The basic principle of this nozzle is equivalent to the Laval nozzle. This twin-fluid nozzle atomizes fluids as fine full cone. In doing so, a two-phase mixture is generated on the inside of the nozzle from atomizing air and fluid (e.g. lime milk). The other formation of the nozzle has the effect that this mixture is accelerated which leads to an extremely fine atomization of the droplets. Due to the ring gap air, the coarse droplets on the edge area of the spray jet is atomized to fine droplets by a secondary atomization.
By changing the air / liquid ratio, the droplet size or the droplet spectrum can be adjusted in a larger area.
The large free cross-section of the nozzle also permits the atomization of viscous fluids or fluids loaded with solid matters. The correct material selection reduces wear, also with abrasive media and permits use at higher temperatures.