Manufacturers certify dampers, centrifugal fans.

ARLINGTON HEIGHTS, Ill. - The Air Movement and Control Association International Inc. recently welcomed three new members taking part in the association's certified-ratings program.

Chemposite Inc. of Delta, British Columbia, has two dampers licensed through the program. The Model AC510 Fiberglass Air Seal Dampers and the Model AC511 Volume Control Dampers have been licensed through AMCA for air leakage and air performance.

Flowtech Co. Ltd. in Yung-Ho City, Taiwan, has licensed its DWDI centrifugal fans for sound and air performance. Flowtech has also certified the BCZ Series, Double Inlet Centrifugal Fan with Backward Inclined Wheels through AMCA.

Mississauga, Ontario-based Kinetics Noise Control Inc. has two acoustic duct silencers licensed with AMCA for prefabricated silencer sound and air performance. Those models include VRS/1 Rectangular Duct Silencer, 36-inch and 60-inch length, and VSR/3 Rectangular Duct Silencer, 36- and 60-inch length.

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