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FAQs for Gas Feed Systems

Gas feed equipment & solutions from Evoqua for simple & reliable disinfection dosing, control & safety management

Gas Feed FAQs

Why Cl2 Gas Feed disinfection?

Cl2 is a highly effective oxidant and a relatively economical option for disinfection. Chlorine can be safely transported, easily applied, measured and controlled.

Why Wallace & Tiernan Gas Feed equipment?

Chlorine gas has been the predominant chemical for the disinfection of water since our founders Charles F. Wallace and Martin F. Tiernan installed the first chlorinator in New York over 100 years ago. With more than 55,000 installations globally, Evoqua's gas feed line continues to lead the market using the latest remote vacuum and solution feed technology, designed with "V" notch high precision dose control.

What are the available technologies in Gas Feed?

The technologies are mainly categorised by 1) Sonically Operated or 2) Differentially Regulated Feeders. The Wallace & Tiernan product range includes both types. From a CAPEX point of view, the sonically regulated feeders are the economical option. However, the high capacity compromises on health and safety and reliability, hence our recommendation is to go for Differentially Regulated Feeders.

How is the Capacity of Gas Feeder Determined?

The capacity of Feeder is determined on the application (residual demand) and the flow of water. The dose unit is mg/ltr or PPM. The capacity of feeders are available in both metric and imperial units.

How to confirm on Disinfection Performance

The Cl2 gas disinfection performance can be determined instantly on site with the 24 hours online measurement of residual Cl2. The consumption of Cl2 can be cross checked with gas flow measurement from the feeder as well as reliable gas cylinder weighing systems.