In this video, I will show you how to refurbish a 1/4″ NPT No-Drip Atomizing Nozzles with the RBK20 Rebuild Kit.
If you have any questions, you can contact an Application Engineer at 800-903-9247.
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:
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.
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.
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.