The BDB series is DIDW centrifugal fans with high efficiency non overloading backward curved impellers.
The fans are suitable for supply or extract applications in commercial, process and industrial HVAC systems. Sizes of this series are in accordance with AMCA standard 99-0098-76 and DIN 323 R20.
Each fan type has its maximum operating speed and power due to its mechanical design. The operating limit of BDB series - fan type is design to meet the requirement of class I, II and III limit as defined in AMCA standard 99-2408-69.
The BDB series is available in type S, C, T, X or Z.