Pressure switches are used to monitor system pressure and initiate an electrical response when a preset pressure threshold is reached. These devices are commonly found in commercial and industrial HVAC equipment, air compressors, pumping equipment, and water systems.
DAC Worldwide’s Commercial-Type Pressure Switch Dissectible (272-982) is a realistic industrial component designed for hands-on training in pressure-switch construction, operation, adjustment, inspection, and maintenance.
The pressure switch converts a change in fluid or air pressure into an electrical switching action. Depending on the component supplied, pressure may act on a diaphragm, bellows, or piston mechanism that operates one or more electrical contacts.
The dissectible allows learners to examine the relationship between the pressure-sensing mechanism, adjustment springs, linkage, electrical contacts, terminals, and enclosure. The component can be disassembled using common tools for closer inspection and maintenance training.
Learners can study how cut-in and cut-out settings control connected equipment. They can also explore the role of pressure switches in starting and stopping compressors or pumps, controlling HVAC equipment, and activating alarms or safety circuits.
Actual commercial or industrial pressure switches from recognized manufacturers are selected to provide experience with components similar to those encountered in the workplace. The sample is cleaned and prepared for repeated classroom and laboratory use.
Photographs are representative. Product appearance, internal components, pressure range, electrical ratings, and dimensions may vary according to component manufacturer and availability.
