The HD Series Heavy Duty Damper is available in vertical or horizontal mounting configurations from 100mm square to 2380mm as a single section to 4860mm wide to a unlimited height

The HD-IB Series Heavy Duty Reduced Leakage Damper is designed for air conditioning and ventilation systems requiring air control and reduced closed blade leakage performance. It is ideal for environments in areas where exposure to aggressive air and moisture is a possibility.

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View and Download BSB HD Series installation maintenance and operating instructions online. HD Series Volume Control Dampers. HD Series control unit pdf manual download. Also for: Flangefit, Spigotfit.

The HD-LL Series Low Leakage Damper is designed for air conditioning and ventilation systems requiring air control and low closed blade leakage performance. It is ideal for environments where maintaining low leakage is critical, ensuring smooth airflow and minimal pressure drop, making it an ideal choice for larger more robust applications ...

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The HD-LL series damper has been designed for air conditioning and ventilation systems requiring air control and low closed blade leakage performance. The aerodynamic aluminium reinforced blade design requires only a single blade edge seal to the trailing edge.

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