Atomizing Nozzles Create Fog for Wet Room Testing

Recently, I was working with a customer that has purchased several of the EXAIR Atomizing Spray Nozzles, specifically the model Aw5020SS.  The customer had another project coming up and needed two more nozzles. I inquired about the application and we discussed at length the way the nozzles are being used.

When a concrete road is being poured, several sample forms are poured during the process. The local Department of Transportation takes the samples and cures them in a wet room for 30 days, and then performs tensile testing, to confirm the concrete meets the strength requirements.  The wet room must be kept at 23°C (73.4°F) and 100% Humidity during this time frame.  The EXAIR model AW5020SS Atomizing Nozzles are used to provide the moisture that ensures the room humidity conditions are met and maintained.  Because the droplets are very fine, the effect of a fog is achieved, with the water droplets suspended in the air, keeping the humidity at 100%.

Atomizing spray nozzles are capable of producing very fine droplet sizes.  A typical rain drop is 6000 microns in diameter, standard liquid nozzles produce droplets ranging from 300-4000 microns.  The EXAIR Atomizing Nozzles produce droplets from 20-100 microns!

AW5010pr800.jpg

Model AW5020SS

Droplet  sizes can be adjusted by varying either the liquid pressure or air pressure. Increasing the air or decreasing the liquid pressure will generally produce a smaller droplet size.

EXAIR manufactures (3) types of Atomizing Nozzles – Internal Mix, External Mix, and Siphon Fed, in both 1/4 NPT and 1/2 NPT sizes. Maximum liquid viscosity is 800 cP. Flow rates range from 0.6 GPH up to 303 GPH, so we’ll be able to find one that meets your flow requirements.

To discuss your application and how an EXAIR Atomizing Nozzle can benefit your process, feel free to contact EXAIR and myself or one of our other Application Engineers can help you determine the best solution.

Brian Bergmann
Application Engineer

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EXAIR No-drip Atomizing Nozzles – Finalist for Flow Control Magazine Innovation Award

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EXAIR No Drip Atomizing Nozzle

In this summer of 2016, we are nearing the beginning of one of the largest sporting events on the planet, The 2016 Summer Olympics. At the heart of this celebration will be sporting events of all kinds. And in the tradition of the Olympics there is always a gold, silver and bronze winner to award the top three athletes in each event.

EXAIR is participating in a competition as well. It isn’t one of a sporting nature, but rather, one of ingenuity and innovation. Flow Control Magazine holds an annual competition for innovations in new products available in industry and we have entered the No Drip Atomizing Nozzle into the competition.

In general, Atomizing Nozzles are used for the application of high value fluids within industrial processes. In some cases where the Atomizing Nozzles are mounted above the target, residual fluid that is left inside the nozzle body can drip out when de-energized and cause un-wanted blemishes on the target surface.

EXAIR No Drip Atomizing Nozzles allow for external adjustment of compressed air and liquid inputs to adjust the liquid spray flow rate as well as droplet size for a wide range of applications. That’s pretty common amongst atomizing nozzles in general. So what is so innovative about the No-Drip Atomizing Nozzles?

We have found a way to control the on/off function of the atomizing spray which supports the no-drip feature as well as the atomizing flow with only one compressed air supply. Most other manufacturers require a nozzle that has a separate control for the small valve within the nozzle and another for the airflow that atomizes the fluid coming through. It is this innovation that dramatically improves the simplicity with which these nozzles can be installed into an application and controlled through typical air automation techniques. It was innovative enough that the US Patent Office granted EXAIR a patent on the design (Patent # 9156045). So, we’ve made the No-Drip Atomizing Nozzle available with 3 different spray patterns and 14 different liquid volume options to suit a wide variety of application need. Operating pressures can fall anywhere between 30 – 250 PSIG to atomize fluids up to 300 centipoise.

If you agree with the US Patent Office on the innovation and think that EXAIR’s No Drip Atomizing Nozzles should be a winner in this competition, we would appreciate your official vote.

Please vote for the EXAIR No Drip Atomizing Nozzles at this link to the Flow Control Magazine’s Innovation Awards page.

Thank you!

Neal Raker, International Sales Manager nealraker@exair.com

@EXAIR_NR

Patented Nozzle is a 2016 Flow Control Magazine Innovation Awards Nominee!

