Want to learn more about EXAIR’s line of Atomizing Spray Nozzles? This short video will familiarize you with their benefits, features, and capabilities.
EXAIR’s Atomizing Nozzles are commonly used to clean, cool or coat parts as well as humidification or to control dust. They are constructed of 303ss, providing superior corrosion resistance and are able to withstand temperature up to 400°F (204°C).
For today’s topic, we will focus on the No Drip External Mix Atomizing Nozzles.
The External Mix Atomizing Spray Nozzles require a pressurized liquid source and compressed air source to produce a mist of atomized liquid. With the liquid and air being mixed external to the nozzle, they are able to handle higher viscosity fluids above 300 cP.
Our patented No Drip feature positively stops the liquid flow when the supply air pressure drops below 20 PSIG for 1/8″ NPT Nozzles or 30 PSIG for the 1/4″ or 1/2″ NPT. By incorporating this feature into the design, it eliminates the need for any additional valves or supply lines.
Available flow rates range from 2 GPH for our Model # EF9010SS 1/8″ No Drip External Mix Narrow Angle Flat Fan Pattern and up to 303 GPH for the Model # EF6010SS 1/2″ No Drip External Mix Narrow Angle Flat Fan Pattern.
When making a selection, there are 5 common considerations to take into account:
- How much liquid flow do I need?
- Is the liquid pressurized?
- What is the viscosity of the liquid?
- How wide of an area needs to be treated?
- What type of spray pattern fits the application?
If you have an application requiring a fine mist of atomized liquid or if you’d like to discuss another product or application, contact one of our application engineers for assistance.
Eliminate drips to conserve valuable liquids and improve product finishes! EXAIR’s patented No Drip Atomizing Nozzle provides the same great performance as the the standard atomizing nozzles with the added benefit of positive liquid flow stoppage when the compressed air is shut off.
The No Drip option eliminates the occurrence of post spray liquid flow that results in unwanted drips that can mar a finish on painted or coated surfaces. Also, excess liquid loss is minimized saving on expensive materials like chemicals or coatings. When the compressed air is shut-off, the No Drip nozzle positively seals off the flow, eliminating the chance for a drip or lost liquid. Only one compressed air line is needed, as the line to combine and atomize the liquid also provides the no drip operation and control.
The Internal Mix type operates under the principle that the air and liquid come together and mix ‘internal’ to the nozzle. This type provides the finest atomization and smallest droplet size. The Internal Mix type of nozzle can be used with liquids up to 300 cP in viscosity. Both the air and liquid sides are pressure fed. The No drip Internal Mix Atomizing Nozzles are best for pressure fed applications not requiring independent air and liquid control.
The No Drip Atomizing Nozzles are available in (3) sizes – 1/8, 1/4, and 1/2 NPT – to provide a wide range of flow rates and pattern sizes. The No Drip feature does not impact the flow rates compared to the standard models. Minimum air pressure operation is 30 PSIG for the 1/4 and 1/2 NPT, and just 20 PSIG for the 1/8 NPT models.
Like the standard Internal Mix Atomizing Nozzles, spray patterns include narrow and wide angle round, flat fan, deflected flat fan and a 360° hollow circular pattern offering a wide selection to best meet the application needs.
Operation at up to 180 spray cycles per minute is possible. Air and Liquid Caps can be switched out to change the pattern and flow rates.
- Dust Control
- No post spray drip
- Easily used with EFC
- Minimizes air and liquid consumption
- All stainless steel construction
- Fine atomization
- Interchangeable liquid and air caps
If you need an Atomizing Spray Nozzle or any of the EXAIR Intelligent Compressed Air® Products, feel free to contact EXAIR and myself or one of our Application Engineers can help you determine the best solution.
There is rarely a day that goes by that I don’t receive a call from someone who has a need for a compressed air product and when I state the SCFM requirements of the device they respond back with the psi rating of their air compressor. Many technicians simply do not understand the difference between the two. Simply put psi (pounds square inch) is force and CFM (cubic feet per minute) is flow.
A simple illustration would be to contrast a 12 VDC powered air compressor that many people carry in their trunks to inflate car tires. They will inflate your car tire to 35 psi in a matter of minutes. While the air compressor at a tire shop can inflate a car tire in a minute or less. What is the difference?
