Cross-sectional axial fan is generally airfoil. Blades may be fixed position, and to be rotating about its longitudinal axis. Blades and the blade pitch angle or the air flow may be adjustable or not adjustable. Changing the blade angle or pitch is one of the main advantages of axial fan. Small blade pitch angles produce lower flow rate, while increasing the spacing may produce a higher flow rate. Advanced axial fan blade pitch can be changed when the fan is running (which is quite similar to a helicopter rotor) fan, thus changing the flow rate accordingly. This is called variable pitch (VP) axial fans. Fan coil certain amount of wind, water temperature must be Texas centrifugal fan, when changes in water supply, cooling capacity with horizontal concealed fan coil water supply change, part of the fan coil product performance based on statistics, when the water temperature is 7 ℃ reduce the amount of water to 80%, the cooling capacity of about 92% original, indicating when the water supply changes affect the cooling capacity of the relatively slow. Fan coil supply and return water temperature constant, when the water temperature rises, the cooling capacity with the reduction, according to statistics, when the water temperature rises 1 ℃, reduce the cooling capacity of about 10%, the higher the water temperature, the greater the reduction, dehumidification capacity decreased. Certain water conditions, when the fan coil air volume change, cooling capacity and air treatment enthalpy difference varies, generally reducing the cooling capacity, enthalpy difference increases, the unit cooling capacity of the fan power changed little. Fan coil inlet, when the water temperature difference increases, reducing the amount of water, the heat transfer coefficient of heat exchange coil decreases. In addition, the temperature difference has changed, therefore, fan coil cooling capacity for the return water temperature increases with decrease of Texas fan manufacturers, according to statistics when the water temperature is 7 ℃, supply and return water temperature increased from 5 ℃ to 7 ℃, the cooling capacity can be reduced by about 17 percent of Texas fan manufacturers | Changyi fans | Hao Yang Hao Yang air conditioning equipment from the Texas Air Conditioning Equipment Limited. Air Conditioning Equipment Co., Texas Hao Yang (www.dzapjt.com) strong, credible, in Dezhou fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Hao Yang air conditioning and you hand into the brilliant, for a better future!