EXAIR Internal Mix Atomizing Nozzles: Overview

Internal Mix Atomizing Spray Nozzles are the perfect choice for fine mist and precise control.

In today’s market, the cost of consumable products are on the rise; especially with paints, oils, and yes, even the cost of water.  You can help ease some of that cost by being more effective in spraying with less liquid.  The EXAIR Atomizing Nozzles  can accomplish these objectives.  By using compressed air to shear the liquid, small micron-sized droplets are produced.  As a reference, reducing the area of a particle by one-half will multiply the number of droplets by eight.  With smaller diameter particles, it will increase the surface area and the coverage; thus, requiring less liquid in your application.

In addition, with a variety of spray patterns, you can accurately target the liquid without having excess spillage around the product.  EXAIR manufactures three families of Atomizing Nozzles; Internal Mix, External Mix, and Siphon Fed.  In this blog, I will be discussing the Internal Mix Atomizing Nozzles.

The Internal Mix Atomizing Nozzles are designed, like the name suggests, to atomize the liquid inside the nozzle.  This means that the liquid and air streams will come together just before leaving the Atomizing Nozzle.  For this type of Atomizing Nozzle, the air and liquid supply are pressurized and independently controlled.

The Internal Mix Atomizing Nozzle can spray fluids with a viscosity below 300 CPS (similar to SAE40 oil).  EXAIR manufactures these nozzles with stainless-steel construction; making them compatible with many different kinds of liquids.  And they are used in many applications like washing, coating, cooling, quenching, and dust control.

Atomizing Nozzle

EXAIR carries three different body sizes in 1/8” NPT, ¼” NPT, and ½” NPT inlet ports; so, you can create a light mist or a monsoon.  Each body size has different air caps and liquid caps to control the largest liquid flow rates.  This will allow you to have finer adjustments of your liquid spraying.  These caps are easily interchangeable to change the spray patterns, spray amounts, and to reduce downtime if cleaning is needed.

Other features for the Atomizing Nozzles are the mechanisms to precisely regulate the amount of liquid being sprayed.  The liquid adjusting stem can  control the liquid flow into the Atomizing Nozzle.  Along with inlet air pressure and liquid pressure, you can “dial in” the exact amount of fluid to end any waste or excess. They have a compact design to mount inside tight areas, and we carry mounting brackets for easy attachment and positioning.   Versatility is very important in saving, applying, and spraying costly fluids, and the Internal Mix Atomizing Nozzles have it.

No Drip Atomizing Family

To help reduce excess fluid even more, EXAIR has a No Drip option.  This patented option is used to keep the expensive liquid from dripping out of the Atomizing Nozzles during off cycles.  A valve inside the body will create a seal on the liquid side when you turn off the compressed air.  For delicate and sensitive applications, the unwanted drips will not occur with the No Drip option to ruin the finish of your product. This option also enhances the Internal Mix Atomizing Nozzle for intermittent spraying processes.  It will keep the liquid inside the body of the nozzle; so, when you apply air pressure, the Atomizing Nozzle will give an instant spray.

Unlike some manufacturers, there is no need to run a separate compressed air line or have a liquid solenoid valve to stop the dripping.  The Internal Mix Atomizing Nozzles with the No Drip options can give you the best performance in efficiency, effectiveness, and flexibility without any drips.

If you need to maximize the liquid dispersion and reduce consumption, the EXAIR Atomizing Nozzles are the products to use.  The Internal Mix Atomizing Nozzles can shear the drops into micron-sized particles, saving expensive consumable oils and liquids.  If you have a spraying application, an Application Engineer at EXAIR can help you to decide the correct model.

John Ball
Application Engineer
Email: johnball@exair.com
Twitter: @EXAIR_jb

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