Francis (oblique flow) fan, axial fan pressure coefficient than high flow coefficient than the centrifugal fan, with the pressure and flow are "sort" of the occasion. It fills the gap between axial fans and centrifugal fans of. Along with easy installation features. Francis turbine combines axial and centrifugal fans feature shape looks more like a traditional axial fan. Cabinet can have open inlet, but more common situation is axial fans, it has the shape of a right angle bend the fan, the motor can be placed outside of the pipe. Excretion shell slow expansion green fan, to slow down the velocity of the air or gas flow, and the kinetic energy is converted to useful static pressure. 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 capable of changing the blade pitch (which is quite similar to a helicopter rotor) when the fan is running, thereby correspondingly varying the flow rate. This is called variable pitch (VP) axial fans. Hao Yang air conditioning equipment (Figure), centrifugal fans, fans are provided by the Texas Air Conditioning Equipment Co., Ltd. Hao Yang. Air Conditioning Equipment Co., Texas Hao Yang (www.dzapjt.com) adhere to the "people-oriented" business philosophy, has a professional staff, and strive to provide the best products and services to contribute to the community, and to welcome new and old customers to visit us, sincere cooperation for a better future. Hao Yang air conditioning equipment - your trusted friend, Company Address: Dezhou Economic Development Zone, Contact: Mr Zhu.