Underwater Shaft Seal Renewal- Here There and Everywhere!


Subsea Global Solutions has been very busy providing support to our clientele in all locations around the world. In the past couple of weeks a shaft seal has been replaced on a cruise vessel while it was cruising on its Mediterranean itinerary.  Without taking the vessel out of service and with only minimal enhancements to the vessel’s itinerary the affected face seal as well as lip ring shaft seal system was exchanged in a dry hyperbaric environment underwater.

Subsea Global Solutions Europe performed the preparatory work on the vessel by removing the rope guard in a safe and efficient manner.  By using a carbon arc gouging system, the existing welds securing the rope guard to the vessel were gouged away and the rope guard was released from the vessel with no alteration.  Rigging pad eyes and specialized adapter rings were fabricated so that once the vessel arrived at its location for shaft seal exchange all was prepared and ready to go.

Subsea Global Solutions then mobilized additional trained and OEM certified diver / technicians from other Subsea Global Solutions locations located on East Coast of North America, West Coast of North America and the Caribbean.  As this was a very specialized seal with service being carried out by the OEM themselves, only OEM trained and certified personnel were allowed to perform this work.  Around the clock operations proceeded for 45 hours in order to exchange the specialized carbon faced seal ring, sealing seat and bond the necessary lip rings inside SGS’ specialized Flexible Hyperbaric cofferdam, the Transhab.  Since this sealing is so specialized and installation must be done in a controlled manner, Subsea Global Solutions certified their underwater exchange process together with their OEM partner last year through research and development performed both at the OEM’s production facility and at Subsea Global Solutions training and development center in Europe.

DSC01708With the shaft seal successfully exchanged within the required time frame, the vessel returned to its cruise through exotic Mediterranean locations assured that it’s shaft seal is guaranteed to provide years of good service.  Our commitment to excellence shines brighter and brighter as we continue to remain the industries gold standard for underwater service solutions.

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