Pressure Switches Manufacturers

Pressure Switch is a device that senses pressure and changes state at the programmed or adjust point. This closes or opens a set of electrical contacts when a given amount of pressure is exerted on the switch diaphragm. This can be adjustable or non-adjustable and dual pressure is available. The pressure switch closes at a pressure level called the cut-in pressure and opens at a pressure known as the cut out pressure. The cut out pressure determines the lower temperature limit. To set the uppermost temperature limit, the cut-in pressure must also be determined. The difference between the cut-in and cut-out pressure of the switch is differential. This is used as refrigeration system's operating control as a safety device, or to operate a certain part of the total system. Some pressure switches are equipped with a manual reset button that locks in the open position. This is used in both commercial and residential switches.