What is the function of sprayer control valves?

• A. Regulate flow of liquid
• B. Filter impurities from spray
• C. Calibrate droplet size for all nozzle types
• D. Remove air from system

Answer: (A)

Sprayer control valves regulate the flow of liquid through the system. By adjusting the valve, you open or close the passage to the nozzles, which sets how much solution moves per unit time and helps control the overall application rate and system pressure. This is the core role of the valve itself.

Filtering impurities is the job of filters placed in the line, not the valve. Calibrating droplet size depends mainly on the nozzle design and the operating pressure, not on the valve’s flow-setting alone. Removing air from the system is handled by priming and venting components, not by the control valve. So the valve’s primary function is to regulate how much liquid flows through the sprayer.