Liaocheng Flextronics Ventilation Equipment Co. specializes in non-powered and non-powered natural ventilation fan and so on. Analysis of roof ventilation installation needs a roof ventilation is damaged during the installation of a detailed examination of the fan assembly connector, loosening, found the problem to be corrected. Impeller rotation direction and flags in the same direction. 2, roof ventilators lifting, with a rope tied four laps thread, thread ring should be screwed to the maximum stress direction. Long distance or height of the exhaust air ventilation without power lift manufacturer, remove the blinds wind asked. In order to avoid danger. 3, roof ventilators and General Motors, Motor exported to the exterior of the housing outlet box. For the convenience of user connections, the threaded hole in the side of the roller shutter doors Square features a M20. The user can then wind the wire into the hole bolt holes, used in insulating sleeve to protect the line. If you do not use the connection holes. Na bolt applications. 4 Install the fan base surface should be smooth, solid circle, fan base naturally tight, do not lay the foundation to join, do not allow the mounting surface of the gap is too large, fan waterfall. Tighten the bolts. 5 without power roof ventilators, blade angle adjustment before plant. The user can not change the white line or fan performance will change. Axial fans are promoting the use of natural natural wind speed rotation of the turbine fan, and the indoor and outdoor air convection principle, parallel to the air flow in any direction, and into a bottom vertical acceleration of the air flow, in order to improve indoor ventilation change An apparatus for gas effect. The fan no electricity, no impatient tone, long-term operation. Based on air flow and air flow principles of natural law, is set at the top of the roof of the rationalization of non-powered ventilation, interior can quickly exhaust gas heat and dirty, improve the indoor environment. Is the use of natural wind turbine fan and indoor and outdoor temperature difference caused by air convection, rotation of the turbine and thus promote the use of centrifugal force and negative effects of the indoor stale hot air out. Axial fans a special energy efficiency, curved blades is the result of the best results of scientific computing, to strictly ensure working condition will never let rainwater intrusion. High exhaust efficiency, as long as not less than 0.2 meters in the breeze or indoor and outdoor temperature difference exceeds 0.5 ℃, can be lightweight, efficient operation. 2, the central axis has a fine level without power ventilation accessories to make the high-speed operation of the turbine blades never deformation, which greatly improves the fan's life. 3, variable angle neck design allows the fan installed in 0-22.5 degrees bevel under arbitrary. No power ventilation price _ Flextronics ventilators (certified) _ Sichuan no power ventilation 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.