The EXCELLENCE double-casing centrifugal pumps of the EVF-2Q series offer flows up to 118.8 m3/h, that perfectly eliminate the froth in the slurry during operation. They are especially recommendable for flotation technique processes. They use a bearing assembly of VA, VB and PNL. They contain a motor base or motor support, which helps adoption of belt drive and direct drive. They pulleys can be changed for speed adjustment. They contain a steel, stainless steel or rubber lined steel box, with feeding suction and overflow box in the tangent line. The overflow box offers delivery of surplus slurry back to the pool. The feeding suction successfully eliminates froth parts and transports slurry. These pumps are of double-casing, with metal alloy, rubber or non-metal wet parts.