Watson-Marlow 520RE PumpWatson-Marlow’s 520RE high-pressure chemical metering pump offers flows to 55 GPH and pressures to 100 PSI. The combination of the tube elements and pump head design allows the pump to be utilized in applications requiring accurate metering, dosing and transferring of harsh chemicals, including sodium hypochlorite, ferric chloride, sodium bisulfate, fluoride, carbon and lime slurries, polymers, aqueous ammonia, potassium permanganate, and caustic slurries in the wastewater market. The 520 Series pumps and LoadSure elements are designed to guarantee correct loading, as well as one-minute maintenance with no snaking, twisting or pinching. Operator safety is addressed by utilizing a shade guard, sealed to withhold any spillages at atmospheric pressure. Drain-port plugs allow for easy removal of spilled fluid and an optional float switch leak detector will stop the pump automatically in such conditions. – wmpg.com