The Davey Aquashield Centurion 3-Stage UV System delivers continuous clean, safe drinking water from rainwater tanks and bore water supplies. Combining Davey's proven three-stage filtration with powerful ultraviolet disinfection, this system destroys harmful micro-organisms — including E-coli, Cryptosporidium, Campylobacter and Giardia — without chemicals.
Completely assembled and ready for quick installation, the Centurion simply needs to be wall mounted and connected to your water supply.
Note: This system cannot remove dissolved metals, chemicals or algal toxins. Additional treatment is required for these contaminants.
Applications:
Ideal for small to medium homes requiring filtration and disinfection of rainwater tank or bore/surface water supplies (subject to water quality).
Key Features & Benefits:
- Three-stage filtration plus UV disinfection for comprehensive water treatment
- 316L stainless steel axial flow UV chamber — 10-year limited warranty
- 10,000-hour LP UV lamps — longest residential lamp life on the market
- Coated UV lamps for consistent UV output throughout lamp life
- Smart controller with tricolour LED status indicator and 4-digit lamp life countdown display
- Diagnostics, status warnings, and QR code links to replacement parts via smart controller
- High maximum operating pressure: 827 kPa (120 psi)
- Single manifold heads — no potential leaks between heads
- Special filter design with O-ring groove for fail-safe installation
- Splash-proof IP54-rated controller with constant current electronic ballast
- Ready for quick installation and use
Smart 3 Stage UV System Features:
- Fully RCM and Watermark certified
- Supplied pre-assembled, saving installation time
- High maximum operating pressure 827 kPa (120 psi), and single manifold heads meaning no potential leaks between heads
- 316L stainless steel, axial flow chambers allow for optimum efficiency plus lamp and sleeve service without the need to drain the water
- 10,000 hour lamps — the longest residential lamp life on the market
- Reverse flow capability allows for install versatility
Warranty:
- 10 years on stainless steel UV chamber
- 3 years on electronic controller
- 14 months on UV lamps, UV sensors, and filter housings
Understanding UV System Flow Rates
UV systems are rated according to the flow rate of water they can treat while delivering a specified UV dose. The higher the UV dose, the greater the level of UV treatment provided.
You may see three different flow rates listed for a UV system:
Drinking Water Standard Flow – 40 mJ/cm²
This is the flow rate at which the UV system provides a UV dose of 40 mJ/cm². This is the flow rate we recommend when the system is being used to treat drinking water, providing a higher level of UV treatment.
Nominal Flow – 30 mJ/cm²
This is the manufacturer's nominal rated flow at a UV dose of 30 mJ/cm². It provides a useful reference point when comparing UV system capacities.
Maximum Flow – 16 mJ/cm²
This is the maximum flow rate the UV system can process, but at this higher flow the UV dose is reduced to 16 mJ/cm². This should not be considered the appropriate flow rate for drinking-water applications, and is best for applications such as algae reduction, and clarification.
Which flow rate should I use?
For drinking water applications, we recommend sizing the UV system using the 40 mJ/cm² flow rate, NOT the maximum flow figure.
When choosing a UV system, it's important to consider the maximum flow your property could require at one time, not simply the average daily water use. A system that is too small may not provide the required UV dose when several taps or appliances are operating simultaneously.
If you're unsure which UV system is right for your property, contact WTS and we can help you select a system based on your expected flow rate and application.
