The mechanical pressure switch is purely mechanical deformation that causes the action of the micro switch. When the pressure increases, the different sensing pressure components (diaphragm, bellows, piston) will be deformed and will move upward. Through the mechanical structure such as the railing spring, the uppermost micro switch will be activated to output the electrical signal. This is the principle of the pressure switch switch.

Selection knowledge of mechanical pressure switch:
The first one is explosion-proof. Generally, when selecting a model, you will ask whether it is explosion-proof or ordinary. The mechanical pressure switch uses a strong sealed shell to seal the wiring contacts in a solid space to achieve the effect of explosion-proof. Its working principle In order to use purely mechanical deformation to cause micro-controller action.
The second is to determine whether instructions are needed according to the actual situation: follow the customer's instructions to complete.
The third selects the number of contacts: one contact (one output) or two contacts (two outputs).
The determination of the fourth setting value and pressure range is also a very important part of choosing a pressure switch. The general range is between 20% and 80%.
The fifth is that if the switching difference is adjustable or not, you will be asked, and the price of the adjustable and non-adjustable is also different.
Well, the editor will introduce the above five points. Under normal circumstances, in the case of mechanical pressure switch selection consultation, it should be enough to have these five points.