Choosing the Best Chip Vacuum for Your Application

One Christmas, a long time ago, my Mother In Law gave me a beautifully wrapped present, and a great big smile.  I opened it up…it was an extension cord.  One of those heavy duty orange, indoor/outdoor, 100 foot long models.  I returned her smile, while thinking about all the things I might be able to use it for…and not coming up with anything really solid.

As the family continued to open presents, she disappeared into the other room, and came back with a much larger package and handed it to me…still with that great big smile.  It was a convertible string trimmer; one that worked as a ‘weed eater’ or, with a twist of the handle, an edger.  And it was electrically operated…NOW I knew what the extension cord was for.  As great and useful a gift it was – eighteen years on, and I’m almost competent at edging the sidewalk – I got a valuable lesson from it: accessories make a great gift better.  Since then, I’ve always thoughtfully considered:

  • If I give someone a battery operated gift, I give them batteries too.
  • If it comes with its own rechargeable battery, I carefully open the package and charge it up, before I wrap it up.
  • If accessories are available, I think about how they might use it.  I’ve even presented them with the accessory first, in tribute to my wonderful wife’s wonderful Mom.
  • If there’s a “deluxe” or “premium” version, sometimes it’s worth it to just go all out…again, after consideration of how they might use it.

Now, this is not only the case with presents…many household, commercial, or industrial products offer Deluxe or Premium packages…like the EXAIR Chip Vac System.

At the most basic level, a Model 6193 Chip Vac System for 55 Gallon Drum is all you need to turn an existing drum into a powerful, reliable, durable industrial vacuum.  It comes with a lid & latch ring, Filter Bag, 10 foot vacuum hose, a set of plastic tools, and of course, the Chip Vac itself.  All you need for simple, on-the-spot cleanup purposes.

Model 6193-30 is also available for your existing open-top 30 Gallon Drum.

Sometimes you might have (literally) more ground to cover: the Model 6293 Deluxe Chip Vac System adds a Drum Dolly for mobility, and a Tool Holder to keep the attachments handy.

Deluxe Chip Vac Systems come with a Dolly and Tool Holder in 5 Gallon (left,) 30 Gallon (center,) and 55 Gallon (right) sizes.

Other times, you may just be looking for a complete system, ready to handle everything, right out of the box.  Enter the Model 6393 Premium 55 Gallon Chip Vac System, which adds a heavy duty steel drum, an upgrade to Heavy Duty Aluminum Tools & Static Resistant Vacuum Hose, and a 20ft Compressed Air Supply Hose with Pressure Gauge & Shutoff Valve.

Premium Chip Vac Systems are ready for any cleanup job, right out of the box, and come with 30, 55, or 110 Gallon Drums.

Or, if you’re looking for something lightweight & compact, the Model 6193-5 Mini Chip Vac System comes complete with a 5 gallon drum, and the Model 6293-5 Deluxe Mini Chip Vac System adds a Drum Dolly.

The Mini Chip Vac System comes complete with a 5 Gallon Drum, and the Deluxe System adds a Drum Dolly for mobility.

With no moving parts to wear and no electrical components to burn out, the EXAIR Chip Vac is a virtually maintenance free replacement for noisy, damage-prone electric vacuums.  If you’d like to find out just how handy they are, give me a call.

Russ Bowman
Application Engineer
EXAIR Corporation
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Starting a Leak Prevention Program

Since all compressed air systems will have some amount of leakage, it is a good idea to set up a Leak Prevention Program.  Keeping the leakage losses to a minimum will save on compressed air generation costs,and reduce compressor operation time which can extend its life and lower maintenance costs.

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There are generally two types of leak prevention programs:

  • Leak Tag type programs
  • Seek-and-Repair type programs

Of the two types, the easiest would be the Seek-and-Repair method.  It involves finding leaks and then repairing them immediately. For the Leak Tag method, a leak is identified, tagged, and then logged for repair at the next opportune time.  Instead of a log system, the tag may be a two part tag.  The leak is tagged and one part of the tag stays with the leak, and the other is removed and brought to the maintenance department. This part of the tag has space for information such as the location, size, and description of the leak.

