Description
The Dungs Pressure Switches 266954 Air Pressure Switch 0.4–3 MBAR is a differential pressure monitoring component used to detect very low air pressure levels in combustion air and ventilation control systems. It provides switching action when pressure changes reach the preset range, ensuring proper airflow verification before burner operation in HVAC systems . Installed in boilers, furnaces, and air handling equipment, it operates as a safety interlock for burner management systems by confirming adequate air movement. It is applied in commercial and industrial heating systems where precise low-pressure air sensing is required for safe and stable combustion control.
