Evac gains new G8 approval for Evolution ballast system

Malcolm Latarche
ShipInsight

14 May 2019


Evac’s Evolution ballast treatment system has been granted new IMO Type Approval. The system was designed and manufactured by Cathelco, which has been part of Evac Group since May 2018.

The system has been successfully tested to the latest IMO requirements which encompass the revised G8 standard and the recently introduced Ballast Water Management Code which has much more robust definitions of the design limitations of the equipment.

Guides: Ballast Water Treatment

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“We are delighted to have achieved IMO Approval to the latest standards. It means that customers can have complete confidence in buying our equipment because we have had to prove that our design limitations are accurate and that the system operates reliably in real world conditions”, said Lauri Laaksonen, Chief Technology Officer, Evac Group. The news comes at a time when the Evac Evolution BWMS is also well on its way to attaining US Coast Guard type-approval having been on the pending list since November last year. This is the second time around the approvals course for Cathelco which received IMO Type Approval for their Mk1 BWMS in May 2014, followed by USCG AMS Approval six months later.

The latest test program was conducted at the MEA facility in Holland with Lloyd’s Register acting as the independent laboratory working under the Flag State regulations of the UK’s Marine & Coastguard Agency.

When the US Coast Guard rejected the IMO’s ruling on the acceptability of ‘viable’ life forms (able to reproduce) in favour of ‘non-viable’ (dead) and it became apparent that this would become the universal standard, Cathelco redesigned the system and embarked on another round of testing. “It was the right decision because we knew that our system would be designed to where legislation was heading and would be flexible enough to comply with future requirements”, Robert Field, Cathelco technical director, explained.

Those requirements are now contained within the IMOs Ballast Water Management Code which subjected equipment to greater scrutiny in terms of realistic ‘scaling’ in relation to flow rates, sediment loads on filters and closer examination of the efficacy of the system in comparison with holding times. “Our system has met all of these criteria without compromise,” said Field. “We set the objective of achieving effectiveness down to 55% UVT in all salinities and we have adopted linear scaling which means that it will work on all types of vessels”, he added.