Casing/Housing

The performance and efficiency of the fan mainly depend on the impeller, but the shape and size of the volute and the shape of the suction port will also affect it.

Function of volute: collect the gas thrown out from the impeller and make it flow to the exhaust port. In this flow process, part of the dynamic pressure energy obtained by the gas from the impeller is transformed into static pressure energy to form a certain wind pressure.