The fire-control fan of LY series is widely used in hotels, gyms, schools, restaurants, movie theaters, assembly halls, exclusive residential dwellings, industrial & mining enterprises, and other fire-fighting & ventilated sites, and can also used in the air-conditioning system and environmental clarification system as support device. The external electromotor is used for fire control and ventilation, and the internal electromotor is used for ventilation. The product can transport air and other non-hypergolic, harmless and non-corrosive gas. The gas can’t contain any sticking substance, and the hard particulate matters of dust level contained are less than 150mg/m3. The temperature of inlet gas can’t exceed 120℃ in the operation of ventilation and air exchange. The product can make continuous operation for more than 50 minutes when the temperature of the exhausting gas is about 280℃.    www.blower-wheel.com