HUMIDIN's Centrifugal Backward Curved Fans/Blowers consist of Double Inlet Double Width(DIDW) and Single Inlet and Single Width (SISW) configuration. These fans have backward curved impellers with backward curved blades having special profile to give you maximum efficiency at low noise levels. These impellers are statically and dynamically balanced. The fans are suitable for various applications where high volume air displacement is required like air cooling, general ventilation, pressurization, etc., in various commercial processes and various industrial HVAC systems like Power Plants, Mine Ventilations , Marine Ventilations etc. DISCERNIBLE FEATURES: Fan Size(Dia): 500 mm to 2000 mm Flow rates from 2500 upto 300000 cmh Pressures from 100 Pa to 5000 Pa APPLICATIONS For commercial and industrial ventilation in AHU´s, Evaporative Coolers, other HVAC systems, etc.