Bluestone completes air scrubber retrofit on passenger vessel

Some of the piping necessary for the purifier installation (Source: Bluestone)
Bluestone has completed the engineering, procurement and construction (EPC) retrofit of two advanced air quality systems on board of a large passenger vessel, with the project carried out both during voyage and in drydock.
The installation took over five months at sea and an additional 25 days at a repair yard. Work included 3D scanning, engineering, and the development of technical drawings, as well as the supply and installation of approximately 400m of GRE piping, 300m of PE100, and stainless SMO piping.
Two seawater strainers (DN900) and sea chest/overboard valves (DN700 and DN500) were also installed. Electrical work involved the laying of about six kilometres of power and control cables, including 1,000m of main power supply cable.
Structural elements required the supply and installation of 35 tonnes of steel, including the construction of a sea chest and overboard discharge while the vessel remained in operation.
Bluestone confirmed that the retrofit was completed without any impact on the vessel’s ongoing service. The company acknowledged the cooperation of the ship’s crew and all project stakeholders.