Simply put, the flow. Both inflate the tire to the desired pressure but the one with largest flow (volume) does it much faster. In the case of a compressed air product such as an air nozzle, the pressure required to operate is only one part of what is necessary to operate the device effectively, you need to have enough flow or CFM.
Let us now consider an EXAIR 1100 Super Air Nozzle, its rated performance of 13 ounces of force at 12″ distance from the nozzle is derived from supplying 14 SCFM @ 80 psi. The typical home use air compressor that runs on 110 VAC (Generally 2 HP maximum) will not generate the flow (volume /CFM) at 80 psi to run the nozzle at peak force, just as it would not generate enough flow to fill the tire as quickly as the industrial compressor at a tire shop.
When an open tube, pipe or inefficient nozzle is placed at the end of an air line to provide blow off for cooling or cleaning it demands much greater volume from the compressor. If the compressor cannot keep up the force (pressure) of the system will decline. Replacing an open tube or pipe with an EXAIR engineered nozzle will require less compressed air volume which, in turn, will give the compressor more ability to provide full pressure and force upon your application.
If you would like to discuss air consumption of any of EXAIR’s engineered solutions, I would enjoy hearing from you…give me a call.
12 VDC Tire Inflator Image courtesy of Moto Service Dinamarca
Do you ever need to spray a liquid? If so lets look at two of EXAIR’s Atomizing Spray Nozzles or ASN for short. The first model we will discuss is the AD1010SS Internal Mix Deflected Flat Fan Pattern.
To begin with all EXAIR ASN’s are made from SS for durability and liquid compatibility. As its name implies it creates a flat fan pattern that exit’s the nozzle perpendicular to the air & liquid inlets as shown above. This unique design lends itself nicely to applications with space constraints. The AD1010SS is the ideal choice for coating the inside of enclosures or ductwork. It is compatible with liquids up to 300 centipoise and the air and liquid are mixed in the air cap. The AD1010SS is designed for pressure fed applications not requiring independent air and liquid control. What is meant by that statement is that if you vary either the air or liquid pressures you change the spray pattern and volume. See the chart below for clarification on pressures, volumes and spray patterns.
The AT1010SS internal mix 360° nozzle is designed for applications where the spray pattern must be oriented away from the nozzle in all directions. 360° nozzles are ideal where a smooth, even coating is needed on the ID of a pipe or similar ductwork. It is compatible with liquids up to 300 centipoise and the air and liquid are mixed in the air cap. The AT1010SS is designed for pressure fed applications not requiring independent air and liquid control. As above if you vary either the air or liquid pressures you change the spray pattern and volume. See the chart below for clarification on pressures, volumes and spray patterns. They also work great for operations where a mist over a broad area is needed, such as dust suppression, humidification and cooling. See the chart below for clarification on pressures, volumes and spray patterns.
Not long ago while checking out of a motel my laptop bag that was attached to the handle on my suitcase fell forward and the impact shattered the screen on the laptop. Upon turning the computer on I realized that a new screen was in order.
I waited until I arrived at home and found what I thought to be the correct monitor and quickly ordered it. It arrived two days later and I painstakingly took the laptop apart and exposed the mounting frame. The removal of the broken screen and the installation of the new was not too difficult but the cable connector was less than robust and was very tight. Carefully I worked it back and forth and it came free.
Installation and reassembly went quickly and then I powered up the machine. I was only greeted with a series of very loud and annoying beeps. At that point I shut it down and called the company I purchased the screen from and described the issue. They determined that the resolution of the screen was incorrect for my laptop and that I needed a different model. They said I could return the incorrect one and upon inspection receive a credit less the return shipping. At that point I ordered the correct screen and packaged up the wrong one and dropped it off at the parcel delivery service.
The new model arrived and it installed easily and worked perfectly. I waited patiently and never did see a refund so I called the company and they said that it was an oversight on their end and that it would be corrected within 48 hours. Sure enough they issued the credit and money was credited back to my account with one exception, the 40% restocking fee!
I can tell you that EXAIR is not that way! If you order the wrong item or are not satisfied for any reason and the item was purchased within the last 30 days we will facilitate the return and ZERO restocking fee. There are a multitude of reasons our customers would want to take advantage of our 30 day guarantee and we make it a simple transaction if you need to take advantage of it too. Testing is one reason a customer would use this 30 days, other customers may have ordered incorrectly or released product inadvertently, they may have wanted a small sample for a meeting or demonstration at a customers location.