DNV GL SOX SCRUBBER OVERBOARD PIPE FAILURE

Scrubbers are a relevant compliance option for many ships to meet the IMO Global Sulphur Cap 2020. DNV GL has for many years worked with owners and operators on scrubber installation and operation.

This casualty information focuses on the importance of selecting the correct design and appropriate materials for the scrubber overboard spool piece, the need for good workmanship as well as the need for regular inspections in order to avoid similar incidents occurring.

Course of events
A hole in the spool piece, the piece of piping between the SOx scrubber overboard valve and the ship’s hull (Figure 1), led to a large quantity of seawater entering the engine room.
Only with considerable difficulty did the crew manage to stop the water ingress and limit the damage to the engine room.