System Design

Evac has over 35 years of experience in designing, manufacturing and marketing environmentally friendly waste and waste water collection and treatment solutions for the marine industry.  Throughout the years Evac’s engineers, designers, and technicians have developed professional and high-quality technologies, resulting in environmentally friendly solutions for the shipbuilding industry. 

Leading shipyards and ship owners have come to know Evac as a pro-active and reliable business partner.

Waste collecting and treatment equipment is extremely important to employee and customer satisfaction on-board – they deserve to have Evac.  Our highly motivated, friendly and skilled team is ready to serve you and help you with any marine waste and waste water related questions!

Evac produces the widest range of vacuum toilets, vacuum collecting components and waste and waste water treatment systems to fit any vessel, regardless of size.

By selecting the Evac Total Concept – the whole waste water chain – from one reliable and proven partner, Evac, your satisfaction is guaranteed.  In addition, your fleet can rely on the expertise of our lifelong after-sales...

Evac has over 35 years of experience in designing and calculating the capacity of vacuum systems.   Contact us for detailed information and an analysis of your needs.  The following information is offered as a general overview.

Vacuum system capacity is normally calculated according to a system's “peak hour”.  This is a one hour period during a day that toilet usage is at its highest...

Evac is the global leader in designing and sizing marine waste water treatment systems.  Contact us for detailed information and analysis of your needs.  The following information is offered as a general overview. 

Waste water treatment plants are sized on the basis of biological oxygen demand over a 5 day period (BOD5 load) and the flow rates of the waste water to be treated.  These...

For years, Norsk Inova has supplied solid waste treatment systems for the cruise ship industry.  This experience has been further developed within the Evac organisation since Evac’s acquisition of Norsk Inova in 2007.  The solid waste treatment design is applied either for retrofit into existing vessels or fitting into new builds.  Our designs always meet all classification society...