Manufacturers supply stainless steel without power fan Shandong Jiang Han stainless steel without power fan without power roof fan DWT, also known as a | V-type turbine exhaust fan without a motor 1, an overview 11DWT a IV-type non-motor turbine exhaust machine · promote the use of natural wind blade operation, operation generates centrifugal force due to air flow, due to the very thin blades, even faint musty wind also make it turn. When the turbine rotates, centrifugal force is generated, the bottom of the hot air turbine, flue gas, wet gas up and out. When air is pulled turbine, it is conveniently formed area of ??low pressure turbine, namely chimney effect. Since the turbine continues to rotate, the outdoor fresh air will continue to flow into, then reach the cooling effect of natural ventilation. 2 · DV play a IV-type non-motor turbine exhaust machine without electricity, continuous operation, energy efficient, no smell of urine cream, no spark. Exhaust fan with arc-shaped leaves, there is a gap between each blade and vane, rotary vane complement each other when this void to fill this position, a lot of rain along the section line thrown round, a small amount of rain water along the leaf and slice quality living house, will not flow into the turbine, the turbine 1 while rotating Shikongshan gas flowing from the blade gap, blocking rainwater from entering, with weatherproof. Exhaust fan is fully enclosed ball bearing, lightweight stainless steel blades, machine, light weight, long life, generally more than 15 years of life. 2. Working conditions Operating temperature: -20 a + 80 ℃; Humidity: less than 90% of the dielectric strip even: air (dust content of no more than 100mg / m3) Power supply: no electricity 3, applications for factories, warehouses hut, rooftops of buildings, villas, patio, greenhouse, livestock breeding, and all mine tunnel roof ventilation, ventilation. 4, configure the impeller, bracket. 5, processing fan-shaped impeller blades made of stainless steel blade and die molding. Manufacturers supply stainless steel without power fan Shandong Jiang Han stainless steel without power fan