040-168

This professional-grade flow switch, also known as an air pressure or air proving switch, is a critical safety sensor used in a variety of heating and ventilation appliances. It is designed to detect the presence of adequate airflow within the system, ensuring that the blower motor is functional before the heating element or burner is activated. This prevents hazardous conditions such as overheating or the buildup of unvented gases. Built for reliability and precise switching, this component is a standard replacement part for residential and commercial HVAC maintenance, helping to restore efficiency and safety to your equipment.
Type: Air Pressure Switch / Air Proving Switch
Size: Standard
Application: Commonly utilized in furnaces, boilers, heat pumps, and industrial ventilation systems to monitor blower performance and exhaust pressure.
Specifications: Mechanical air pressure sensing, snap-action switching, designed for high-cycle durability and safety monitoring.