The best approach will depend on factors such as company size and resources, type of business, and the culture and best practices already in place. It is common to utilize both types where each is most appropriate.

A successful Leak Prevention Program consists of several important components:

  • Baseline compressed air usage – knowing the initial compressed air usage will allow for comparison after the program has been followed for measured improvement.
  • Establishment of initial leak loss – See this blog for more details.
  • Determine the cost of air leaks – One of the most important components of the program. The cost of leaks can be used to track the savings as well as promote the importance of the program. Also a tool to obtain the needed resources to perform the program.
  • Identify the leaks – Leaks can be found using many methods.  Most common is the use of an Ultrasonic Leak Detector, like the EXAIR Model 9061.  See this blog for more details. An inexpensive handheld meter will locate a leak and indicate the size of the leak.

    ULD_Pr
    Using the Model 9061 Ultrasonic Leak Detector to search for leaks in a piping system
  • Document the leaks – Note the location and type, its size, and estimated cost. Leak tags can be used, but a master leak list is best.  Under Seek-and-Repair type, leaks should still be noted in order to track the number and effectiveness of the program.
  • Prioritize and plan the repairs – Typically fix the biggest leaks first, unless operations prevent access to these leaks until a suitable time.
  • Document the repairs – By putting a cost with each leak and keeping track of the total savings, it is possible to provide proof of the program effectiveness and garner additional support for keeping the program going. Also, it is possible to find trends and recurring problems that will need a more permanent solution.
  • Compare and publish results – Comparing the original baseline to the current system results will provide a measure of the effectiveness of the program and the calculate a cost savings. The results are to be shared with management to validate the program and ensure the program will continue.
  • Repeat As Needed – If the results are not satisfactory, perform the process again. Also, new leaks can develop, so a periodic review should be performed to achieve and maintain maximum system efficiency.

In summary – an effective compressed air system leak prevention and repair program is critical in sustaining the efficiency, reliability, and cost effectiveness of an compressed air system.

If you have questions about a Leak Prevention Program or any of the 16 different EXAIR Intelligent Compressed Air® Product lines, feel free to contact EXAIR and myself or any of our Application Engineers can help you determine the best solution.

Brian Bergmann
Application Engineer
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Promotional Item: Gen4 Static Eliminators and a free AC Sensor

As the weather gets colder and the air gets dryer, static electricity can become a real nuisance in a production plant.  Machines will start jamming, alignments will be difficult, debris will collect on surfaces, and hazardous sparks can shock personnel.  EXAIR manufactures a large line of Gen4 Static Eliminators to remove this static nuisance.  And beginning January 1st, 2019; EXAIR will be giving away a free AC Sensor, a $57.00 value, with a purchase of any of the Gen4 Static Eliminators.

EXAIR stocks eight different product lines in two different styles, Gen4 Static Eliminators with Air and Gen4 Static Eliminators without Air.  In conjunction with a power supply, these ionizers can create both negative ions and positive ions to remove any type of static charge that is on the surface.  The Gen4 Power Supplies come in either a 2 port or 4 port configuration; so that, you can power multiple Gen4 Static Eliminators at once.  From the power supply to the ionizer, an armored and electromagnetic shielded cable is used in a single wire design. This helps to protect the cable from abrasions, cuts and splits in industrial areas.   The Gen4 Static Eliminators have a shockless design, and are UL Component Recognized and CE compliant.  I will give a brief description of each product that utilizes this rugged industrial design for optimal static neutralization.

