Opposed Blade Damper
If an application is modulated then opposed blade dampers are better suited. This is due to the ability to control a broader volume range.
The opposed blade damper arms can swing open 25% to 100%. Furthermore, the opposed damper’s arm swing has better control and more relative damper effect than similar dampers such as parallel.
Parallel Blade Dampers
Parallel blade dampers air flow rate is more rapid than opposed blade dampers when opened. This makes them an idea choice when controlling 75% to 100% airflow.
The blades in a parallel configuration allow the damper to be more sensitive to arm swings. Thus, small position movements supply a considerable change.
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