Evac's UV BWMS obtains IMO G8 type approval

The Evac Evolution Ballast Water Management System (BWMS) was designed and is manufactured by Cathelco, which has been part of Evac Group since May 2018. The Evac Evolution Ballast Water Management System (BWMS) was designed and is manufactured by Cathelco, which has been part of Evac Group since May 2018.
Industry Database

Evac’s Evac Evolution has become the latest system to be type approved under revised IMO guidelines.

Evac was issued with an updated IMO type approval certificate in line with the new guidelines by Lloyd’s Register, acting on behalf of the UK’s Marine & Coastguard Agency. The test program was conducted at the MEA facility in the Netherlands.

“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 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.

The robust G8 guidelines are intended to be more in line with stringent US Coast Guard requirements. They were called for after some systems type approved according to the original guidelines subsequently failed to meet the discharge standards when subjected to additional tests or evaluation.

“Our system has met all of these criteria without compromise,” said Robert Field, Cathelco technical director. “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.

The Evac Evolution BWMS, based on a combination of filtration and UV technology, incorporates a unique feedback ‘loop’ based on the measurement of UV transmission which determines precise dosage. It automatically adjusts to different seawater qualities in harbours and estuaries ensuring the optimum UV dosage is applied at all times, but saving on power whenever possible. Effective in fresh, brackish and seawater it is available in capacities from 34m3/h to 1,500m3/h in a single unit. Systems can be supplied skid mounted or in modular form for easier installation in confined areas.

“At an early stage, we opted for UV transmission as the parameter for determining UV dosage. I think it is only a matter of time before this becomes a mandatory requirement and in this sense, customers who buy an Evac Evolution system are already ahead of the game”, Robert concluded.

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