The CDRS25 commercial control butterfly damper installs easily in round spiral ductwork. It features:
Galvanized steel construction.
A leakage rating of .15 scfm per inch of perimeter at 4" w.g.
Pressure differentials up to 6" w.g.
Specially designed blade-to-frame foam seal that fully encompasses the blade edge.
规格
The CDRS25 is an ultra low leak “true” round control damper that easily installs in round spiral ductwork. The ultra low leak feature is a result of the specially designed blade-to-frame neoprene seal sandwiched between two round blades and fully encompassing the blade edge.