Greenheck recently redesigned its AMD line of Air Measuring Dampers that combine an accurate airflow measuring station and a low leakage control damper into one compact unit. The differential pressure Air Measuring Station (AMS) now includes extruded aluminum air measuring tubes instead of galvanized steel for a sleeker design.
Four damper models are available: AMD-23 combines an AMS with a VCD-23 damper (3V style blades); AMD-33 combines an AMS with a VCD-33 damper (airfoil blades); AMD-42 combines an AMS with a VCD-42 damper (extruded aluminum airfoil blades); and AMD-42V combines an AMS with a VCD-42V damper (vertical extruded aluminum airfoil blades).
