The DMW model FT2B fans are single suction 2-stage centrifugal fans designed and manufactured as following concept. High Efficiency The impeller is designed with latest fluid dynamics and the passages in the casings are finished with smooth profiles for high efficiency and low shaft power. High Reliability Each component of the fan is manufactured and assembled using high accuracy precision machinery based on successful experiences. Easy Maintenance Basically the fan needs no increased gear unit nor forced lubrication unit that makes simple maintenance. The fan casing is horizontally split for easy maintenance.