KBAL signs LOI for USCG approval

On the 23rd of May, Knutsen Ballast Water AS submitted the official letter of Intent (LOI) to the USCG thereby initiating the formal approval process towards a USCG type approval of the KBAL system. Lloyds will act on behalf of the USCG in this process, and was chosen by KBAL based on a thorough evaluation. The USCG type approval process is combined with a qualification process in accordance with the newly revised IMO Guidelines.

Even though we are not among the early movers in the formalization of our USCG Type Approval process, we see some great advantages in not having started the formal process earlier. We now can incorporate the recently released IMO revised G8 in the tests, and the previous uncertainty regarding the USCG detection method on algae is no longer present.


The KBAL BWT system is the only system available on the market that neither uses any kind of chemicals nor any filters. The system is type approved by DNV GL, Lloyds and ABS.

The pressure vacuum reactor working in combination with the vertical ballast water drop line ensures a sudden pressure reduction from the required 2 bar at the inlet of the P/V reactor, down to a pressure marginally above a perfect vacuum. This sudden pressure reduction eliminates, i.e. pulverizes the majority of the organisms. Any remaining algae or bacteria are effectively eliminated by the UV chamber mounted downstream on the P/V reactor.