266911 – Dungs AA-A2-4-3 Air Pressure Switch, 0.4-4″ W.C. B- Loading Line Type: Braided

B- Loading Line Type: Braided Stainless Steel

The AA-A2-6… versions feature NPT threaded connections that also include a test button in the lower housing

All Eclipse open burner nozzles are flame retention type nozzles which ensure satisfactory operation over a wide range of mixture pressures and draft conditions

4" inch NPT pipe fitting

P/N: 42148

266911 – Dungs AA-A2-4-3 Air Pressure Switch, 0.4-4″ W.C. B- Loading Line Type: BraidedIn Stock Dungs AA A2 Differential Air Pressure Switches are field adjustable, compact pressure switches for automatic burner controls. Available with hose or NPT threaded connections. The AA A2 4 differential pressure switches are suitable for making and or breaking a circuit when the medium pressure changes relative to the setpoint. The AA A2 4 versions feature hose connections. Application: Differential pressure monitoring in firing, ventilation and