Gen4 Static Eliminators with Air:

Gen4 Super Ion Air Knife
  1. Gen4 Super Ion Air Knife: This product has the best compressed air efficiency in removing static by combining the Super Air Knife with an Ionizing Bar.  The Gen4 Super Ion Air Knife has a 40:1 amplification ratio and uses the laminar air flow to carry the positive and negative ions to the surface up to 20 feet (6.1 meters) away.  The laminar air flow also allows for a quick static discharge in applications with fast conveyance speeds.  EXAIR manufactures stock lengths from 3” (76mm) to 108” (2.74 meters).  Some typical applications for the Gen4 Super Ion Air Knife are found in web cleaning, sheeters, pre-paint dust removal, and shrink wrappers.

    Gen4 Standard Ion Air Knife
  2. Gen4 Standard Ion Air Knife: Similar to the Gen4 Super Ion Air Knife, the Gen4 Standard Air Knife has a good efficiency at 30:1 amplification ratio.  It utilizes the Coanda effect to draw in ambient air, and they come in stocked lengths from 3” (76mm) to 48” (1.22 meters).  The Gen4 Standard Ion Air Knife are used in similar applications as well as mold releasing, package cleaning, label applications and plastic bag opening.

    Gen4 Super Ion Air Wipe
  3. Gen4 Super Ion Air Wipe: This product blows ionized air in a 360-degree pattern.  They are engineered to remove static and debris from the outside of hoses, plastic pipes, extrusions, and coated wires.  With the split design, the Gen4 Super Ion Air Wipe can easily mount around the product without having to rethread.  They come in two different sizes with a 2” (51mm) and 4” (102mm) inner diameter. The ionized air has a fast decay in removing static for speedy transfers.

    Gen4 Ion Air Cannon
  4. Gen4 Ion Air Cannon: Just like the name, this product will shower an area with ions to remove static. It can reach distances up to 15 feet (4.6 meters).  They are used in multiple areas including pre-paint car bodies, containers, shrink packaging, lenses, etc.  As an Air Amplifier, a small amount of compressed air will draw in a large amount of ambient air.  The ions are carried to the surface by the Gen4 Ion Air Cannon in a laminar air steam.   Once the ions coat the surface area, the air flow can gently remove any debris held by static forces.

    Gen4 Ion Air Gun
  5. Gen4 Ion Air Gun: For manual static removal to target specific areas, the Gen4 Ion Air Gun will work great.  This product comes standard with 10 feet (3 meters) of shielded cable for maximum reach.  An ergonomic air gun is attached to a Gen4 Ion Air Jet to manually remove static in difficult areas and to pre-treat within “shock” zones.  The Ion Air Guns work great for small batch processes used for quality checks or label applications.

    Gen4 Ion Air Jet
  6. Gen4 Ion Air Jet: Similar to the Ion Air Gun, this product is used for “hands-free” operations. They use a small amount of compressed air to “shoot” the ions onto a target area.  They can be operated with a solenoid valve or foot pedal to blow ions during specific times and situations.  They can easily be attached to a Stay Set Hose and Magnetic Base for best “hands-free” positioning for optimal cleaning.  They work well on small targets for automated systems or inspections areas prior to packaging.

Gen4 Static Eliminators without Air:

Gen4 Ionizing Bar
  1. Gen4 Ionizing Bar: This rugged design is for industrial use to remove static cling from flat surfaces. They range in length from 3” (76mm) to 108” (2.74 meters).  Without the assistance of air, the product has to be within 2 inches (51 mm) from the surface to remove static charges.  The Gen4 Ionizing Bar is compact, shockless and works well in applications where blowing air could be a detriment.  The applications would include screen printing, labeling, and large printing processes.

