4-72/4A blower fan:

1.Application and characteristic

*It is used for indoor air change in factory and large building ,both for input and export air.

*It is used for indoor air change in factory and large building ,also could match with air cleaning facility, both for input and export air.

*It is used for indoor air change in factory and large building, also could be used for smoke prevention and dust control .

*It is belongs to medium pressure, big flow centrifugal fan. It’s impeller is made of retroverted wing shape vane, cone arc front disc and plate back disc. The kind of fan has high efficiency ,low noise .It is sturdy and durable .

*It is used in thermal power plant ,and also could used for air change in mine.

The propeller:

The rotation: