Use:

These switches are mainly used in high/low pressure protection control for the refrigerating system of household, commercial and automobile as well as for various kinds of equipments and tools.

Characteristics:

Adopting BSP screw quick connector or brass pipe-welded structure, they are flexible to be mounted and easy to be used without special installation and fixation.

The insert-style and wire-connected styles are available for choice.

Single-pole-single-throw or single-pole-double-throw, normal open or normal-close contacts of switch are available for choice.

Airtight stainless steel sensor is safe and reliable.

Any pressure within the range of3-650PST (0.02-4.5MPa) can be selected to customize according to customer’s choice.

Working Principle：

When the pressure inside the system is over or below the related safe pressure the disc in the sensor will start to move instantly, and this works together with the connecting rod and pushes the switch connector to open or close. When pressure reduces or rises to the rated point, the disc will be reset and switch will be reset automatically.