Impeller cut 7BIT 9101 balance correction according to the provisions in the balancing machine. Impeller speed test carried out according to the provisions 7BIT 6445. Mechanical operation test fire exhaust fan in the work book Jen confusion speed, continuous operation, the bearing temperature stable after 20min, measured bearing m liters and vibration. no more than a liter of 4nC, vibration detection 99 and m values ??should be consistent with the relevant provisions of 7Bfr 96V. HTF fire exhaust fan should be how effectively saving it with the gradual rise of China's major works now, China's energy use is also increasing, so in order for sustainable development, fire exhaust fan, energy saving is very necessary that we improve product performance, we must also consider how to effectively save energy. HTF fire exhaust fan applications to take full account of this, then the HTF fire exhaust fan is how effectively saving it, to find out more today: 1, HTF fire exhaust fan in the application process, the exhaust fan principle, must be reasonable control of the radial clearance value duct and leaves at the top. 2, a reasonable choice of model exhaust fan, exhaust fan, keep the fan in the inefficient zone. 3, we should also try to reduce the pipe network resistance, a reasonable choice of pipe size and installation location, installation imports collector. 4, such as a separate exhaust fan impeller must apply with the appropriate motor, which will cause the phenomenon of large horse-drawn cart. Exhaust fan, exhaust fan sales, Sheng clean air-conditioning (certified merchants) from the Texas Air Conditioning Equipment Co., Ltd. Sheng-purification provided. Road Zhiyuan, temper forward. Texas Air Conditioning Equipment Co., Ltd. Sheng-purification (www.dzhffj.com) aims to become and you win symbiosis, strategic partners to move forward, more determined to become a fan, ventilation equipment most influential companies, together with you leap and common success!