Centrifugal pumps for slurries and fluids with suspended solids. Constructed with casings and impellers made of cast iron, high-chrome, or stainless steel. Shaft sealed with a mechanical seal and backup packing. Open impeller allows the passage of solids up to 7 mm. Suitable for operation with electric, hydraulic, or combustion engines (diesel, gasoline, or gas). Designed with flanges compatible with conventional installations, enabling replacement without modifications to the environment.