Water/Wastewater
Patent for Valveless Chlorination System
Nov 04 2008
Accurately metering liquid sodium hypochlorite presents a unique challenge because of the fluidâs tendency to out-gas. Many conditions including elevated temperatures, exposure to UV radiation, and cavitation, in addition to, contact with metallic and organic impurities, tend to increase sodium hypochlorite out-gassing.
The resulting gas bubbles present a condition known as âgas lockâ which adversely affects the efficiency and accuracy of the injection pumpâs output. This, in turn, can significantly reduce the amount of chlorine added, and in the worst case, cause the pump to completely lose prime.
The Chloritrol⢠System is a unique valveless duplex pump design. The first pump head is high pressure and injects the sodium hypochlorite directly into the water main. The second pump head functions to remove out-gas bubbles from the inlet side of the high-pressure pump head.
Digital Edition
IET 34.2 March 2024
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