    Gen4 Ionizing Point
  2. Gen4 Ionizing Point: This single point design is manufactured to remove static on small targets in tight spots.  Utilizing the same rugged design, this product can remove static in spot areas and help to stop jams from slitting operations. They can also be panel mounted to neutralize areas using ducted air.
Model 7929 EXAIR AC Sensor – FREE to end user customers when purchasing ANY EXAIR Gen4 Static Eliminator through March 31st, 2019

Now how about that free promotional item, the AC Sensor, with a purchase of any of the Gen4 Static Eliminators above?  This device, as mentioned above, has a $57.00 value which you can get for free.  This sensor provides a non-contact way to verify if voltage is present.  A red light at the tip will glow, and an audible tone is sounded when voltage is detected.  The model 7929 AC Sensor is an ideal tool to quickly verify that power is going to your ionizer.  This instrument will also work for finding power in receptacles, junction boxes, switches and breaks in power cords.  Batteries will be included, so you can start using it right after receiving the robust Gen4 Static Eliminators.

If you are an end-user and located within the United States or Canada, you can take advantage of this offer until March 31st, 2019.  An Application Engineer at EXAIR will be happy to assist you with your application and a solution with the Static Eliminators.  And if you qualify, a free AC Sensor.

John Ball
Application Engineer

Email: johnball@exair.com
Twitter: @EXAIR_jb

What Causes Static Electricity?

We’ve all been shocked before. And no, I’m not talking about the feeling we all here in Cincinnati felt when the Cincinnati Bengals finally fired Marvin Lewis… I’m referring to the discharge you’ve likely felt on a cold winter day after walking across a carpeted surface and touching a door knob. This electrostatic discharge is a result of static electricity. To understand how this static electricity is generated, let’s first go back to basic chemistry class and talk about the atomic structure of an atom.

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An atom consists of three basic particles: protons, neutrons, and electrons. The protons (positively charged) and neutrons (neutral charge) form the nucleus. Outside of the nucleus, electrons (negatively charged) are quickly zipping around in orbits at specific distances from the nucleus. These electrons are bound to the nucleus due to electromagnetic force. Opposite charges attract, since the protons in the nucleus carry a positive charge this acts on the negative charge of the electrons and keeps them in orbit. The closer the electron to the nucleus, the stronger the bond and the more energy required to break that electron from its original orbit.

When an atom gains or loses an electron, it affects the balance that occurs within an atom. If an atom gains an electron, it now has more electrons than protons. This results in a negatively charged atom. The opposite can be said if an atom loses an electron, it now carries a positive charge. This charge imbalance is where static electricity comes from. Both positive and negative charges will remain static until contacted by or in close proximity to a conductive or grounded surface.

The strength of this charge will depend on a few different factors: the types of materials, surface area, environmental conditions, etc. will all play a role in the generation of a static charge. The triboelectric series is a scale, listing various different materials and their tendency to become positive or negative. Those at the far end of the spectrum have an increased propensity to gain or lose an electron, while those in the center are more likely to remain balanced. When two materials on opposite ends of the spectrum come into contact with one another, it poses the greatest risk of generating high levels of static electricity. The chart below shows some common materials and where they fall on the tribolectric series.

triboelectric

When materials carry a static charge, a variety of problems can ensue during manufacturing. These can manifest in the form of painful shocks to operators, materials jamming or tearing, sheet feeding problems, discharges causing imperfections in the material appearance, etc. To remove the charge, we need to introduce static eliminating ions to balance it out. EXAIR’s full line of Static Eliminators create an equal number of both positive and negative ions to saturate the surface of the material and neutralize any charge present.

With a wide range of different solutions all available from stock, EXAIR has the solution to your static problems this winter. Give us a call and we’ll be happy to discuss the application and help to identify the best method to mitigating any static issues in your processes. Take advantage of EXAIR’s current promotion (now through the end of March) and receive a free AC Sensor with your Static Eliminator purchase!

