Pressure switches are widely used in industry to automatically supervise and control systems that use pressurized fluids.
Pressure limit switch definition.
A pressure switch is very important little device that enables the safety and control of many different environments.
They are used for control of a machine as safety interlocks or to count objects passing a point.
Typically these switches are electromechanically operated so they activate when an object makes physical contact with the actuator which is often adjustable.
On some air conditioners or heat pumps this switch is manually reset.
The ratings will vary depending on the type of refrigerant the air conditioner or heat pump uses the system.
The switch may be designed to make contact either on pressure rise or on pressure fall.
Limit switch is a switch operated by the motion of a machine part or presence of an object.
Designed for high pressure applications these switches electrically activate automated controls or alarms when a set pressure is reached.
High pressure refrigeration pressure switches the high pressure switch will kill the compressor circuit if the pressure exceeds the rating on the pressure switch.
Pressure switches energize or de energize electrical circuits as a function of whether the process pressure is normal or abnormal.
Switches are single pole double throw spdt so they switch one circuit on or off.
They can be wired normally open no or normally closed nc.
Standardized limit switches are industrial control components manufactured with a variety of operator types including lever roller plunger and whisker type.
Mechanical limit switches are a common presence or position sensing device used in industrial automation systems.
This is a device designed to monitor a process pressure and provide an output when a set pressure setpoint is reached.
A pressure switch does this by applying the process pressure to a diaphragm or piston to generate a force which is compared to that of a pre compressed range spring.
They are often used in pump and hydraulic power applications.
