Calculate the required static pressure fan duct according to the situation: 1, based on the amount of wind and wind speed (wind speed 10-15 m / s or so) to determine the cross-sectional area of ??the duct. Duct aspect ratio should not exceed 2: 1 (to save material and reduce the drag). 2, according to the wind speed, the wind pipe cross-sectional area, elbows, reducers, etc. to calculate the drag (ie the required fan static pressure). According to the calculated air flow, static pressure. Select the appropriate fan. Shanxi nagorye blower limited liability company, to introduce you to local fan axial fans known as FRP axial fan model, is commonly used in the mining industry on a fan FRP axial fans, but also for local exhaust ventilation cooling system, security is different from General Motors and its fan blades in a cylinder, the shape is a cylinder, for local ventilation, easy installation, ventilation effect is obvious, safe, hair dryer can be connected to the designated lookout area. Shanxi nagorye Blower Co., Ltd. is from Shanxi Blower Works reorganization. Our company employees 187 people FRP axial fan Supply, 11 of whom have a college education, engineering and technical personnel 10 people, a senior titles of two people FRP axial fan manufacturers, intermediate grade eight. The company now covers an area of ??30,000 square meters, strong technical force, complete tooling detection means perfect, can develop their own variety of fan products FRP axial fan _ quote _ Shuozhou FRP axial fan nagorye blower fan from Shanxi nagorye limited liability company. Shanxi nagorye Blower Co., Ltd. (www.sxgfj.cn) (www.sxfjgs.com) strong, credible, Xinzhou in Shanxi fans, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead nagorye blower into the brilliant and you work for a better future!