The primary perform of HVAC dampers is to regulate the airflow within your process. This may be critical for a number of factors. Backdraft dampers are both gravity or motorized. Gravity backdraft dampers utilize the drive of gravity to shut the damper when there isn't a air circulation. Motorized backdraft https://air-control-dampers-for-h67899.digitollblog.com/36435617/air-control-dampers-for-hot-climates-an-overview