Stern Tube Sealing: Hydrex Use 'Mobdocks'

Press Release
Wednesday, February 06, 2013
Mobdock: Photo credit Hydrex

Hydrex flexible Mobdocks (mobile mini-drydock) enables underwater repairs that keep vessels out of drydock.

Hydrex has carried out repairs and replacements on all types of seals on site, and in most cases underwater, for a number of years now. This helps owners to extend their vessel’s drydock interval and eliminates the loss of time and production brought about by drydocking. Using the new generation of Hydrex flexible mobdocks, fast response to any emergency call is guaranteed to locations around the world from the various Hydrex offices.

Since Hydrex divers first carried out an underwater face seal replacement 15 years ago, they have constantly worked to advance the techniques used for all kinds of seal repairs. This led to the development of its unique flexible mobdock (mobile mini drydock) technique which allows Hydrex teams to create a dry underwater working environment around a seal assembly. The technique made it possible to replace stern tube seals in their entirety underwater.

The technique has won one of the prestigious Lloyd’s List Awards on two occasions. Hydrex has now received full class acceptance from several major classification societies to perform underwater stern tube seal repairs.

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