Axial fans. The axial air flow into the fan impeller, approximately cylindrical flow in the axial direction on the surface. Such fan including axial fan, axial blowers and axial compressors. (3) rotating fan. Use of the rotor rotates to change the chamber volume work. Common varieties Roots blowers, rotary compressors. According to the flow direction of the fan airflow into the impeller into: axial fans, centrifugal fans and mixed flow (Francis) fan. Fans can be divided according to use divided: axial fan, Francis fan, roof fans, air-conditioning fan and so on. Low pressure can be divided according to the fan blower, the pressure blower, high pressure air. Fan performance parameters are mainly flow, pressure, power, efficiency and speed. In addition exhaust fan, and the size of the vibration noise is also a major fan design specifications. Also known as the wind flow to flow through the fan, said the volume of gas per unit of time; pressure, also known as pressure exhaust fan is the largest manufacturer refers to the value of the gas pressure increases within the fan, there is static pressure, dynamic pressure and total pressure points; power is the fan input power, namely shaft power. And effective power turbine shaft power ratio is called the efficiency. Specifications exhaust fan, exhaust fan, air-conditioning equipment by Hao Yang Hao Yang Texas Air Conditioning Equipment Limited. Air Conditioning Equipment Co., Texas Hao Yang (www.dzhykt.com) strong, credible, in Dezhou chemical fiber fabrics, materials, and other industries 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!