Tyler Daniel
Application Engineer
E-mail: TylerDaniel@exair.com
Twitter: @EXAIR_TD

 

Atom photo courtesy of janjf93 via Pixabay Creative Commons License

Adjustable Air Amplifiers Aren’t Just About Adjustability

Adjustability is a key feature for a great many devices:

  • An adjustable wrench – or as I like to call it, the trusty “all 16ths” – is my go-to for work around the house involving anything with a hex…fittings under the sink when I’m cleaning out a drain, nuts & bolts on furniture or household items needing some tightening (or loosening,) etc.  I don’t get out my combination-end wrenches for much except automobile maintenance.
  • Speaking of sinks, my kitchen faucet lets me adjust water flow (and temperature) which is important because I use different flow rates (and temperatures) if I’m getting a tablespoon of water, or if I’m rinsing my hands, or if I’m filling the sink to do dishes.
  • Speaking of tablespoons, I’ve even got an adjustable measuring spoon that lets me get a full tablespoon, a half a teaspoon, or anywhere in between, by moving a lever block back & forth in the spoon head.

Adjustability is a key feature for several EXAIR Intelligent Compressed Air Products too…like our Adjustable Air Amplifiers.  The ‘adjustable’ part has to do with setting the air flow:

Just loosen the locking ring, and you can thread the plug out of, or in to, the body to increase, or decrease the flow and force of the developed flow.  There’s a hole in the plug (opposite the “EXAIR.com” stamp) so you can use a spanner wrench (another adjustable tool!) to thread the plug in or out.

You can get an amazing range of flow from a little twist*:

These are the performance values for a Model 6042 2″ Aluminum Adjustable Air Amplifier with a compressed air supply pressure of 80psig. Regulating the pressure can give you even lower…or higher…flows.                                              *0.002″ to 0.010″ is about 1/4 turn of the plug.

A gap of about 0.010″ is about the max for 80psig supply pressure.  Above that, the air flow overwhelms the Coanda profile, creating a turbulent ‘storm’ in the throat, hampering the efficiency and effectiveness.  The proper “adjustment” for that is to select the next larger Air Amplifier!

While the range of air flow is certainly impressive, their versatility is another major factor in their selection.  I reviewed our Application Database (registration required) for real-life details on Adjustable Air Amplifiers “in the field” and found a litany of other benefits that made them better suited to particular installations than a Super Air Amplifier:

  • A customer who builds automated equipment incorporates the Model 6031 1-1/4″ SS Adjustable Air Amplifier to blow open bags with a puff of air as they move into position on an automated filling machine. They use it because it’s available in stainless steel construction, and it’s still compact & lightweight.
  • A mattress manufacturer uses Model 6043 3″ Aluminum Adjustable Air Amplifiers to  cool mattress springs.  They’re lightweight, the perfect size to match the springs’ profile, and they can “dial them out” for high heat removal before putting springs on a rubber conveyor.
  • A tier 1 automotive supplier has Model 6234 4″ SS Adjustable Air Amplifier Kits installed on their robotic paint line to blow off moisture from parts to prevent water spotting between the wash cycle and the oven.  They use them because the stainless steel construction holds up to high heat due to the proximity to the ovens.
  • A food plant uses Model 6031 1-1/4″ SS Adjustable Air Amplifiers to improve the drying time of 3,000 liter mixers that must be washed between batches of different products.  The stainless steel construction holds up to the rigors of the frequent washdown in this area.
  • A bedding manufacturer replaced a regenerative blower with a Model 6041 1-1/4″ Aluminum Adjustable Air Amplifier for trim removal on stitched fabric at bedding manufacturer.  The blower was prone to failure from lint & dust; the Air Amplifier, with no moving parts, is not.  It’s also compact, lightweight, and virtually maintenance free.
  • A light bulb manufacturer installed Model 6030 3/4″ SS Adjustable Air Amplifiers on the ends of open pipes that were used to cool mercury lamp wicks.  This reduced noise levels significantly while providing the same cooling rate, and the stainless steel construction holds up to the heat of the operation.

