The BLUEline Rotary Lobe Pump is a self-priming, valveless, positive displacement pump. With pulsation-free operation, reversible pumping, dry-run capabilities, flow rates up to 7,000 gpm, and Maintenance in Place (MIP); the BLUEline series pumps are an excellent choice for the wastewater industry. Applications include: Sludge (Primary, WAS, RAS, Digested, Thickened, etc.), Biosolids, Grease, Sewage, Scum, Lime Slurry, Alum Sludge, Permeate, Polymers, etc.