What device in the aerial application system is responsible for maintaining pressure?

The pressure regulator is an essential component in an aerial application system that ensures consistent pressure is maintained within the system. This is critical for the effective and accurate delivery of pesticides or fertilizers during aerial spraying. A properly functioning pressure regulator adjusts the flow of liquid to keep the pressure at optimal levels, regardless of variations in the system, such as changes in altitude or variations in the speed of application.

Maintaining the appropriate pressure is crucial because it influences the droplet size of the spray, which affects coverage and the potential for drift. If the pressure is too low, the droplets may be larger, leading to poor coverage and increased potential for runoff. Conversely, if the pressure is too high, the droplets may be too fine, which can result in excessive drift and loss of material to unintended areas. Therefore, the pressure regulator plays a vital role in optimizing the performance of the aerial application system.

For further context, while a flow meter measures the amount of liquid being dispensed, and a check valve prevents backflow to ensure that the system operates safely, they do not control the pressure itself. Similarly, spray tips are designed to influence droplet formation and distribution but are not responsible for maintaining pressure within the system.