Because of the simplicity of their design, Adjustable Air Amplifiers are also extremely adaptable to custom applications.  We’ve added threads or flanges to the inlets and outlets of several different sizes, to accommodate ease of mounting & installation:

Among other custom Air Amplifiers, we’ve put (left to right) threads on the outlet, ANSI flanges on the inlet/outlet, Sanitary flanges on the inlet/outlet, and Sanitary on the inlet/ANSI on the outlet. How are you installing your Air Amplifier?

Adjustable Air Amplifiers are available in both aluminum and 303SS construction, to meet most any environmental requirements…except extreme high heat.  In those cases, the Model 121021 High Temperature Air Amplifier is rated to 700°F (374°C) – significantly higher than the Aluminum – 275°F (135°C) or the Stainless Steel – 400°F (204°C).  They’re commonly used to circulate hot air inside furnaces, ovens, refractories, etc.

A Model 121021 1-1/4″ High Temp Air Amplifier directs hot air to a rotational mold cavity for uniform wall thickness of the plastic part.

Adjustability.  Versatility.  Durability.  If you’d like to know more about the Adjustable Air Amplifier, or any of EXAIR’s Intelligent Compressed Air Products, give me a call.

Russ Bowman
Application Engineer
EXAIR Corporation
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Super Air Wipe Overview

What do you do when you need to cool, blowoff, or dry extruded objects? How will you support the products to do these tasks, and how will you get your extrusions through them? Consider using engineered compressed air products air for these applications to provide instant on/off capability, fine tuning adjustment of the air flow, low noise levels and OSHA safety. The EXAIR Super Air Wipe is designed to work well with continuous production products like extrusions, wire and cable.

Super Air Wipe extrusion save
Implementing a Super Air Wipe salvaged a $30,000 job for this customer. Read all about it in our Case Study Library (registration required)

The Super Air Wipe is a highly efficient compressed air powered device that provides a uniform 360° air stream that is ideal for blowoff, drying, cleaning and/or cooling of pipe, cable, extruded shapes, hose, wire and more.

The clam shell design of EXAIR’s Super Air Wipe offers easy clamping around the surface of the material moving through it that eliminates the need for time-consuming and cumbersome threading.  All models utilize stainless steel screws and shims and for sizes up to 4″ (102mm) a Stainless Steel wire braided connecting hose is included.  Aluminum models are rated for temperatures up to 400°F (204°C) and stainless steel models for temperatures up to 800°F (427°C).

Mounting the EXAIR Super Air Wipe is very easy, it can be accomplished by using either the 1/4 – 20 tapped holes on the downstream side or by utilizing a hard pipe compressed air supply line.  Connecting the EXAIR Super Air Wipe to your compressed air supply is straightforward, there are (2) 1/4 FNPT compressed air inlets on throat sizes up to  7″ (178mm) diameter (one on each half), while the 9″ (229mm) & 11″ (279mm) diameters have a total of (4) 1/4 FNPT compressed air inlets (two per half) to ensure proper air volume for maximum performance.

Prior to the introduction of the Super Air Wipe, one way to blow off, dry, or clean extruded objects was to use a ring of air nozzles. The high air consumption and noise levels of the nozzles along with inconsistent air velocity often delivered poor results.

 

ring nozzle blow off

The Super Air Wipe, which is similar to the construction of EXAIR Super Air Knife provides a high volume, high velocity airflow that is uniformly ejected from the entire 360° of its inner diameter. The airstream adheres to the surface of the material running through it (Coanda Effect) to effectively wipe, clean or dry surfaces.

To further explain how the EXAIR Super Air Wipes work, reference the animation below: Compressed air flows through the inlet (1) of the Air Wipe into the 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 down the angled surface of the Air Wipe.  A low pressure is created at the center (5) inducing a high volume flow of surrounding air into the primary airstream.  As the airflow exits the slot, it creates a conical 360° ring of air that will attach to the surface of the material running through it (6) uniformly wiping the entire surface with the high velocity airflow.

sawworksani
How The Super Air Wipe Works

The EXAIR Super Air Wipe is 1.13″ (29mm) thick on all (11) Aluminum models that range in size from 3/8″ (10mm) to 11″ (279mm) throat diameter and all (5) Stainless Steel models that range in size from 1/2″ (50mm) to 4″ (102mm).   The performance can be altered by changing the inlet air pressure or by adding an additional shim, which will nearly double the force!

