Gansu Francis fan between the fan, Francis fan axial fans and centrifugal fans between centrifugal impeller to allow air to do both sports and axial movement, the movement of air shell axial and centrifugal mixing the two forms of exercise, so called Francis. Maryland Francis fan pressure coefficient higher than axial fans, centrifugal fans than the flow coefficient, pressure and flow are used in the sort of occasion. Gansu Francis fan to fill the gaps between axial fans and centrifugal fans, but with easy installation features. Maryland Francis fan combination of axial and centrifugal fan characteristics, shape looks more like a traditional axial fans. Gansu Francis fan casing can have an open entrance, but more common situation is that it has the shape of a right angle bend, so that the motor can be placed outside of the pipe. Maryland Francis fan with high pressure centrifugal fans, axial fans high flow, high efficiency, energy saving, low noise, easy installation and so on. Gansu exhaust fan in the kitchen will smell produced during food processing, high temperature, gas fumes to drain away quickly machinery. Lanzhou exhaust fan with excellent performance, excellent high temperature performance, high efficiency, small footprint than the centrifugal fan, convenient installation. Gansu exhaust fan axial fan is small, generally at high gas fumes to go through the motor, easily damaged. Compare Lanzhou exhaust fan and backward impeller selection of low speed low noise, small diameter larger amount of wind can get full pressure. Gansu exhaust fan exhaust fan optional main control parameters temperature, air flow, total pressure, efficiency, noise, motor power, speed and shaft power. Lanzhou kitchen exhaust fan kitchen fan is indispensable key equipment, it is recommended not to install in the ceiling as possible, to be installed in the engine room, the roof or exterior walls for easy maintenance of the place. Lanzhou Gurley air ventilation and air conditioning equipment Co., Ltd. will continue to innovate beyond the self, quality brand, service brand, and strive to become experts in Gansu air conditioning and ventilation equipment, professional customers to build an air circulation, fresh, comfortable working environment.