tube.
Model 3925 Adjustable Spot Cooler

These are just a few of the most common possibilities for customizing a Vortex Tube.  If you have a spot cooling application you’d like to discuss, give me a call.

Russ Bowman
Application Engineer
EXAIR Corporation
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Compressed Air: Only as Intelligent as Your Accessories

How often have you seen a compressed air system functioning at 100% efficiency? Do you have the right accessories to provide a source of clean air at the proper pressure? Even with the right accessories, have they been maintained in good working order? Chances are that some of your components are in fact in need of attention such as a clogged filter, improper regulator or maybe undersized hoses. Your air compressor is only as intelligent as the weakest component in your system.

This is why you need to make sure all of your EXAIR accessories are properly fitted and located in the most efficient locations. Your compressor is capable of producing compressed air but your accessories will allow it to function the way it is meant to function. Using accessories and using them in the right manner is the intelligent choice, it will minimize your maintenance while increasing your energy efficiency for the life of your compressor. Let’s review a few of the most important compressed air accessories you should consider.

Filter Separators: Filters remove and separate water, dirt and scale from your compressed air system to keep your air clean and output pure. Clean air keeps your air products and machines more efficient and reduce the frequency of maintenance. Filter Separators will accumulate particulate matter naturally so they will need cleaned and/or replaced filter elements regularly depending on your operating environment. EXAIR provides Filter Separators and recommend they be installed prior to an Oil Removal Filter, pressure regulator or valve.

Filter Separators

Oil Removal Filters: Many air compressors use oil to lubricate therefore the risk of oil in your air lines is imminent. Although oil may not affect the compressed air system itself it can become a problem with products which do not require oil and have small air gaps. It can also be problematic if oil is blowing on to packaging or the final product. Keep this in mind and remember that oil should be removed from compressed air lines in certain instances. EXAIR’s oil removal filters will remove oil and solid particulate found in many compressed air systems.

Pressure Regulators: Regulators adjust the air pressure being supplied by your air compressor to the level that you require at the point of use. For instance your compressor generates 150 PSI but your compressed air product only requires 80 PSIG, the regulator can adjust the pressure to the desired setting and also relieve undue pressure on fittings, hoses and tools. Reducing pressure at the end-use product will also reduce the air consumption. Almost every compressed air application will use tools with varying pressure ratings making EXAIR Pressure Regulators a must-have accessory.

Hoses & Fittings: Hoses and fittings wear with time. Common issues are kinking, bending, leaks and contaminants, they should be checked often and replaced when required. Another common problem with hoses is that they are either too long and not as efficient or too short which can cause your employees reduced productivity. EXAIR offers STAY SET Hoses, Conveying Hose, Coiled Hoses and Compressed Air Hoses of different sizes and lengths. Our selection of compressed air fittings insures you can get all you need from one location.

Receiver Tanks: The use of receiver tanks can improve your overall system efficiency. Storage receivers can be placed near equipment that consume short duration of high flows of compressed air that might cause localized low pressure. EXAIR’s 60 Gallon Receiver Tank placed near the point of use can smooth out the high flows so as not to cause the start of an extra air compressor or cause localized low pressure.

If you would like more information regarding how proper use of EXAIR’s accessories can make your compressed air consumption more intelligent please contact me or any of our qualified Applications Engineers to discuss your applications.

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

 

Are EXAIR’s Hoses and Tubes Right For You?

Are you tired of ducking and dodging hard pipe everywhere? Do you need something more mobile for your compressed air? Then EXAIR Hoses and Tubes might be a solution for you. EXAIR offers a variety of hoses and tubes in different styles designed to work with our products without affecting performance. These products simplify the use, setup, and integration of our various products into your process. Normally if you were to buy hoses you would need to determine the proper diameters, pressure ratings, and/or end fittings to best fit the item in use. This is all unnecessary when purchasing EXAIR’s Hoses and tubes for EXAIR products since everything is sized and properly rated to be used with our products. So, ask our Application Engineers if EXAIR Hoses and Tubes are right for you.

 Products may include the following.

Line Vac air operated conveyor hose
Conveying Hoses:

These hoses are used with our Air Operated Conveyors or Line Vacs which are used to convey material from point A to point B. The hose can be mounted on either side of the Line Vac using the properly sized hose clamp that comes with it. The Conveyance hose is made out of a durable PVC semi-flexible material in sizes from ¾” I.D. to 3” I.D. to match our Line Vac sizes. They also come in lengths up to 50’ in increments of 10’.

