Introducing Alfa Laval PureBallast 3 Ultra: The Future of Ballast Water Management


Alfa Laval PureBallast 3 Ultra is the latest ballast water management system (BWMS) leveraging the proven PureBallast 3 technology. This new system offers enhanced performance, power savings, and simplified installation, with deliveries starting in Q3 2025.

Evolution of UV Technology

As the retrofit market wanes, many BWMS manufacturers face uncertainty or have exited the market. In contrast, Alfa Laval continues to innovate with its UV technology, meeting the current and future needs of shipowners and shipyards with PureBallast 3 Ultra.

Improved Performance in Challenging Waters

For shipowners operating in sediment areas, PureBallast 3 Ultra provides peace of mind with its enhanced performance. The new filter design minimizes clogging risks and includes a faster gear motor for improved backflushing efficiency, which can also be retrofitted to existing PureBallast 3 systems.

Energy Efficiency and Installation Ease

PureBallast 3 Ultra supports higher flow rates while using less energy than competing systems, achieving nearly 20% power reduction for certain flows. It features an expanded range of UV reactor sizes and integrates components like the Cleaning-In-Place (CIP) unit and pressure monitoring device into the UV reactor module. This design flexibility and smaller footprint facilitate installation for ballast water flows of 42–3000 m3/h, including Ex requirements.

Customer-Centric Design

“We’ve optimized PureBallast 3 Ultra based on customer feedback,” says Tobias Doescher, Head of Global Sales, Business Development, and Marketing at Alfa Laval PureBallast. The system offers flexibility, simplicity, and security for both shipbuilders and operators.

Future-Proofing with Alfa Laval

Customers can rely on Alfa Laval’s extensive resources and expertise. With production in Qingdao, China, Alfa Laval ensures smooth deliveries and robust support starting in Q3 2025. Shipowners also benefit from Alfa Laval’s global network and 24/7 Service & Support. PureBallast 3 Ultra includes a field gateway for PureBallast Connect, a subscription-based digital service portal aimed at maximizing uptime and optimizing fleet operations.

“Alfa Laval continues to lead in ballast water management,” says Peter Sahlén. “PureBallast 3 Ultra provides a future-ready solution backed by a reliable supplier.”

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Source: Alfa Laval India