What determines the spray pattern, droplet size, and flow rate in a spray system?

The nozzle is the critical component that directly influences the spray pattern, droplet size, and flow rate in a spray system. Nozzles are designed with specific characteristics that dictate how the liquid pesticide will be atomized as it exits the nozzle.

Different types of nozzles can produce various spray patterns, such as a fine mist or a coarse droplet spray, which is essential for targeting specific types of vegetation or avoiding drift into non-target areas. The nozzle's orifice size also plays a crucial role in determining the flow rate, as a larger orifice will allow more liquid to pass through at a faster rate, while a smaller orifice restricts the flow, producing smaller droplets and altering the coverage area.

Additionally, the design and angle of the nozzle can influence the uniformity and coverage of the applied pesticide, making it essential for effective weed control. Understanding how nozzles work is fundamental for achieving the desired application performance and ensuring the effectiveness of the pesticide while minimizing unintended impacts.