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There are two main types of pressure switches: mechanical pressure switches and electronic pressure switches.

• Mechanical pressure switch

  Simple and robust, these switches are commonly used for less complex tasks. Mechanical pressure switches are triggered using a spring and a piston to control the pressure at which they are activated. The spring is the force opposing the inlet pressure, and its tension is adjusted via a set screw or knob. In turn, the spring pretension is directly related to the pressure at which an electric contact occurs. In the event of a drop in pressure, the switch resets to its original state. The mechanical pressure switch is better suited to handling high voltages and amperages compared to an electronic pressure switch. You can use them to increase or decrease pressure through a contact change.

• Electronic pressure switch

  Electronic pressure switches contain a pressure transducer, typically a strain gauge, and additional electronics that convert signals into readable output. An electronic pressure switch offers many advantages over a mechanical pressure switch. Some of the advantages include greater accuracy, less contact wear, excellent long-term stability, simple operation, and the ability to perform thousands of switching cycles.

If you would like to know the application, installation, use of these two pressure switches or their product information, please feel free to contact our sales specialists. We will provide you with professional products and services.