For demanding applications 
High capacity and constant spray pattern 

SCHLICK hollow-cone nozzles atomise pressurised liquids into very fine droplets and thereby provide a large specific surface. The normal spray angle is achieved by bore diameters of

0.1 – 0.5 mm approx. 60°

0.5 – 1.6 mm approx. 70°

1.6 – 20 mm approx. 78°

from 21 mm approx. 80° – 85°

For spray angles smaller or larger than the normal spray angle the nozzle is fitted with a smaller or larger exit hole than that shown in the table. Each air flow rate corresponds to the nominal bore hole. In the same way, the total height of the nozzle can change. A differential pressure at 3 bar is chosen for testing and nominal pressure.

Even hollow cone even with fluctuating liquid pressure
The quality of the atomised spray and the droplet spectrum are related to the diameter of the hole, the pressure, the scatter cone, the density, the viscosity, and the surface tension. 

Minimum atomising pressure
0.1 – 0.5 mm Ø: differential pressure = 3 – 6 bar
0.5 – 1.6 mm Ø: differential pressure = 0.5 bar
ab 1.6 mm Ø: differential pressure = 0.1 – 0.5 bar

Droplet size with the same bore hole size
higher pressure = smaller droplets
lower pressure = larger droplets

Droplet size with the same pressure
larger bore hole = larger droplets
smaller bore hole = smaller droplets
d_T ~ Ø

Droplet size with the same bore hole size and the same pressure
larger spray angle = smaller droplets
smaller spray angle = larger droplets
d_T ~ 1/spray angle

Liquids with higher viscosities and surface areas must be tested for their atomisation with hollow cone nozzles. Compared to water, the fineness of the atomisation is generally coarser.

Materials: Acid-resistant stainless steel, heat-resistant stainless steel, brass, hastelloy, inconel, PP, PTFE, PVC, PVDF, RCH 1000, tantalum, titanium, other materials available on request.