GTT’ Mark V Earns DNV GL General Approval

Maritime Activity Reports, Inc.

September 22, 2015

GTT, a designer of membrane containment systems for the maritime transportation and storage of liquefied natural gas (LNG), announced that its new containment system Mark V has been granted General Approval for Ship Application (GASA) by classification society DNV-GL.

 
GTT called the validation by DNV-GL of the Mark V technology a major step toward its commercialization following two cooperation agreements GTT signed during the first half of 2015 with the shipbuilders Hyundai Heavy Industries and Samsung Heavy Industries to confirm the industrialization of the system. 
 
After some years of research and development, the Mark V technology is an optimized version of the Mark III system and its sister Mark III Flex. As with the Mark III and Mark III Flex, the Mark V technology is composed of a double insulation with reinforced polyurethane foam. The new system also includes an innovative nickel-steel alloy corrugated secondary membrane and offers significant improvement of the warranted daily boil off rate. 
 
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