Whirl Spray Nozzles

Whirl nozzles generate a whirling motion of the liquid. Axial whirl nozzles produce the swirling motion with an internal vane or disc. Tangential whirl nozzles feature a slight angle on inlet passageway into the cavity of the nozzle. The swirling effect within the body cavity creates the whirling motion.

BETE has decades of experience designing and manufacturing nozzles. If you can’t find a whirl nozzle that works for your needs, we can custom engineer one for you — it’s what we do.


What BETE nozzles are considered Whirl?

Whirl Nozzle Design Specifications and Frequently Asked Questions

  • Axial
    • Full Cone
      • Even distribution of the droplets.
      • Internal Whirl vane/disc to help create the spray pattern.
      • Inlet inline with outlet.
    • Hollow Cone
      • Internal Whirl vane/disc to help create the spray pattern.
      • Inlet inline with outlet.
  • Tangential
    • Full Cone
      • Even distribution of the droplets.
      • Slight angle on inlet passageway into the cavity of the nozzle to create the swirling effect within the body cavity, thus resulting in the creation of the spray pattern.
      • Liquid inlet 90 degrees from liquid outlet.
      • Fins on one side of the body cavity to disrupt the swirling action to help direct droplets to the center of the spray pattern.
    • Hollow Cone
      • Slight angle on inlet passageway into the cavity of the nozzle to create the swirling effect within the body cavity thus resulting in the creation of the spray pattern.
      • Liquid inlet 90 degrees from liquid outlet.
  • A full cone whirl nozzle has the most even distribution of droplets.
  • A hollow cone whirl nozzle typically creates smaller droplets as compared to full cone versions.

Dependent on operating conditions, hollow cones typically produce smaller droplets than full cone versions.

Typical operating pressures are on the low end, mostly between 3-80 psi delta P (depending on nozzle series and rating).

Flow rates are variable and depend on the type of application.

  • The Axial Whirl full cone nozzle style is ideal if you need an even distribution over a packed bed.
    • If you have minimal room above the packed bed, a Tangential Whirl full cone nozzle might be a better choice.
  • If you looking at even distribution over a specific surface area such as in Rain Simulation and Foam Control Applications, the Axial Whirl full cone nozzles is, once again, an excellent choice.
    • If you have minimal room above the surface, a tangential whirl full cone nozzles may be a better option.
  • If you have venturi scrubbers, you may have the best results with a narrow angle Axial Whirl full cone or narrow angle Axial Whirl hollow cone nozzle.
    • The necessity of Hollow VS Full, such as NCK and NCJ Series, is usually based on the actual designer of the scrubber.
  • The two MaxiPass nozzles are designed with an S vane for larger free passage; the other Full Cones Series utilize a disc that have smaller areas that could trap particulates that are in the fluid.
  • Unlike standard whirl nozzles, spillback nozzles provides a 10:1 turndown ratio with minimal change in drop size.

Not sure which type of BETE Whirl Nozzle is for you? Our experienced engineers and staff can help you determine which nozzle in our vast inventory will work the best for your specific application, or custom design one to solve a challenging spraying process problem — creatively and effectively.