No Drip, External Mix, Atomizing Spray Nozzle Overview

 

No Drip ASN
EXAIR’s No Drip, External Mix, Atomizing Spray Nozzle In Action!

EXAIR’s Atomizing Spray Nozzles are used to clean, coat, or cool parts and they also lend themselves very well to humidification and dust control.  They are constructed from rugged and durable 303 SS to provide corrosion resistance and they can operate in temperatures up to 400°F (204°C). All EXAIR Atomizing Spray Nozzles are also CE compliant.

Atomizing Nozzles are separated into 5 categories – Internal Mix, External Mix and Siphon Fed, Deflected Flat Fan, and Internal Mix 360° Hollow Circular Pattern.  They are available in 1/8″, 1/4″ & 1/2″ NPT to make it easy to provide the coverage and flow rate you need for nearly any application.  For today’s focus, we will discuss the No Drip External Mix Atomizing Nozzles.

External Mix Atomizing Nozzles have the highest flow rates and are ideally suited where precise liquid flow is required and both the air and liquid are pressurized.  Also the External Mix Atomizing Spray Nozzles can easily atomize liquids with a viscosity above 300 cP (Centipoise).

Centipoise is defined as a dynamic viscosity measurement unit. A Centipoise (cP) is a non-SI (non-System International) measurement unit of dynamic viscosity in the centimeter gram second (CGS) system of units.

Centipoise Chart

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.  They are available in flow rates that range from less than 2 GPH (7.57 LPH) for our Model EF9010SS 1/8 NPT No Drip External Mix Narrow Angle Flat Fan Pattern and up to 303 GPH (1,147 LPH) for the Model EF6010SS 1/2 NPT No Drip External Mix Narrow Angle Flat Fan Pattern.

When making a selection, below are some points to consider:

  1. Volume of liquid required?
  2. What is the viscosity of the liquid?
  3. What type of spray pattern fits the application?

If you would like to discuss External Mix No Drip Air Nozzles or any of EXAIR’s safe, quiet & efficient compressed air products, I would enjoy hearing from you…give us a call.

Steve Harrison
Application Engineer
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Atomizing Spray Nozzles from EXAIR

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.

AD1010ss_pr_559w
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.

AD1010SS Pressures
AD1010SS Chart

Next we will look at EXAIR model AT1010SS internal mix 360° hollow circular pattern ASN.

AT360circpat_pr_300
AT1010SS 360° Circular Spray Pattern Nozzle Can Be Used To Coat Inside Diameters Or Cover A Broad Area Of Over 4′

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.

AT1010SS Chart
AT1010SS Chart

If you would like to discuss EXAIR’s Atomizing Spray Nozzles or any EXAIR compressed air product, I would enjoy hearing from you…give me a call.

Steve Harrison
Application Engineer

Send me an email
Find us on the Web 
Follow me on Twitter
Like us on Facebook