Comfort pressure sprayer and splitting in pressure nozzles (drop, filament, and film). However, pressure nozzles used in industrial production are usually operated under film-like (hollow cone) split conditions. The thickness of the liquid film formed by the pressure nozzle is approximately 0.5 to 4 μm. In industrial spray granulators, the liquid film length during nozzle operation is difficult to see directly. Because of the high jet velocity and turbulence caused by the low viscosity liquid during atomization, the resulting liquid film is very short. When the viscosity is increased, the liquid film becomes longer; when the surface tension is increased, the liquid film becomes shorter. The internal structure of the pressure nozzle should be able to split the liquid with minimal external disturbance during the process of forming the conical film