No Drip Atomizing Nozzle

No Drip Atomizing Nozzle

The patented (no longer patent pending) EXAIR No-Drip Atomizing Spray Nozzles have been nominated and are a finalist in the Flow Control 2016 Innovation Awards.  The No Drip Atomizing Nozzles are just a portion of the entire Liquid Atomizing Nozzle products that EXAIR Offers.   The No-Drip’s patented liquid shut off valve design eliminates the need for a separate pilot air line to positively shut off liquid flow ensuring there are no drips or excess flow from the nozzle.  These are ideal when dealing with fine surface finishes, costly liquids, or intermittent spraying needs.  The nozzles are offered in both pressure fed liquid and siphon fed liquid versions.

For the pressure fed version, the nozzle will require both compressed air and a pressurized liquid source. Both pressures can be adjusted independently giving a large spectrum of adjustment to fine tune the spray pattern and droplet sizes.  The siphon fed nozzles can draw liquid up to 36″ vertically or be gravity fed up to 18″ overhead.  This makes installation quick and easy when a pressurized liquid source, or liquid pump is not at hand.

The No-Drip Atomizing Spray Nozzles have also proven themselves in many applications, you can even read about a few of them here on our blog, links below.

https://blog.exair.com/2013/11/13/no-drip-atomizing-nozzle-improves-deep-drawn-metal-process/

https://blog.exair.com/2016/03/22/atomizing-nozzles-have-added-benefits-that-can-really-help/

2013 Innovation Awards

2013 Innovation Awards

 

Some of the reasons the EXAIR No-Drip Atomizing Nozzles were selected for these applications are the patented no-drip valve, their ability to atomize liquids to a range of 22-71 micron droplet size, the ability to fit into a tight space as well as the many spray pattern options.   These features have ranked the nozzles as a finalist in Flow Control’s 2016 Innovation Awards.

We are very grateful if you choose to vote for our nozzle at the link below. Please vote.

http://www.flowcontrolnetwork.com/innovationawards/

Voting is only open through July 31, 2016.  We’ll make sure to keep you updated if we win!

Brian Farno
Application Engineer Manager
BrianFarno@EXAIR.com
@EXAIR_BF

EXAIR Atomizing Spray Nozzles Explained

From their introduction just a few short years ago, to the addition of ½ NPT units more recently, EXAIR’s line of Atomizing Spray Nozzles has quickly become one of our most diverse product lines. We’ve got:

*44 Models to choose from. Technically, 88, if you count the patent pending No-Drip feature that they’re all available with.  More on that in a minute.

*Numerous styles:
Internal Mix Spray Nozzles provide the widest range of adjustment. Changes to air pressure, liquid pressure, and the needle valve position will all change the flow rate and pattern. The ¼ NPT models come in Narrow or Wide Angle Round, Flat Fan, Deflected Flat Fan, and Hollow Circular Patterns.
The ½ NPT models come in Narrow or Wide Angle Round, Flat Fan, or Hollow Circular Patterns.

Narrow Angle Round Pattern Internal Mix Atomizing Spray Nozzle

Narrow Angle Round Pattern Internal Mix Atomizing Spray Nozzle

External Mix Spray Nozzles give you the option of changing the flow rate and pattern independently, by changing the liquid or air supply pressures, respectively. The ¼ NPT models come in Round and Narrow or Wide Angle Flat Fan patterns. The ½ NPT comes in Narrow Angle Flat Fan pattern only. These are also the best choice for higher viscosity fluids.

External Mix Atomizing Spray Nozzles offer independent adjustment of flow rate and pattern.

External Mix Atomizing Spray Nozzles offer independent adjustment of flow rate and pattern.

Siphon Fed Spray Nozzles are used when it is impractical or undesirable to pressurize the liquid supply. By changing the siphon (or gravity) height, these nozzles, unit for unit, provide the widest adjustability in flow rate. The ¼ NPT models come in Flat Fan and Narrow or Wide Angle Round patterns. The ½ NPT comes in Round pattern only. Because they rely on an unpressurized feed of liquid, these are best suited for liquids with lower viscosities.

No-Drip Feature: All of our Atomizing Spray Nozzles are available with a No-Drip feature…they use the compressed air supply to open the valve, and when it’s turned off, so is the nozzle – with no air supply, an internal needle valve positively stops the flow of liquid.

  • Availability. All of these are in stock, ready to ship same day.
  • Mounting Brackets. Our “clip” style brackets provide for quick and easy mounting & support.
  • Expertise. This is where the rubber hits the road. Or, perhaps I should say, where the coating hits the wood, the paint hits the steel, the coolant hits the surface, etc. By that, I mean that whatever you want to spray, mist, coat, quench, wet down, cool, rinse, etc., we’re ready to discuss your particular application and help you find the right Spray Nozzle. Call us to find out more.

