In pesticide spraying, the application of foam nozzles enables pesticides to act on crop leaves with smaller droplets and higher coverage, improving the control effect, and reducing pesticide loss and environmental pollution. The foam extinguishing system uses foam nozzle to mix water and foam agent and spray them out, forming a foam layer with strong coverage, effectively isolating air and rapidly reducing the temperature of combustibles, which is an important means of extinguishing oil, chemical and other fires.

The core of foam nozzle is the design of its internal structure. It uses Venturi effect or mechanical agitation to mix liquid (such as cleaning agent, fire extinguishing agent, pesticide, etc.) with air and fully refine it to form a large number of tiny bubbles. These bubbles are evenly distributed in the liquid, forming a lightweight, volume expanding foam. This conversion not only increases the surface area of the liquid, but also enhances its adhesion and permeability, enabling it to act more effectively on the target surface.