Offering Pitched Blade Turbine. Impeller Diameter � 450 mm to 3000 mm Hub with even number of blades are mounted at an angle of 10° to 90° with respect to the horizontal The most commonly used impeller of this type is the four bladed 45° pitched blade turbine Mixed flow impeller as fluid discharge has both axial and radial components Generally down-pumping Up-pumping in applications such as gas dispersions and floating solids mixing Used in flow control applications