Description
The DUNGS 266912 air pressure switch is designed to monitor medium‑range pressure conditions in gas safety, combustion, and HVAC systems. With an adjustable sensing range of 2 to 20 inches water column (WC) and a single‑pole double‑throw (SPDT) contact output, this switch helps verify proper airflow or pressure before allowing system operation. Housed in a NEMA 4 enclosure for protection against water and dust, and equipped with a 5/32″ hose connection for easy installation, it ensures reliable and safe performance in gas control and ventilation applications.
Key Features:
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Adjustable air pressure switch with 2–20″ WC sensing range
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SPDT contact output for dependable signal switching
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NEMA 4 enclosure for protection from water and dust
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5/32″ hose connection for straightforward installation
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Suitable for combustion, gas safety, and HVAC systems
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Auto‑reset design for continuous operation






