Welded pipe fittings for LNG transport vessels

basic information

For vessels exceeding 100 tons in the main general register, their performance (including structure and equipment) must be inspected and certified (approved) by a classification society to meet certain standards. This inspection includes welded pipe fittings among the items subject to inspection (by piping systems). We supply reliable welded pipe fittings approved by the specified classification society. We have the technical capabilities and experience to meet various classification societies, including the Nippon Kaiji Kyokai (NK), American Bureau of Shipping (ABS), Lloyd's Register (LR), Bureau Veritas (BV), and others, and we respond to a wide range of additional requests beyond the specifications required by the classification societies to meet customer needs. In recent years, in response to the shale gas revolution in the United States, there has been a significant demand for LNG (liquefied natural gas) transportation, and we have received numerous requests for welded pipe fittings for LNG vessels from various companies. During the transportation of LNG, it is necessary to compress the volume to 1/600 and maintain it below -162°C. Additionally, due to the offshore transportation, there are requirements for higher reliability in the piping related to this equipment, considering factors such as swaying and uneven loading. Our company continues to supply highly reliable products by evolving based on the achievements and experience we have cultivated over many years.

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Applications/Examples of results

We have a track record of supplying to various fields including nuclear power plants, thermal power plants, LNG plants, petrochemical plants, gas pipelines and stations, shipbuilding plants, and others. When assembling plant piping under the Electricity Business Act and the Gas Business Act, welding work between components must be carried out in accordance with the prescribed welding construction methods. Generally, it is necessary to order the production of joints and piping welding from respective manufacturers that have acquired the construction methods. In contrast, at Benkan Kiko, by centralizing the manufacturing of pipes and joints as well as prefabrication work, we can unify the necessary regulatory planning documents and inspection applications related to pipes, joints, and piping prefabrication, as well as management and inquiry contact points. Additionally, for products subject to the Electricity Business Act, it is also possible to reduce the number of pressure tests required by regulations, which can lead to cost savings.