Super Air Wipe Family Photo
The Aluminum Super Air Wipe is available in 11 sizes 3/8″, 1/2″, 1″, 2″, 3″, 4″, 5″, 6″, 7″, 9″ & 11″; the Stainless Steel Super Air Wipe comes in 5 sizes, 1/2″, 1″, 2″, 3″ & 4″…all from stock!

So when you need to cool, blow off or dry extruded objects or are looking for expert advice on safe, quiet and efficient point of use compressed air products, give us a call.  We would enjoy hearing from you!

Steve Harrison
Application Engineer
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Choosing the Right Vortex Tube – Max Refrigeration vs. Max Cold Temperature

The Vortex Tube is a low cost, reliable, maintenance free way to provide cooling to a wide variety of industrial spot cooling problems.

VT_air2

There are two (2) popular uses for the Vortex Tubes.  One is to spot cool a warm item as fast as possible.  The other is to chill an item to as low a temperature as possible. Because these are very different requirements, different Vortex Tube configurations exist to handle each.

For those applications of spot cooling, we recommend the 3200 series of Vortex Tubes. They are designed to be most efficient at providing maximum refrigeration, which is a function of high cold air flow rate and moderate temperature differential of the cold air to the warm item.

And for those applications of chilling an item to a very low temperature at low flow rate , we recommend the 3400 series of Vortex Tubes.  They are designed to be most efficient at providing maximum cold air temperatures, but with a lower cold air flow rate.

An important parameter for the Vortex Tubes is the Cold Fraction.  By adjusting the hot valve on a vortex tube, the amount of air that is discharged through the cold end changes. When expressed as a percentage of the total compressed air that is supplied to the vortex tube, we get the Cold Fraction.  For example, if the hot valve is adjusted so that for every 10 parts of compressed air supplied, we get 7 parts of cold air, then we have a 70% Cold Fraction. When you know the Cold fraction setting and the compressed air supply pressure, you can use the Vortex Tube Performance tables and get the cold air discharge temperature.

Using the table below left, at 100 PSIG compressed air pressure and a 70% Cold Fraction, we can expect the cold air discharge temperature drop to be 71°F.  With 70 ° compressed air temperature, the cold air will be at -1°F.

Vortex Tube Charts
Vortex Tube Performance Tables

The 3200 series of Vortex Tubes are for use in the 50-80% Cold Fraction range, and the model 3400 series is designed for use in the 20-50% Cold Fraction ranges, to maximize the performance of each.

In summary, the selection of the Vortex Tube that best meets the application needs is based on the desired cold air flow rate, and the temperature of air desired. Once these are known, using the tables can provide the information needed to select the best option.

For those applications where we are unsure what will work best, we offer the EXAIR Cooling Kits, that include a Vortex Tube (small, medium, or large) and an array of Generators, to allow the configuration of the full range of Vortex Tubes within each size family.

  • Model 3908 – Small Vortex Tube Cooling Kit – build models 3202, 3204, 3208, and 3402, 3404, 3408
  • Model 3930 – Medium Vortex Tube Cooling Kit – build models 3210, 3215, 3225, 3230, 3240, and 3410, 3415, 3425, 3430, 3440
  • Model 3998 – Large Vortex Tube Cooling Kit – build models 3250, 3275, 3298, 3299, and models 3450, 3475, 3498, 3499

3930

If you have questions about Vortex Tubes or any of the 16 different EXAIR Intelligent Compressed Air® Product lines, feel free to contact EXAIR and myself or any of our Application Engineers can help you determine the best solution.

Brian Bergmann
Application Engineer
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