rõhulülitisega

Rõhulüliti is an Estonian term that translates to "pressure switch" in English. A pressure switch is an electrical device that is activated when a certain pressure is reached. It typically has two states: open and closed. In its default state, it is either open or closed, and when the pressure reaches a predetermined setpoint, the switch changes its state. This change in state can then be used to control other electrical devices or systems.

Pressure switches are used in a wide variety of applications. They are commonly found in domestic water systems, where they turn on a pump when the water pressure drops and turn it off when the desired pressure is reached. In industrial settings, they are used to monitor and control pressure in pipelines, tanks, and machinery. They can also be found in automotive systems, for instance, to control the operation of the radiator fan based on coolant pressure.

There are several types of pressure switches, including diaphragm, piston, and bellows types, each suited for different pressure ranges and environments. The operation relies on the mechanical force exerted by the pressure acting upon a sensing element, which in turn actuates an electrical contact. The setpoint at which the switch operates can often be adjusted. Pressure switches are a crucial component in many automated systems, providing a simple yet effective method for pressure-based control and safety interlocks.