Description
The DUNGS 266934 air pressure switch is designed to monitor airflow and pressure conditions in HVAC, combustion, and gas safety systems. With an adjustable sensing range of 0.4 to 4 inches water column (WC) and a single‑pole double‑throw (SPDT) contact output, this switch helps confirm proper airflow or venting before allowing system operation. It is housed in a NEMA 4 enclosure for protection against dust and water and features 1/4″ NPT positive and 1/8″ NPT negative ports for versatile pressure line connections and accurate measurement.
Key Features:
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Air pressure switch with adjustable 0.4–4″ WC sensing range
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SPDT contact output for reliable signal control
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NEMA 4 enclosure for dust and water protection
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1/4″ NPT positive port and 1/8″ NPT negative port for flexible connections
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Designed for HVAC, combustion, and gas safety airflow monitoring
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Auto‑reset design for continuous operation