Russ Bowman
Application Engineer
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Excellence Is Not An Act, But A Habit

“We Are What We Repeatedly Do. Excellence, then, is not an Act, But a Habit”

In my twitter feed I often see the aforementioned quote that is attributed to Aristotle. As this blog points out, the quote should really be attributed to Will Durant author of The Story of Philosophy, because it is his interpretation of what Aristotle would have said if he spoke English. While writing this blog I found out Aristotle didn’t really write the quote. In retrospect, clearly he didn’t write, if he did it might look something like this “Είμαστε Τι επανειλημμένα Do. Αριστείας, τότε, δεν είναι μια πράξη, αλλά μια συνήθεια”, but I digress.

Working with customers, resellers and catalog houses, I’m amazed at the different company cultures. Some customers will come to me six months before a project comes up to talk about the applications. They ask us for drawings, specifications, and certifications for the products that we recommend for their applications. They want to analyze all possible scenarios and plan for every eventuality.  These customers greatly appreciate our fully loaded knowledge base and availability of technical information.

Other customers call me for a quote and confirmation. They spent some time online, downloaded a CAD model and created a working plan, but before they pull the trigger, they want to run it by someone else. These customer greatly appreciate the fact that the phones are answered by human beings and we have a fully staffed Application Engineering department with engineers who are always eager to discuss applications and possibilities.

Finally, we have the customers, who I never spoke to before that need a product NOW and are willing to do anything to get. Shipping companies love these customers, because we have our products on the shelves ready to ship, but it will cost you air freight and a flux capacitor to get it there yesterday.

 

At EXAIR, our culture expects excellence. And no matter the kind of customer who contacts us, we know you are all trying to achieve it too – we are just trying to help. When our customer calls in to ask for something yesterday, we will already have it on the shelf ready to go. Unless it is a custom product, our production staff has already machined, built, and tested our product to our excellent standard.  I’m constantly amazed at the effort and continued excellence put out by customer service, engineering, marketing, and production. When the customer calls in to ask for product yesterday, 99.98% of the time I’m able to say that the shipment will be at the dock waiting for the shipping truck by 3:00 PM EST. We can typically do that without an extraordinary effort, because we practice excellent customer service everyday. It’s a habit we are not trying to quit.

Dave Woerner
Application Engineer
DaveWoerner@EXAIR.com
@EXAIR_DW

 

 

Questions for Selecting an Atomizing Spray Nozzle

AN1010SS

Did you know that the air and liquid caps of EXAIR Atomizing Nozzles are interchangeable? Maybe you do. But, do you know which parts are interchangeable? And, did you know that EXAIR Application Engineers have a quick reference chart for such information?

When it comes to liquid spraying, our customers will write to me for application assistance, technical specifications, and potential uses for Atomizing Nozzles. Sometimes the need is for new methods to apply liquid in an existing application.

Rubber Extrusison Painted with AN1010SS

This was the case in the photo above. The end user needed to apply a thin line of paint on a rubber extrusion. After the rubber is dried, it needs to be marked for easy identification during later handling. Using an AN1010SS, the end user has the option to apply atomized paint, and to automate the process so that paint is applied only as needed.

Atomizing Nozzles are also suitable for dust suppression (for example, at a waste transfer system), humidification (such as soften wood for processing), improving costly liquid usage, or spraying oil lubricant.
The best way to categorize an application for use with an Atomizing Nozzle is through a series of (5) questions.

  1. What is the desired spray pattern?
  2. What is the area size to be covered?
  3. How much liquid flow is required?
  4. Is there a pressurized liquid source?
  5. What is the viscosity of the fluid to be atomized?

Based on the answer to these questions the proper Atomizing Nozzle can be selected. If you need clarification on how these questions correlate to model number selection, a full staff of engineers are available for chat through EXAIR.com or over the phone/by email.

Lee Evans
Application Engineer
LeeEvans@EXAIR.com
@EXAIR_LE

You Can Never Have Enough Information

In case you don’t normally read the EXAIR blog, the general consensus among all the engineers here is that you can never have enough information.  To ensure that we pass on as much information as possible to our customers we have added even more to our website.  This time, we have given a vast amount of information on our Atomizing Spray Nozzles.

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All of the information can be found on the page shown below.

droplet size

This information will allow you to easier select the appropriate Atomizing Spray Nozzle for the application.  Whether it is spraying a liquid coolant onto a drill press to help cool and lubricate the operation or painting parts, the information is there to help better assist you the customer.

Take a look at the new page and if there is anything that you don’t see there, let us know.  We may still have it in our files, if not, maybe we can get it for you fast.

Brian Farno
Application Engineer
BrianFarno@EXAIR.com
@EXAIR_BF

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