UV-Based BWMS · Ballast Water Treatment Systems
The OceanGuard Ballast Water Management System (HMT-50~4000) from Headway Technology Group uses UV-based technology to treat ballast water, preventing invasive species and meeting IMO D-2 standards.
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| UV lamp replacement | per the manufacturer's rated lamp life, commonly in the order of 8,000-12,000 hours for medium-pressure UV systems - confirm the HMT-series figure against Headway's manual |
|---|---|
| Quartz sleeve cleaning/inspection | every 3-6 months or on a transmittance alarm, more often in fouling-prone or turbid water |
| UV sensor calibration | annually or per manufacturer's schedule |
| Backwash filter inspection/seal replacement | annually or per manufacturer's schedule |
| System commissioning/functional test | annually, as part of the IMO D-2 compliance and BWMS Code survey regime |
Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.
| UV transmittance/sleeve fouling | treat as needing cleaning once the system's own UV-intensity sensor reports below the manufacturer's alarm threshold, not by visual judgement alone |
|---|---|
| Backwash filter screen | renew on physical damage or once backwash no longer restores design flow, per the manufacturer's condition criteria |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Ballast Water Management Systems are subject to survey under the BWM Convention and BWMS Code, including the relevant IMO (and, where applicable, USCG) type approval. Commissioning testing and periodic renewal survey are required to support the International Ballast Water Management Certificate, and records of D-2 compliant operation, alarms, and any bypass events must be retained in the Ballast Water Record Book for review at survey and PSC inspection.
Estimated lifetime: UV lamps are a consumable, typically rated in the order of 8,000-12,000 hours before replacement; the treatment skid (pump, filter, UV chamber, control system) is normally designed for the working life of the ballast system, in the order of 15-20 years, with periodic component renewal - confirm the specific HMT-series figures against Headway's documentation.
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