There are many types of air pressure switches. According to different classification standards, there can be the following main types:
1. Classification by control method
Pneumatic control switch: a switch device that uses an air source for control, suitable for occasions where the air pressure control is relatively stable.
There are two basic types of pneumatic control switches: a one-way control switch and a two-way control switch. A one-way control switch can only control one-way airflow, while a two-way control switch can control two-way airflow.
Mechanical control switch: a switch device that controls the change of air pressure signal through mechanical force. Common mechanical control switches include ball type, spring type, diaphragm type, diaphragm spring type and other types. Mechanical control switches are suitable for occasions where the air pressure changes greatly.
Electronic control switch: a switch device that uses electronic components to control the change of air pressure signal. Common electronic control switches include diode type, transistor type, field effect tube type and other types.
Electronic control switches are suitable for occasions where the air pressure changes less.
2. Classification by functional characteristics
Proportional air pressure control switch: a switch that can be controlled according to the proportional relationship of air pressure. Suitable for occasions where the air pressure ratio needs to be accurately controlled.
Pressure difference control switch: controls the on and off of the switch by detecting the difference between two air pressure values. Suitable for occasions where the air pressure difference needs to be detected.
3. Classification by application field
Industrial air pressure switch: designed for air pressure control in industrial environments, usually with high reliability and durability. Widely used in automated production lines, mechanical equipment and other fields.
Household air pressure switch: designed for air pressure control in home environments, usually with small size and low cost. Commonly used in household appliances such as gas water heaters and wall-mounted boilers.
4. Other classification methods
In addition to the above classification methods, air pressure switches can also be classified according to other characteristics, such as:
Normally open and normally closed: classified according to the on and off state of the switch under normal conditions.
Adjustable and fixed: classified according to whether the set value of the switch is adjustable.
