Dungs AA-A2 Differential Pressure Switch
For air, flue and exhaust gases /Field adjustable
AA-A2… differential pressure switches are field adjustable, compact pressure switches for automatic burner controls. Available with hose or NPT threaded connections. NEMA 4 Enclosure Rating
AA-A2-4... versions feature hose connections
AA-A2-6... versions feature NPT threaded connections that also include a test button in the lower housing.
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