Vacuum Collection Systems

The Wärtsilä Vacuum Collection Systems are shipboard sanitary-waste collection systems that transport sewage from toilets and other approved fixtures using vacuum rather than relying solely on gravity drainage. The system typically combines vacuum toilets or interface valves, vacuum piping, collection tanks, vacuum generation equipment and controls before sewage is transferred to the treatment or holding system. Vacuum collection reduces flushing-water demand and allows smaller-diameter piping and flexible routing compared with conventional gravity systems. It is a collection and transport system rather than the complete biological sewage treatment process, despite the broad sewage-treatment category in the supplied list. Reliable operation depends on maintaining airtight piping, functioning toilet/interface valves and stable vacuum generation. The exact tank volumes, vacuum set points, pipe layout and connected treatment equipment are vessel-specific; refer to the manufacturer documentation for the exact figure.