High efficiency impellers designed to maximize fluid flow and minimize shear rate. 3 or 4 tapering twisted blades, cambered and sometimes provided with rounded leading edges. The blade angle at the tip is lower than that at the hub. Resultant flow is streamlined.They have been used to blend low-viscosity liquids in shear-sensitive applications and to suspend solids. The aerodynamic shape makes the blades more effective at producing flow for a ... Continue