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Disinfection & Purification
Gas Feed Systems


The former Capital Controls Company, now part of Severn Trent Services, pioneered the development of the all-vacuum gas feeder. The design principle has become the worldwide standard for the safe feeding of toxic gases such as Chlorine, Sulfur Dioxide and Ammonia.



The Capital Controls® line for water and wastewater includes the following Gas Feed Systems….

Vacuum Regulators Automatic Gas Feeders Ejectors

Series 200 Gas Feeder
Designed for manual or semi-automatic gas regulation with ten different capacities provides versatiltiy in metering gas flow requirements up to 500 PPD. Automatic is a simple addition.
Advance ®
Model 480 Gas Chlorinator
Designed for manual or semi-automatic gas regulators with five different capacities up to 100 PPD.
Capital Controls ®
Series NXT3000 Gas Feed System
Only one vacuum regulator is required to feed the maximum capacities of chlorine up to 500 PPD.


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