This damper allows airflow to be adjusted and measured at one location, resulting in reduced field time and improved accuracy in air balance, according to the manufacturer. The Iris Damper uses interlocking steel plates and calibrated control lever to form an adjustable aperture. By measuring differential pressure across the pressure ports, and referring to the matching performance curve, airflow can be precisely determined. Ten sizes are available from 4 inches to 32 inches. Capacities range from 15 cfm to 20,000 cfm. The Iris Damper is manufactured of galvanized steel and fitted with a neoprene gasket for airtight mounting. Stainless steel, motorized and positive seal versions are available.

Continental Fan Manufacturing Co.,
203 Eggert Road, Buffalo, NY 14215
(800) 779-4021
fax (716) 842-0611