Description
Circle inlet and outlet. Designed for supply air or exhaust air terminal in constant air volume system. used to setting and balance the air flow easily in ventilation and air conditioning systems. the units are mechanical self-balance structure and no power to drive. the airflow set-point is regulated precisely by adjustment the airflow needle up to required airflow. simple installation (inserted into the air duct) and maintenance free.
Feature
Inlet diameter: 4" x 10"(100 to 250 mm)
Air flow range: 27 to 67 CFM (0.0125 to 0.032m3/s)
Operating pressure ranges：0.2 to 4 in.wg (50 to 1000 Pa)
