Working principle of yk pressure switch

The working principle of the controller is that when the pressure in the system is higher or lower than the safe pressure, the pressure sensor in the controller acts immediately.

Turn on or turn off the microswitch in the controller, and the equipment stops working at this time; When the pressure in the system returns to the safe pressure range of the equipment, the pressure sensor in the controller is immediately reset, and the microswitch in the controller is turned on or off, and the equipment works normally at this time.

YK pressure switch is an internationally advanced miniature pressure switch, which is widely used in refrigeration units and various air conditioners. It uses butterfly-shaped metal diaphragm as sensitive element. When the pressure of the controlled medium rises to a certain set value, the butterfly metal diaphragm will jump unsteadily.

By pushing the ejector pin, the switch contact is opened (or closed). When the pressure of the controlled medium drops to another set value, the butterfly-shaped metal diaphragm will suddenly jump back to its original state, so that the switch contact will be turned off (or turned on), thus realizing pressure control.