HTFC fire ventilation low noise cabinet centrifugal fan is the company successfully developed a one machine, high efficiency, low noise cabinet centrifugal fan, with a significant low noise, excellent high temperature performance, the new structure is compact, small vibration, light weight, easy installation and maintenance, etc., are widely used in hotels, restaurants, halls, theaters, basements, industrial enterprises, buildings and other needs fire smoke, kitchen hoods and ventilation occasions (lifting, sit installation can be) , but also the exhaust air can now sold throughout the country, praised by users, is the high-rise building fire smoke, ventilation is ideal. The series points A and B type, electric motor mounted on the outside of the box type A, the high temperature test at the flue gas temperature higher than 280 ℃ high temperatures, more than 40 minutes of continuous operation, to fire smoke The aim, after equipped with two-speed motors, both at low speed ventilation, but also at high fire smoke, is a machine with two; motor is mounted in the housing for the B type, generally used for feeding exhaust ventilation use . Second, the model described in Example: HTFC (A) - Ⅱ - 9 (1) air position number (1) Number (impeller diameter. Inch) Model (Ⅰ type of single-speed, Ⅱ type of two-speed, III type is backward impeller pressure type) structure type (A type of motor external fire type, B-type motor built-ventilated) Low Noise fire ventilation (dual) tank centrifugal fan