Watson-Marlow's 620 series pump for sodium hypochlorite combines power and control for wastewater treatment applications. The 620 hypochlorite pump can run dry so off-gassing chemicals will not cause the pump to vapor lock. By maintaining +/- 0.1% accuracy in hypo metering the pumps yield increased savings on chemical usage. The 620 Sodium Hypochlorite Pump delivers market-leading flow rates at pumphead speeds that don’t compromise tube life. With its extended performance, it can reliably deliver 50% more flow with one tube compared to other peristaltics. The pump provides unrivaled performance with a control ratio of million:1. The 620 reliably handles harsh chemicals in the water and wastewater treatment industry, including sodium hypochlorite, ferric chloride, sodium bisulfate, aluminum, fluoride, carbon and lime slurries, polymers, aqueous ammonia, potassium permanganate and caustic slurries. With no valves or seals to clog, it requires minimal maintenance, resulting in reduced downtime, providing a cost-effective alternative to other pump technologies.