Liaocheng Flextronics Ventilation Equipment Co. specializes in non-powered and non-powered natural ventilation fan and so on. Advantages to conduct retarder axial fan ventilation: cooling effect is good; low energy consumption, is particularly important in promoting energy today; ventilation and easy to grasp the opportunity, less prone to condensation; not a single fan with no power roof exhaust fan, convenient flexible. Disadvantages: Due to the small amount of wind, a long time ventilation; ineffective precipitation, high moisture grain should be ventilated with axial fans. In order to cool down for the purpose of ventilation, the application of axial fans safe, efficient, energy-saving axial fans in the retarder Ventilation in precipitation for the purpose of ventilation. Liaocheng Flextronics Ventilation Equipment Co. specializes in non-powered and non-powered natural ventilation fan and so on. Axial fan is driven by the motor running, in fact, are the same for any equipment, you want to work together, there must be a similar "engine." In the choice of axial fan motors, hoping to be able to drive the impeller motor up to speed quickly and work properly. Motor starting, including start and accelerate the whole process of electricity. Starting its way into full voltage starting and decompression starter. Reasonable choice of motor starting method of roof exhaust fan quotes, must be based on the capacity of the supply network, the mechanical load on the starting torque requirements, the characteristics of the motor itself and other factors, specific analysis, in order to obtain the specified start time. For example, a large capacity of the grid FRP roof exhaust fan, the motor starting current does not cause a significant voltage drop in the power line, in addition, the grid lines and equipment allow short-time control through a sufficiently large starting current, can be all- pressure start; torque at startup if the fan is not required, and not in terms of grid capacity is relatively large electric motor, the main consideration how to reduce the starting current and the use of vacuum starter. Quote roof exhaust fan exhaust fan _ _ Fujian roof ventilators from Liaocheng Flextronics Flextronics ventilation equipment Limited. Liaocheng Flextronics Ventilation Equipment Co. (www.lcwctf.com) (www.lcwctf.com) strong, credible, Shandong Liaocheng fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Flextronics ventilators and you hand into the brilliant, for a better future! You can also access (www.lcwctf.com/supply_details_50546660.html), for more information about the company.