Texas Sheng clean air-conditioning main products are roof fans, steel hood, stainless steel fan, all-aluminum fans, centrifugal fans and other products, as well as all kinds of steel, aluminum, stainless steel hood, various models, a variety of purposes, details please consult our company has a reliable quality assurance system, your satisfaction is our relentless pursuit. When it comes to roof fans, is based on the original roof ventilator on the advantages of similar products at home and abroad, developed another roof ventilator. It is a standard form, a wide range of applications, roof fan steel hood, you can use the occasion and the amount of wind, pressure and noise of different requirements. Xiao Bian gave you talk roof fan installation environment particularity. Roof fan is mounted on the roofs exhaust ventilation, use of the environment due to the installation of the special nature of the decision of the fan using special materials and structures. Air back device settings after shutdown to prevent roof fan, because the high-speed rotation of the fan under heat and pressure, resulting in a lot of the wind speed increases in the duct, the fan motor inverted start is very negative, may be due to starting current excessive damage. Roof fan should be designed with reliable rain, snow, anti-wind performance, snow and sand like rain, as snow and sand because not only into the fan from the top, in the outdoor wind speed reaches a certain intensity, also might enter from the lower blower for grain storage, power, petroleum, chemical, metallurgy, stadiums and other modern amenities forced ventilation, sales of integrated steel hood to medium high temperature applications. Also to remind you, some of the tools needed for the construction, the secondary component, oxygen acetylene welding and other consumable materials, to meet local supply. Texas Sheng clean air-conditioning main products are roof fan, stainless steel fan, steel hood manufacturer, all-aluminum fans, centrifugal fans and other products, as well as all kinds of steel, aluminum, stainless steel hood, various models, a variety of purposes, For details, please consult our company has a reliable quality assurance system, your satisfaction is our relentless pursuit. Roof fan roof fan specifications in the form of classification, a wide range of applications, can use the occasion and the amount of wind, pressure and noise of different requirements. There are three types of fans: A, Axial roof fan: Model DWT-I type, suitable for low-voltage, high-volume usage scenarios. According to user needs can also be designed to send two-way reversible exhaust, which has positive and negative conditions equivalent characteristics roof fans, such as DWT-Ⅴ type; B, centrifugal roof fan: Model DWT-Ⅱ type, DWT-Ⅲ type two kinds of patterns for smaller air volume and pressure requires high; C, no motor turbine roof fan: Model DWT-Ⅳ type, is driven by a kind of indoor and outdoor air pressure with special curved blade axis rotated to discharge an ideal energy-saving ventilation of indoor air steel hood, specializing in the production of steel hood, Sheng clean air-conditioning (certified merchants) are provided by the Texas Air Conditioning Equipment Co., Ltd. Sheng-purification. 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!