AQUARIUS UV BWTS
The Wärtsilä Aquarius UV BWTS is a fully automated ballast water treatment system that combines a 40 µm back‑wash filter with a self‑cleaning quartz‑tube UV reactor to achieve IMO D‑2 compliance.
Components & Design
Component data being added…
Technical Data
🤖 Ask about this model
One free question — answered like a marine engineer. No account needed.
Common failures & inspection points
Quarterly cleaning of quartz tubes, annual visual inspection of UV lamps, verification of UV intensity measurements by calibrated sensors, documentation of operating hours
Differential pressure sensor functional test (should automatically trigger backflush cycle at approx. 0.3 bar), visual inspection of filter element for damage/blockage, verification of differential pressure after backflushing (should reach < 0.1 bar)
Annual sensor calibration (preferably by manufacturer), metric verification of measured UV intensity against reference values, isolation test of sensor against environmental influence, verification of alarm thresholds and signal transmission
Verification of total residual chlorine (TRO) after treatment (must remain ≤ 0.1 mg/L), visual condition of EC cell for corrosion/wear, verification of static mixers for blockage, measurement of voltage ratios at EC electrodes
Functional test of automatic backflush valves (should respond reliably to sensor signal), visual inspection of all hydraulic lines and connections for leaks, verification of pump pressure regulator, flow rate verification against manufacturer specification
Verification of valid type approval certificates (IMO MEPC.300(72), USCG), control of ballast water record book with current entries, verification of conducted biological commissioning tests (required from 01.06.2022), verification of maintenance protocols and service records
Type-general inspection and maintenance points for this equipment category — not model-specific.
Service & Maintenance
Filtration + UV combination. UV lamp replacement at ~9000 hours.
Suppliers & Spare Parts
Direct links to manufacturer, datasheet, spare-parts portal and dealers — request access below.
📄 Request sourcing links & documentsCases, daily reports, timesheets and AI troubleshooting in the OceanSphere Marine app — free for 14 days.
Start free trial →Find manufacturers, repair shops and spare-part dealers in the Maritime Network — our global company directory.
Maritime Network →