SWF series mixed-flow fans are novel and intermediate fans between axial-flow fans and centrifugal fans,they absorb the advantages from both above fans.The total pressure is higher than the same sized axial-flow fan;the air-flow rate is larger than the same sized centrifugal fan,they have the advantages such as wide and effective operational zone,high efficiency etc.They are widely used for air ventilation systems in the offices,buildings,hotels,large-size high-grade civil purpose architectures etc,they can also be used for ventilation in the mining and industrial enterprises such as freezing houses,textile plants and so on in order to replace for the low-pressure centrifugal fans or high-pressure axial-flow fans.
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