ballast water treatment

Get to know Alfa Laval PureBallast 3

Ballast water treatment should be simple. With the right solution for your vessel, it can be. Alfa Laval PureBallast 3 is chemical-free, compact and easy to use, and it has the flexibility to meet your specific needs. From getting it on board to keeping you compliant over time, we take the hassle out of meeting regulations.

Total solutions for your needs

Ballast water treatment protects the environment, but choosing a system is all about you. You want the freedom to sail as you always have – so that you can keep business moving and customers happy. It’s why Alfa Laval provides more than just technology. You can count on us for everything around PureBallast 3, from helping you plan and finance your retrofit to providing service and support over time. In short: total solutions.

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Which PureBallast 3 system?

PureBallast 3 is the third generation of Alfa Laval’s chemical-free UV treatment technology. Today it’s available in a range of systems, so that you can choose the right one for your needs. All of them have IMO revised G8 and U.S. Coast Guard type approvals.


PureBallast 3 Compact Flex

For ballast water flows of 32–1000 m3/h PureBallast 3 Compact Flex is the ideal choice for most vessels. Delivered as loose components, it maximizes space savings and installation flexibility.

  • Complete installation freedom
  • Minimized system footprint


PureBallast 3 Compact

For ballast water flows of 32–300 m3/h PureBallast 3 Compact is a convenient, skid-mounted solution for smaller ballast water flows. Installation is easy due to the small footprint and minimized pipework.

  • Skid-mounted, plug-and-play module
  • Flexibly placed electrical cabinet


PureBallast 3 Std

For ballast water flows of 250–3000 m3/h PureBallast 3 Std provides the widest range of reactor configurations and technical opportunities on vessels with non-hazardous environments.

  • Maximum range of operation and component placement
  • Up to 6000 m3/h with dual systems


PureBallast 3 Ex

For ballast water flows of 250–3000 m3/h PureBallast 3 Ex gives vessels with explosive environments redundant safety features and high flexibility. The power supply can be placed outside the hazardous zone.

  • ATEX and IECEx, Zone 1, IIC and T4
  • Up to 6000 m3/h with dual systems

Adapted flow for bulkers

If your vessel is a bulker, you probably load cargo at twice the rate you unload it. If so, you deballast at twice the speed of ballasting. That gives you an opportunity to save. A PureBallast 3 bulker-fit configuration adjusts the UV reactor and filter capacities, so that you install only what a bulker needs for compliance. Not only does it create a smaller system footprint, it also lowers your investment and operating costs.

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Deckhouses for tankers

If your vessel is a tanker, ATEX requirements might not be your only issue. If you use submersible cargo pumps, you probably don’t have a pump room or much other space for a ballast water treatment system. Fortunately, Alfa Laval can provide a deckhouse, so that you can install topside. More than just a container, a deckhouse is a protective, insulated solution – with an integrated booster pump option, to help out if your existing ballast water pumps aren’t strong enough.

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