Differential Pressure Switch – Mechanical SPDT Air Pressure Controller
A reliable mechanical differential pressure switch designed for low-pressure air monitoring, featuring adjustable setpoints and SPDT switching output. Ideal for HVAC systems, filter monitoring, airflow detection, and industrial air pressure control.
The Differential Pressure Switch is a mechanical control device used to monitor and respond to pressure differences between two points, typically in air and gas systems. It is widely used in HVAC systems, ventilation ducts, cleanrooms, and industrial airflow monitoring applications.
The switch operates by detecting changes in pressure and activating an internal SPDT (Single Pole Double Throw) contact, allowing it to trigger alarms, control fans, or switch equipment on/off when preset thresholds are reached.
With an adjustable pressure range, the unit allows users to set specific activation points, making it suitable for applications such as filter blockage detection, fan status monitoring, airflow verification, and pressure control systems.
The mechanical design ensures simple operation, high reliability, and long service life, without the need for complex electronics. Its robust housing provides dust resistance and durability, making it suitable for industrial environments.
This device is ideal for low-pressure air systems, particularly where reliable switching and easy installation are required.
Key Features
- Mechanical differential pressure switch for air systems
- Adjustable pressure setpoint
- SPDT switching output for flexible control
- Suitable for low-pressure applications (micro pressure range)
- Reliable mechanical operation with long service life
- Dust-resistant design for industrial environments
- Simple installation and configuration
- Ideal for HVAC, ventilation, and airflow monitoring