Rectangular Industrial Dampers
Heavy-duty rectangular control dampers for industrial applications features that enable them to meet all high temperature, high pressure airflow modulation and shutoff applications.
NAH-720-4, NAH-/721-4
Heavy Duty, Flanged, All Steel, Airfoil Blades, up to 40 w.g."
Application
Model NAH-720-4 (Opposed Blade), NAH-721-4 (Parrallel Blaed) are extremely heavy duty industrial steel airfoil control damper that is rated up to 40 w.g. This damper has 3/8" galvanized steel frame and 12 gauge double skin construction airfoil blades. The NAH-720/721-4 can also be manufactured in all stainless steel construction.
