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  • GTT MARK III FLEX system receives AIP from DNV
    édité le 29/06/2011 - Plus de news de "GTT" - Voir la fiche entreprise de "GTT"


GTT MARK III FLEX system receives AIP from DNV
GTT has completed an innovation program on its Mark III membrane containment system in order to offer ship-owners more operation flexibility with their LNG carriers.

The new MARK III Flex offers an increase in the resistance of the insulation to sloshing loads, an improvement in the boil off rate or a combination of the two.

On the one hand, the improvement in the resistance has been obtained by increasing the
foam density from 130 to 210 kg/m3 thereby providing higher compressive strength. This will allow greater flexibility in terms of tank filling levels.

On the other hand, the thickness of the insulation panel can be increased from 270 up to 400 mm, thereby reducing the Boil-Off Rate down to 0,1% per day This replies to the market evolution of propulsion systems which require less feed gas.

An extensive qualification programme has been completed to verify the behaviour of MARK III Flex, including:

1- Static and fatigue tests

2- Panel Bending tests

3- Impact tests

4- Material tests

5- Finite element analyses and

6- Mock-up tests performed at Geoje Shipyard with our partners from SHI

On this occasion, the GTT President, Philippe Berterottière, declared:

“In order to reflect the current needs of ship-owners and offshore operators, GTT has completed an innovation program on its Mark III membrane containment system. In doing so, GTT demonstrates the adaptability of the membrane technology to the evolving requirements of the Industry”.


The Approval In Principle (AIP) has been granted by DNV on June 24th after a thorough review of the test campaign described above.

GTT is an Engineering company, specialized in cryogenic engineering and the design of Containment systems for LNG Carriers and Land Storage Tanks.


Origine : Communiqué GTT

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