... 72 Centrifugal Fan 1.Dynamic balancing tested Impellers 2.High efficiency,Easy installation 3.ISO9001:20 T4-72 Centrifugal Fan 1. ... ApplicationsT4-72 Centrifugal Fan are mainly used in blower fan ... recovery boiler,,,,and various boilers. 2.Structure Centrifugal fan mainly consist of impeller,case,air inlet,adjusting door ...