A pressure switch is a type of switch that is used to detect the pressure of a fluid in a piping system or vessel. It is typically used to control a system based on the pressure of the fluid, such as turning on or off a pump or activating an alarm when the pressure exceeds a certain set point.
Pressure switches work by sensing the pressure of the fluid in the system and triggering an electrical signal when the pressure exceeds a certain set point. They are typically designed with a spring-loaded diaphragm or piston that responds to changes in pressure, and can be configured to operate in a variety of pressure ranges and with different electrical ratings.
Pressure switches are commonly used in a variety of industrial and commercial applications, including HVAC systems, refrigeration systems, hydraulic and pneumatic systems, and water and wastewater treatment systems. They are also used in safety applications, such as detecting high or low pressure conditions in a system and triggering an alarm or safety shutdown.
Pressure switches are available in a variety of styles and configurations, including electromechanical, solid-state, and digital switches. They can also include a range of additional features, such as adjustable set points, adjustable hysteresis, and built-in pressure gauges.
Overall, pressure switches are an important tool for monitoring and controlling fluid pressure in a variety of systems, helping to maintain the safe and efficient operation of the system. They are available in a variety of styles and configurations to suit the specific needs of a particular application