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Safety Elastopipe refit on

FPSO Trelleborg Offshore has installed its Elastopipe fire safety deluge system to replace the existing carbon steel pipework on seven modules of Maersk’s FPSO Ngujima-Yin. Trelleborg provided a complete survey, design, engineering, supply and installation package, as well as removing the old installation. The previous seawater deluge system on the

FPSO, which is located in the Vincent Field off Western Australia, had corroded over the two years since its installation. Te system needed constant maintenance, cleaning and testing, and a replacement was required to reduce the long-term cost of essential fire protection.

Paints and coatings A simpler way to a

smoother hull Continued research and development by UK-based International Paint, particularly in the area of adhesion mechanics, has resulted in a recent innovation to complement its popular Intersleek range. Te new Intersleek 7180 Linkcoat now allows access to fluoropolymer based Intersleek 900 and silicone based Intersleek 700 foul release technology, without the need and expense of full underwater hull blast cleaning. Specially designed for direct application over

existing traditional antifouling technologies, controlled depletion polymers and hybrid schemes in addition to SPC antifoulings, Intersleek 7180 Linkcoat can be applied directly followed by the full Intersleek scheme. Te combination is designed to significantly reduce the surface roughness of an existing antifouling system by over 70%, resulting in a smoother hull. Adhesion to and performance over a wide range

Trelleborg’s Elastopipe system under full scale test offshore. Te challenge with the installation was to replace

the existing fire protection throughout the FPSO modules without affecting the safety of the vessel as it continued output. According to Hans-Leo Hals, Elastopipe product manager: “Because Elastopipe is a synthetic rubber-based flexible piping system, it was installed without any welding or other hot work, such as high speed cutting, which could compromise the safety of the vessel.” Trelleborg claims Elastopipe offers a 30-year

minimum maintenance life for fire deluge and sprinkler systems, is highly resistant to impact and, compared with other pipe work materials which need regular inspection and maintenance, offers very low total life costs.

Contact Trelleborg Offshore Norway, Kalosjegata 15 3055 Krokstadelva, Norway. Tel: +47 32 23 20 00


of existing antifouling surfaces is provided by specialised dual-cure technology (DCT). An initial fast cure is claimed to provide excellent drying and barrier properties, while a secondary cure employing flexible polymer chemistry enhances system adhesion. Intersleek 7180 Linkcoat also fills in and levels out the rough surface of an existing antifouling to provide the basis for a smooth finish which reduces drag, improves vessel efficiency and reduces fuel consumption and associated emissions. International Paint claims significant cost savings

will also result. Compared to a full blast and full scheme application on the vertical sides of a typical VLC, savings could be over US$450,000, through shorter times in drydock and reduced surface preparation and application costs, the company states.

Contact International Paint, Stoneygate Lane Felling, Gateshead, Tyne & Wear, UK. Tel: +44 191 469 6111 www.

Ancillary equipment New tank cleaning

machines Alfa Laval has extended its tank cleaning equipment portfolio with two new tank cleaning machines, the Gunclean Toſtejorg i40 S and Gunclean Toſtejorg i40 D. Tese are specifically designed for use aboard

Shiprepair and Conversion Technology 4th Quarter 2010

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