Rõhulülitid

Rõhulülitid, known in English as pressure switches, are electromechanical devices that detect and respond to changes in pressure. They are used to control a variety of systems and equipment by opening or closing an electrical circuit when a predetermined pressure level is reached. A common design involves a diaphragm or a piston that moves in response to pressure. This movement is mechanically linked to a set of electrical contacts. As the pressure increases or decreases, the diaphragm or piston actuates the contacts, thereby switching the electrical circuit on or off.

Rõhulülitid are found in numerous applications. In domestic settings, they are crucial components in heating and hot water systems, regulating boiler operation and pump activation. They are also used in water pressure systems for wells, ensuring a consistent water supply. In industrial environments, these switches are vital for monitoring and controlling processes involving liquids and gases. They can be found in hydraulic and pneumatic systems, where they manage actuator movements and protect equipment from overpressure or underpressure conditions. Automotive applications include their use in controlling oil pressure warning lights and activating turbochargers.

The selection of a rõhulüliti depends on several factors, including the type of fluid or gas, the pressure range to be monitored, the required accuracy, and the electrical switching capacity. Different types of rõhulülitid are available, such as adjustable and fixed setpoint models, as well as those designed for specific environmental conditions like high temperatures or corrosive media. Their reliability and relatively simple operation make them a ubiquitous and essential control component in modern technology.