Gas Feed Systems

All-vacuum operated gas feed equipment & solutions for simple & reliable disinfection dosing, control & safety management

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. Using a remote vacuum-operated gas feeder, a chlorine solution is prepared on-site by dosing the chlorine gas into the process water. Benefits of the system include: the most economic disinfectant available supplied as gaseous or liquid chlorine supplied in cylinders or ton containers, safe all-vacuum dosing operation using accurate and reliable V-Notch™ flow control technology, manual and automatic dosing control options, automatic detection and shut-down in the event of accidental gas release, and complete design and system supply of all gas feed and handling equipment and safety management accessories.

Gas Feed Systems FAQs
Most Economic Disinfectant

Supplied as gaseous or liquid chlorine supplied in cylinders or ton containers

V-Notch™ flow Control Technology

Safe, accurate & reliable all-vacuum dosing

Safety

Automatic detection & shut-down in the event of accidental gas release

Filter Results 0

Technology
0
Chlorine Capacity, Maximum: kg/hr
0
Carbon Dioxide Capacity, Maximum: kg/hr
0
Sulfur Dioxide Capacity, Maximum: kg/hr
0
Ammonia Capacity, Maximum: kg/hr
0
9 Results
List View
Grid View
Gas Feed V10K™ Vacuum System

Gas Feed V10K™ Vacuum System

Efficient, low-capacity differentially regulated gas feeder with a standardized, flexible design for dosing up to 15 kg/hr

  • Chlorine Capacity, Maximum: kg/hr 15
  • Carbon Dioxide Capacity, Maximum: kg/hr 8
  • Sulfur Dioxide Capacity, Maximum: kg/hr 10
  • Ammonia Capacity, Maximum: kg/hr 5
Learn More
Gas Feed V-2000™ Chlorinator

Gas Feed V-2000™ Chlorinator

Remote vacuum solution covering medium to high capacity applications with differentially regulated gas feeder and floor or wall mounted options for versatility

  • Chlorine Capacity, Maximum: kg/hr 200
  • Carbon Dioxide Capacity, Maximum: kg/hr 50
  • Sulfur Dioxide Capacity, Maximum: kg/hr 180
  • Ammonia Capacity, Maximum: kg/hr 90
Learn More
Gas Feed S10K™ Chlorinator System

Gas Feed S10K™ Chlorinator System

All vacuum operated, sonically regulated gas feeder unit for low capacity dosing applications

  • Chlorine Capacity, Maximum: kg/hr 10
  • Carbon Dioxide Capacity, Maximum: kg/hr 8
  • Sulfur Dioxide Capacity, Maximum: kg/hr 9
  • Ammonia Capacity, Maximum: kg/hr 4.75
Learn More
Gas Feed 60-225 Ammoniator

Gas Feed 60-225 Ammoniator

Control device for accurate metering of gaseous ammonia feed directly into water under positive pressure.

Learn More
Gas Pressure Reducing Valve Series 50-165

Gas Pressure Reducing Valve Series 50-165

The Gas Pressure Reducing Valve is an independent, heavy-duty, spring loaded diaphragm valve, providing an automatically regulated output and a positive manual shut off.

  • Chlorine Capacity, Maximum: kg/hr 15
  • Sulfur Dioxide Capacity, Maximum: kg/hr 12
Learn More
Gas Pressure Reducing Valve Series 50-185

Gas Pressure Reducing Valve Series 50-185

The Series 50-185 Gas Pressure Reducing Valve (GPRV) is a spring-loaded, diaphragm operated valve used in gas-handling systems which reduces varying gas pressure to a desired regulated pressure and maintains within close limits.

  • Chlorine Capacity, Maximum: kg/hr 200
  • Sulfur Dioxide Capacity, Maximum: kg/hr 180
Learn More
Pressure Type Changeover Modules with CCU

Pressure Type Changeover Modules with CCU

Evoqua offers various automatic changeover modules to ensure an uninterrupted and unattended changeover to a fresh gas supply when the on-line supply is exhausted.

Learn More
Series 50-200 Evaporator

Series 50-200 Evaporator

The Wallace and Tiernan® Evaporator Series 50-200 is an electrically heated, immersed tank-type heat exchanger. It is necessary wherever the required rate of gas withdrawal cannot be satisfied by direct connection to multiple containers

Learn More
Vacuum Type Remote Switchover

Vacuum Type Remote Switchover

Remote vacuum switchover unit which ensures uninterrupted chlorine dosing by delivering a continuous supply

  • Chlorine Capacity, Maximum: kg/hr 20
  • Sulfur Dioxide Capacity, Maximum: kg/hr 20
Learn More
Clear All

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 installtions 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.