This component is a critical control device in pneumatic systems, specifically designed to regulate the operational pressure within a compressed air tank. It functions by automatically starting and stopping the compressor motor based on pre-set pressure thresholds, ensuring the system operates within a defined range. For example, a unit may be configured to initiate the compressor when the tank pressure drops to 120 pounds per square inch (psi) and halt operation upon reaching 150 psi.
The reliable operation of this device is essential for maintaining consistent air pressure for various applications, ranging from powering pneumatic tools to operating automated machinery. Accurate pressure regulation prevents over-pressurization, which could lead to equipment damage or safety hazards, and ensures sufficient pressure is available for optimal tool performance. Early pneumatic systems relied on manual control, making this automated switch a significant advancement in efficiency and safety.