Vacuum to Low-Pressure

Vacuum to Low-Pressure Switches

Vacuum-to-low-pressure switches are precision control devices designed to monitor pressure levels below atmospheric pressure or within low positive pressure ranges. These switches activate or deactivate an electrical circuit when a defined vacuum or low-pressure threshold is reached, making them essential for applications requiring sensitive pressure detection and system response at minimal pressures. They use diaphragms to sense pressure changes and are available with adjustable setpoints for tuning to specific operational needs.

In industrial settings, these switches are critical for maintaining safe and efficient operation in systems that rely on vacuum or low-pressure conditions. Their ability to detect small deviations from the setpoint allows for early response to leaks, blockages, or system failures, helping to protect equipment and maintain process integrity. Their compact mechanical design, high repeatability, and compatibility with clean air, gases, and select fluids make them ideal for low-pressure applications.

Vacuum to low-pressure switches are constructed with materials suited to the demands of the process environment, including corrosion-resistant housings and diaphragm materials. Many models are offered with weatherproof or explosion-proof enclosures for use in hazardous or outdoor locations. These switches operate reliably over wide temperature ranges and are available in normally open or normally closed configurations.

Common applications include vacuum pump monitoring, filter condition indication, leak detection, low-pressure pneumatic systems, and air handling equipment. Industries such as semiconductor manufacturing, HVAC, food processing, water treatment, and medical device production rely on these switches for sensitive, reliable pressure monitoring and control at sub-atmospheric or low-pressure levels.