1892 France developed into a cross-flow fan; in 1898, the Irish forward 西罗柯 designed blade centrifugal fan blower wholesale farming, and widely used for various countries; the 19th century, has been used in mine ventilation axial fans and metallurgical industries blast, but the pressure is only 100 to 300 Pa farming fan Which is good, efficiency is only 15 to 25 percent until the 1940s after it has been rapid development. 1, the installation as a whole unit of centrifugal fan, should be placed directly on the basis of leveling with a pair of oblique horn. 2, on-site assembly of the centrifugal fan culture fan, cutting surface on the base should be properly protected, there should be no rust or operation, when the base is placed on the basis of application of the paired oblique horn leveling. 3, the bearing should be in close contact with the base, vertical not horizontal should not exceed 0.2 / 1000, measured with a spirit level on the spindle horizontal bottom level should not exceed 0.3 / 1000, at the level of the equatorial plane bearing the standard instrument measurement. 4, bearing scrape preceded the rotor axis and the axis of the housing correction farming fans, while adjusting the gap and the gap between the rear side of the shaft hole impeller shaft and housing between the air inlet to conform provides equipment technical documents. 5, when the shaft and bearing assembly, equipment and technology should be required documents to be checked. Should be maintained between 0.03 to 0.04 mm in the bearing cap and bearing interference (measure the outside diameter of the bearing and the bearing inner diameter). Aquaculture fan wholesale | Dongying farming fans | Minhua Qingzhou Qingzhou temperature control equipment supplied by Chinese citizens thermostat plant. Temperature Control Equipment Factory Qingzhou public Hua (www.minhuawenkong.com) (www.minhuawenkong.com) (www.minhuawenkong.com123) 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 China and China Qingzhou temperature control equipment and you hand into the brilliant, for a better future! You can also access (www.minhuawenkong.com/supply_details_43896795.html), for more information about the company.