Classification by cooling blower points: air cooling fans, blowers and water-cooled counterflow cooling blowers; by structure type: Vertical blowers, blower horizontal, vertical shaft blowers, blower intensive group; press seal type points: Maze sealing, piston ring seals, packing and mechanical seals, and other types of blowers. Roots blower Note: 1, the fan should not be installed in places frequented by people, prevent injuries and burns. 2, the fan should not be installed in easy to produce flammable, explosive and corrosive gases in case of fire and poisoning and other accidents. 3, according to the direction of the intake and exhaust ports and maintenance needs, basic face four weeks should leave appropriate leeway. 4, when the blower fan is installed, you should look at whether the firm foundation blower price, whether the surface smooth blower specifications, whether above ground, such as foundations. 5, when the outdoor fan configuration, set anti-canopy. 6, fans at not more than 40 ℃ ambient temperature can be long-term use, more than 40 ℃, should install exhaust fans and other cooling measures to improve the life of the fan. 7, when the conveying air methane gas and other media, the dust content should generally not exceed 100mg / m3. Price Roots blower, Roots blower, Zhucheng East Han Machinery Co., Ltd. is provided by the East Han Machinery Co., Ltd. Zhucheng. Zhucheng East Han Machinery Co., Ltd. (www.dhlcfj.com) strong, credible, Shandong Weifang fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the East Han Machinery Co., Ltd. Zhucheng and you hand into the brilliant, for a better future!