Coiled hose
Coiled Hoses:

When it comes to getting compressed air to our safety air guns, we offer a series of abrasion-resistant nylon Coiled Hoses. The coiled hose comes in a 12’ long length and comes in 3 sizes; these sizes are 1/8” NPT, ¼” NPT, and 3/8” NPT to attach right to EXAIR’s Safety Air Guns. The hoses also include swivel fittings to make for easier uncoiling. The coiled design makes it easy to reach around the work area and retract back to the substation. With the right size hose Coiled Hoses can supply the required amount of compressed air with minimal amount of pressure drop.

Compressed air hose
Compressed Air Hoses:

Compressed Air Hose can be used to reach equipment from overhead or near equipment. These hoses are made with synthetic rubber and comes in 3/8” I.D. and ½” I.D… Lengths up to 50’ long can be provided and the hoses are rated for up to 250 psig air pressure. These hoses can provide lasting protection from ozone, weathering and temperatures up to 158oF. They also come with two male ends in ¼” NPT or ½” NPT.

Stay Set Hoses
Stay Set Hoses:

Bendable and flexible, the stay set hose allows for manual positioning of your compressed air product. Equipped with “memory” function, the hose will not creep or droop until it is physically moved. The Stay Set Hose comes in lengths from 6” to 36” in length, and they offered in a combination of 1/8” and ¼” MNPT connections. These hoses are rated for 250 psig and are made of a reinforced rubber.

E-Vac Tubing

Vacuum Tubing:

When it comes down to our E-Vac product line, EXAIR offers vacuum tubing to be used along with the unit. This tubing is made from polyurethane and comes in 1/8” O.D. and 3/8” O.D. up to 50’ in length in increments of 10’.

If you have any questions about compressed air systems or want more information on any of EXAIR’s products, give us a call, we have a team of Application Engineers ready to answer your questions and recommend a solution for your applications.

Cody Biehle
Application Engineer
EXAIR Corporation
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Products Built to Last and Maintenance Free

As an avid outdoors man, I have learned a lot about myself during these days of quarantine and social distancing; mainly I don’t quarantine very well. With all the climbing gyms closed, traveling strongly discouraged, and social distancing in place my  lifestyle has been brought to a grinding halt much like many of us. opening up, which will be good for all of us. 

So, in place I have taken upon myself to learn a new hobby that I can do solo and safely. In the past weeks I have spent learning about mountain biking and all that comes with it. This includes the maintenance required to work on a bike, specifically the front derailleur which controls the front major gear changes (and gets damaged if crashed). Realigning the front derailleur is one of the hardest fixes that one can do on a bike as it has three different adjustments that need to be made at the same time. Thus, I embarked on a week long project of learning how to make the adjustment and man was it frustrating.

Performing tricky maintenance can be one of the most frustrating and stress inducing things when all you really want is for something to work without any hassle. Whether its hours just trying to figure out what the issue is or actually fixing it, let’s be honest, it never goes as planned. The same can be said for maintenance on things such as compressors, cars, and production equipment. Here at EXAIR we strive to eliminate this frustration and hair pulling maintenance and replace it with maintenance free products.

EXAIR’s lines of compressed air products such as our Vortex Tubes, Super Air Amplifiers, and Super Air Knives have no moving parts. No moving parts means no wear down parts and no wear down parts means little to no maintenance. Besides the occasional air filter element change out or something getting lodged inside the product EXAIR’s compressed air products will run almost indefinitely as long as they are supplied with a source of compressed air, typically run through a standard 5 micron filter separator. 

Although you cannot really prevent dirt from collecting in a filter separator (that is, in fact what they are meant to do) you can prevent dirt, dust, and debris from getting into your products by using one of EXAIR’s Filter Separators. Filter Separators remove water condensate, dirt, dust, and debris from your compressed air line before it enters your compressed air product. This prevents the particles from disrupting small air outlets or lodging in the small pathways inside our compressed air products and keeps the product running like new.

All in all, maintenance is not fun to have to deal with and can be costly at times. By using EXAIR’s engineered compressed air products you can eliminate at least one thing to worry about on your list of maintenance that needs to be performed. With a little bit of preventive measures you can keep our products running like new for years and years.

If you have any questions or want more information on any EXAIR’s of our products, give us a call, we have a team of application engineers ready to answer your questions and recommend a solution for your applications.

Cody Biehle
Application Engineer
EXAIR Corporation
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