Description
Dungs 266956 Air Pressure Switch Overview
The Dungs 266956 is a precision-engineered air pressure switch designed for demanding combustion and HVAC applications. With a wide adjustable pressure range of 2.5 to 50 mBar, this switch delivers reliable differential pressure monitoring and control in burner management systems, gas trains, and air-handling equipment. Its robust IP 54 ingress protection rating guards internal components against dust and water splash, making it well-suited for commercial and industrial environments.
Key Features
- Pressure range: 2.5 – 50 mBar (adjustable)
- Switch type: SPDT (Single Pole Double Throw) for versatile circuit integration
- Ingress protection: IP 54 — protected against dust and water splash
- Auto reset operation for simplified system recovery
- Positive pressure port: 1/4″ NPT connection
- Negative pressure port: 1/8″ NPT connection
- Designed for positive air pressure sensing applications
Application & Benefits
The Dungs 266956 is ideal for use in commercial burner systems, boiler air proving circuits, and combustion air monitoring. The SPDT output allows integration with both normally open and normally closed control circuits, providing installation flexibility. Auto reset functionality eliminates the need for manual intervention after a pressure fault clears, reducing downtime and service calls. The dual NPT port configuration accommodates differential pressure measurement across fans, blowers, and air filters.
Why Choose Dungs?
DUNGS Combustion Controls is a globally recognized manufacturer of safety and control components for gas and combustion systems. The 266956 pressure switch reflects DUNGS’s commitment to precision, reliability, and compliance with industry safety standards — making it a trusted choice for HVAC professionals and combustion engineers alike.
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