
Htfc Centrifugal Fire Smoke Exhaust Fan, Class 2 Energy Efficiency Cabinet Centrifugal Fan. Superior performance parameters,Adopting backward curved plate impeller and lateral double-inlet structure, together with sound-insulated cabinet design, the fan features large air volume, high static. Wide installation adaptability.Twelve optional inlet & outlet positions are available to satisfy various space installation requirements. High balance grade.Dynamic balancing achieves G2.5 level in accordance with AMCA standard, improving reliability and effectively reducing operating noise. Excellent high temperature resistance Designed complying with XF211-2009 Standard *Test Method of Fire Smoke Exhaust Fans under High Temperature*. It can continuously operate for more than 30 min unde.