Liaocheng Flextronics Ventilation Equipment Co. specializes in non-powered and non-powered natural ventilation fan and so on. "Roof natural ventilation selection and installation of the" national standard atlas 1. Scope: This portfolio is suitable for large-scale industrial plants and civil tall space economical and rational use of natural ventilation place ws FRP Axial roof fan, and should take full account of local outdoor weather conditions. 2, natural ventilation type: includes streamlined roof natural ventilation and natural ventilation roof cyclone type two kinds. Does not include all types of roof exhaust hood. Streamlined roof natural ventilation is installed on the roof, the use of heat and pressure to form the indoor and outdoor temperature reaches the replacement of indoor air devices. In between the boiler, turbine and so have a lot of heat between the workshop used this device. 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 all-aluminum Axial roof fan, 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 Axial roof fan, 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, the motor starting current does not cause a significant voltage drop dwti type axial roof fan in the power line, in addition, the grid lines and equipment allow short-time control through a sufficiently large starting current, can with full voltage starting; 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. dwt type axial roof fan, Flextronics ventilators, Zhejiang Axial roof fan ventilation equipment from Liaocheng Flextronics Limited. Liaocheng Flextronics Ventilation Equipment Co. (www.lcwctf.com) (www.lcwctf.com) is an industry leader in Shandong Liaocheng, fans, ventilation equipment, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Flextronics ventilators in leadership with the staff warmly welcome all inquiries negotiations to create Flextronics ventilation a better future.