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Chlorine Gas Disinfection Recirculation

MAK Water’s Chlorine Gas Disinfection Recirculation (CGDR) Plants are designed to automatically maintain the correct amount of free chlorine in a potable water storage tank, in accordance with Australian Drinking Water Guidelines (ADWG). The standard treatment process includes a recirculation pump to turn over the contents of the potable water storage tank twice in a 24 hour period, an inline chlorine analyser which monitors residual free chlorine and a dosing system to automatically dose chlorine gas as required.

The system components are sized to suit the potable water storage tank and daily water usage. Options are provided for duty standby recirculation and dosing systems to improve plant reliability. MAK Chlorine Gas Disinfection Plants are available as skid mounted, or be manufactured into a purpose built container, insulated and air conditioned.

If you have specific requirements, contact us about our custom water disinfection systems.


Potable Water Storage Tank25100250500100025005000
Free Chlorine Residual (target)mg/L0.2 ~ 2 (as per Australian Drinking Water Guidelines ADWG)
Raw Water Temperature°C15 ~ 35
Ambient Design Temperature°C5 ~ 35 (15 ~ 30 for insulated containerised system)
Feed Water Inlet PressurekPa> 15 (flooded suction from tank)
Recirculation Pump Flow Ratem³/hr2.088.3320.8341.6683.33208.33416.66
Recirculation PressurekPa100 ~ 200
Power Supply-AC 240V, 1 phase, 50Hz or AC 415 V, 3 Phase, 50 Hz
Power Consumption (approx.)kW11.
Container Sizeft20


✓= Standard Supply o = Optional Supply - = Not Applicable

Skid Mounted Plant
Recirculation Pump
Chlorine Dosing System
Amperometric Chlorine Analyser
Space for uninstalled 70kg gas cylinder
Alarm Signal Output for Client Interface
PLC Control System with HMI
Containerised System, c/w A/C & Lightsooooooo
Container Non-slip Floor Coatingooooooo
Container Insulation (walls & ceiling)ooooooo
Duty Standby Recirculation Pumpsooooooo
Duty Standby Dosing Systemooooooo
Safety Shower & Eyewash Stationooooooo
Premium Instrumentation Packageoooooo



InstrumentationStandard PackagePremium Package
Pressure Gauge (recirculation pump discharge)
Pressure Switch (recirculation pump discharge)
Amperometric Chlorine Analyser (4-20mA)
Gas Cylinder Electronic Scale (with Bracket)
Chlorine Gas Leak Detector-
Automatic Shutdown on Leak Detection-
Pressure Transmitter (4-20 mA)-
Data Logger (residual chlorine)-
Remote Monitoring & Control Capabilities-

Disclaimer: MAK Water is continuously updating and improving its products and services, so please contact us for more detailed information or to confirm specifications. MAK Water takes no responsibility for any errors resulting from the use of information contained within this document.