A better way to spray… every ultrasonic nozzle operates at a specific resonant frequency, which dictates the median droplet size. The nozzle is fabricated from a very high-strength titanium alloy and 316 stainless steel, making it exceptionally resistant to chemical attack and providing superior acoustical properties. The electrically active elements are contained within a sealed housing that protects the piezoelectric transducers, electrodes, and connecting wires from external contamination. Chemically impervious o-rings assure the integrity of the seal. To learn more about how ultrasonic nozzles atomize liquids, go to http://www.sono-tek.com/ultrasonic-nozzle-technology/
The liquid feed tube that runs the entire length of the nozzle is an integral part of the front titanium horn. Thus, the liquid only comes into contact with titanium within the nozzle. Typically, the nozzle is supplied with a 316 stainless steel compression fitting mounted on the rear of the liquid feed tube, which is mated to appropriate polymeric tubing.
The nozzle shown above features a cone-shaped atomizing surface. Its purpose is to spread out the spray. Some applications require that the spray be very narrow. In those cases, the atomizing surface is sculptured into a flat or nearly-flat surface. Depending on the width requirements of the spray pattern and the required flow rate, the atomizing surface may have a very small diameter or an extended, flat section.
The illustration on the far left in the diagram to the left indicates a cone-shaped spray pattern resulting from the conically shaped atomizing surface. Typically, spray envelope diameters from 2-3 inches can be achieved.
The center illustration is characteristic of Sono-Tek MicroSpray™ nozzles. For this type of nozzle, the orifice size ranges from 0.015-0.040 inches. It is usually recommended for use in applications where flow rates are very low and narrow spray patterns are needed.
The illustration on the right depicts a cylindrical spray shape used in applications where the flow rate can be relatively high, but where the lateral extent of the spray pattern must be limited.