Butterfly dampers are available in round, square, and rectangular configurations. The A–100 series of dampers are engineered to meet each customer’s specified operating conditions, to assure dependable and trouble free operation.
These dampers can be round dampers from 3″ diameter to 216″ diameter. Square and rectangular dampers are offered in small and large sizes as well; limited only by good engineering practices. (Design and project management provided by Mader Dampers USA)