Applications on work boats and special vessels

Evac has thousands of references for different types of work boat and special vessels, including support vessels, exploration vessels, ice breakers, and hospital ships.

Our applications in work boats and special vessels

Evac has thousands of references for different types of work boat and special vessels, including support vessels, exploration vessels, ice breakers, and hospital ships. These vessels have varying needs and operational conditions, as well as limited opportunities for service and maintenance, so we focus on simple and reliable construction.

Our global service network covers 70 countries across six continents. Through this we offer support, spare parts, and service – wherever you travel.

Our comprehensive offering includes solutions sold under well-known HEM and Cathelco brands.

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A versatile offering

Our large and varied offering meets the different needs of our customers, right from vessel construction.

Our systems meet the strictest International Maritime Organization (IMO) environmental regulations, and can also be operated in Environmentally Sensitive Sea Areas (ESSAs) and Special Areas (SAs). Our wastewater treatment membrane bioreactors are already equipped with nutrient removal, which will soon be required in Special Areas like the Baltic Sea.

One provider for all systems

Thanks to our wide system range, you can purchase all your vacuum collection, wastewater, ballast water, freshwater and waste management, marine growth prevention, and corrosion protection systems from one provider. This simplifies the shipbuilding process as well as equipment use, control, and maintenance.

Our vacuum collection systems save water and improve installation efficiency, with flexible piping designs. We are the only supplier with expertise in vacuum collecting both wastewater and food waste. Using one supplier simplifies maintenance and reduces inventory costs, as spares are interchangeable.

Our offering also includes compactors and densifiers for reducing the volume of recyclable waste aboard vessels. These products will help you meet the IMO’s MARPOL Annex V requirements. Our water treatment units turn seawater into process, service, and drinking water.

Read about Evac Complete Cleantech Solution

Evac Evolution ballast water management system

The Evac Evolution ballast water management system (BWMS) operates effectively in marine, brackish, and freshwater and has been specified for a range of ships including workboats and special vessels.

Evac Evolution units are available with capacities ranging from 34 m3/h to 1,500 m3/h, and the equipment can be supplied skid-mounted or in modular form to simplify retrofits where space is tight.

As an example, a 250 m³/h system was supplied for a bunkering tanker in which the height between decks was a major factor in the design of the system provided. In view of the height restrictions, the filter unit and the UV reactor were positioned horizontally on the skid. This will allow the UV lamps to be easily removed if maintenance is required.

In turn, smaller 60 m³/h systems have been supplied for a range of fishing vessels. The Evac Evolution system is completely chemical-free, which is a distinct advantage on any vessel where food products are handled or stored.

Marine growth prevention systems

By miniaturizing our control panels and anodes, we have brought the benefits of pipework antifouling technology to a wide variety of smaller craft, including offshore supply vessels, workboats, small ferries, and tugs.

Many of these vessels operate continuously within inshore waters where there is a much higher risk of biofouling. Considerable savings in fuel usage and maintenance costs can be achieved by fitting our Cathelco marine growth prevention system (MGPS) to eliminate blockages in seawater lines serving engine cooling systems.

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Hull corrosion protection systems

Our impressed current cathodic protection (ICCP) systems, developed by Cathelco (part of Evac Group since 2018), are an increasingly popular and cost-effective way of protecting the hulls of smaller vessels against corrosion, whether they are made from steel or aluminum.

In the past, many smaller vessels would have been protected with sacrificial anode systems, but with the rise in the cost of zinc and aluminum anodes (which are consumed quickly and require regular replacement) the overall cost difference between this and an ICCP system is negligible.

A major advantage of ICCP systems is that they require very little maintenance, with an anode life of approximately 15 years. Also, the performance of sacrificial anodes will decline over time, whereas an ICCP system will continue delivering reliable and controlled protection throughout its lifetime.

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