Liaocheng Flextronics Ventilation Equipment Co. specializes in non-powered and non-powered natural ventilation fan and so on. Axial fan wheel spinning reel traditionally backward axial fan wheel plant processes are generally used three rolls were rolled and then welded rough shape, then finishing machinery, due to this backward process leads Wheel of dimensional tolerances and geometric tolerances can not be effectively guaranteed, and the impact of stress and deformation due to welding without power ventilators how to install, but also lead to reduced accuracy of the fan, the fan affects the efficiency of the use of Zhejiang some Blower Drawing mold manufacturing hub, but only a very few product model, because a larger die size wheels, costly, and the need for supporting the thousands of tonnage pressure machine in order to be implemented, and the manufacturing cost of spinning tires with only drawing mold around 1/20, or even less, and the spinning tire tool machining cycle than drawing die even shorter for the fans varieties, small batch of product characteristics is extremely appropriate. Liaocheng Flextronics Ventilation Equipment Co. specializes in non-powered and non-powered natural ventilation fan and so on. No power ventilation installation project should be located in the vicinity of the ridge line, positioning, waterproof substrate rests on the roof without power roof ventilator, and pour on the substrate side edge embedded metal cover gaps under the roof in about 50 ~ 100mm (10 ~ 20mm Alice folded on the floor in use pliers). Cutting the hole to the hole waterproof substrate as a model, draw the outline of the hole, and then complete the hole in the roof cutter cutting. And trim polished edges. With a sharp blade to cut cotton insulation shaped by the meter, after removing part of the insulation cotton, cotton insulation and then aluminum foil insulation between the steel and cotton stuffed. Affixed with waterproof clay, the waterproof silicone, waterproof clay paste with water at the junction Cham board and roof cover. Complete both sides of the top of the crest of stainless steel without power fan, affixed with waterproof clay, and between the plug and the color plates marked with waterproof silicone, torn cardboard top. Fixed waterproof substrate, with at least 10 self-tapping screws or pop rivets waterproof board is attached to the roof. Installing variable angle tube neck, will change the angle of the neck is mounted on a substrate, the rotation angle of the neck becomes rotatable portion, opposite 90 degree angle adjustment through a level without power fan, so that the horizontal angle-neck top. The vertical displacement of the rotation angle of the neck after the adjustment is completed with crayons scribe mark and become part of the angle between the neck and the substrate. The four support arms card turbine head into the reserve in the trench, and then four aluminum pop rivets or screws fixed to the turbine head variable angle tube neck. At least four blind rivets with the fan mounted on the floor, check the screw is solid rivets. Retesting turbine head rotation is smooth and sometimes due to the transport or installation process, the turbine head and squeezed slightly deformed. Slightly adjusted by hand. The last four weeks in the plug marked with waterproof silicone and substrate, no power hood installation is complete. No power fan ventilation installation _ _ Chongqing Flextronics without power 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. You can also access (www.lcwctf.com/supply_details_48394845.html), for more information about the company.