The present invention relates to a multi-valve damper which divides a section
of an airflow duct into at least two airflow sections. The damper has a plug body
having a proximal end and a distal end. The plug body is adapted to separate a
section of an airflow duct into at least two airflow sections. At least two damper
blades may be mounted on the distal end of the plug body, each of the damper blades
controlling airflow in a respective airflow section. At least one airflow sensor
may be provided in each of the airflow sections for controlling the respective
damper blades. An actuator mechanism responsive to the sensors may be provided
for opening and closing the damper blades.