Compressed air is used to increase the atomization efficiency of these nozzles. A smaller droplet size for a given liquid flow rate can be obtained with the use of compressed air than can be obtained with nozzles that only use the pressure of the fluid.


Applications :


  • ❖ Atomizing of viscous liquids
  • ❖ Granulation
  • ❖ Humidification of air
  • ❖ Agglomeration
  • ❖ Tablet coating
  • ❖ Pallet coating
  • ❖ Cooling
  • ❖ Others

Internal Mix Air- Atomizing spray nozzles

In these types of spray nozzle air and liquid mix internally inside the cap and discharges from same orifice.


External Mix Air- Atomizing spray nozzles

In these types of spray nozzle air and liquid mix externally outside the cap from different orifice and discharges.


Air atomizing spray nozzles have following principle set-up.


1. Pressure Principle Set - up
2. Gravity Principle Set - up
3. Siphon Principle Set – up


1) Pressure Principle Set - up


Liquid supplies from pressure pump and for compressed air, compressor requires.



2) Gravity Principle Set – up


Liquid supplies from gravitational head (no need of pump) and for compressed air, compressor requires.



3) Siphon Principle Set - up


Liquid lifts at certain height (no need of pump) by the compressed air and for compressed air, compressor requires.