International classification society DNV GL has granted General Approval for Ship Application (GASA) to the Mark V LNG containment system designed by France’s Gaztransport & Technigaz (GTT).
GTT says that the validation of the Mark V technology by DNV-GL is a major step towards its rapid commercialization following two cooperation agreements GTT signed during the first half of 2015 with South Korean shipbuilders Hyundai Heavy Industries and Samsung Heavy Industries.
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 a nickel-steel alloy corrugated secondary membrane and offers significant improvement of the warranted daily boil off rate, GTT says.
Philippe Berterottière, Chairman and CEO of GTT, said: “This General Approval by DNV-GL marks our innovation effort at the service of the LNG Industry and is the recognition of the reliability of GTT technologies. This milestone will give shipowners further confidence in the performance of Mark V.”