What are relief valves and pressure unloaders considered to be?

Relief valves and pressure unloaders are categorized as pressure regulators because their primary function is to maintain and control the pressure within a system. They ensure that pressure does not exceed a certain threshold, which is crucial for the safe and efficient operation of irrigation systems, spray equipment, and other agricultural machinery. By regulating the pressure, these components help maintain optimal performance, preventing damage to the equipment and ensuring that the application of water or pesticides is delivered at the correct pressure for effective distribution.

Pressure sensors measure the pressure within a system but do not actively manage it, while flow meters quantify the amount of fluid flowing through a system. Hose connectors facilitate the attachment of hoses but do not influence pressure. Thus, their specific function of managing pressure makes relief valves and pressure unloaders distinctly recognizable as pressure regulators.