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On-site Energy Service / Co-generation

On-site Energy Service / Co-generation

On-site Energy Service / Co-generation

Under long-term contract, a customer is provided low-priced electric power and heat energy from cogeneration facilities built, owned and operated by Nippon Steel & Sumikin Engineering Co., Ltd. in the customer's plant.

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Offshore Pipeline

Offshore Pipeline

Offshore Pipeline

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Onshore Pipeline

Onshore Pipeline

Onshore Pipeline

Nippon Steel & Sumikin Engineering Co., Ltd. (NSENGI) has laid onshore pipeline in Southeast Asia and Russia's Sakhalin island. Laying technology and logistics expertise are indispensable in severe environments.

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Natural Gas Pipeline in Dedicated Shield

Natural Gas Pipeline in Dedicated Shield

Natural Gas Pipeline in Dedicated Shield

NIPPON STEEL & SUMIKIN Pipeline & Engineering Co., Ltd. has achieved outstanding results on pipelines for gas and liquids, including those constructed in dedicated shield tunnels under major roads, on the seabed, in mountainous areas, and elsewhere.

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Onshore Pipelines

Onshore Pipelines

Onshore Pipelines

Whether customers want to supply to urban areas, established residential suburbs, or new developments, Nippon Steel & Sumikin Engineering Co., Ltd. (NSENGI) possesses the pipeline technology to meet their construction needs for municipal gas supplies, natural gas, petroleum, and more.

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Receiving Terminals

Receiving Terminals

Receiving Terminals

These terminals adjust gas pressure and temperature so that power plants can receive natural gas from high-pressure gas pipelines. This is just one example of what can be done using Nippon Steel & Sumikin Engineering Co., Ltd. (NSENGI)'s expertise in energy plants.

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The Inspection Technology of Corrosion Protection for Buried Pipelines

The Inspection Technology of Corrosion Protection for Buried Pipelines

The Inspection Technology of Corrosion Protection for Buried Pipelines

Nippon Steel & Sumikin Engineering Co., Ltd. (NSENGI) is developing a corrosion diagnosis system for buried steel pipelines employing various sensing technologies.

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Steel Tunnel Method (STM)

Steel Tunnel Method (STM)

Steel Tunnel Method (STM)

The Steel Tunnel Method (STM) is a construction method to install a bit smaller horseshoe-shaped steel tunnel into the old tunnel and build a tunnel welded and unified with the old one. This method achieves the improvement of water distribution functions or strength in obsolete water tunnels with no need in new land purchase or in the demolition of existing facilities.

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PIP (Pipe in Pipe) Process

PIP (Pipe in Pipe) Process

PIP (Pipe in Pipe) Process

This method involves the insertion of a new steel pipe – which has a diameter that is one increment smaller than that of the existing obsolete pipe – into and through the inside of the other said pipe. This method requires no excavation and can ensure earthquake resistance and a watertight structure through the use of welded joints. If the existing pipes are bending-rolled and longitudinally seam-welded in situ, it is possible to use a pipe having a diameter approximate to that of the other said pipe.

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INS (Insituform) Process

INS (Insituform) Process

INS (Insituform) Process

This method involves the formation of a strong resin pipe within the existing obsolete pipe by inverting or pulling-in. Using a manhole or a small pit, installation can be completed within a short time, and it can be applied not only to round shapes, but also egg, oval, horseshoe, square, or other shapes.
"INSITUFORM® is a trademark of Insituform Technologies, Inc."

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Circulating Water Piping

Circulating Water Piping

Circulating Water Piping

Nippon Steel & Sumikin Engineering Co., Ltd. (NSENGI) performs path design, manufacturing and construction of pipes for the supply and discharge of sea water (circulating water) used to condense steam discharged from various generator turbines, such as those used in nuclear power plants and thermal power plants.

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Aqueducts

Aqueducts

Aqueducts

Aqueducts must be designed not only to be economical and functional, but also to fit the surrounding scenery. Nippon Steel & Sumikin Engineering Co., Ltd. (NSENGI) has conducted study, design, and construction of a variety of models of aqueducts based on the wealth of experience we have developed over many years.

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Natural Gas Liquefaction Base

Natural Gas Liquefaction Base

Natural Gas Liquefaction Base

By liquefying natural gas to make it easier to transport, Nippon Steel & Sumikin Engineering Co., Ltd. (NSENGI)'s natural gas liquefaction bases enable supply to remoted areas with small-scale demand.

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LNG Receiving Facility

LNG Receiving Facility

LNG Receiving Facility

LNG receiving facility is a plant to unload LNG from large-scale LNG tankers berthed at the pier. As this complicate plant adopts “unit construction method,” in which LNG receiving piping or boil-off gas (BOG) piping is shop fabricated and incorporated into the iron frame before delivery, it receives and installs the incorporated unit on site easily and smoothly. The LNG receiving facility makes remarkable contributions to shorter construction time and cost reduction.

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LNG Satellite Base

LNG Satellite Base

LNG Satellite Base

Tanklorries transport LNG in its liquefied form to deliver LNG from terminals to remote regions where supply via pipeline is economically unviable. These satellite bases receive LNG from trucks and send out vaporized gas.

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Low-temperature Tanks

Low-temperature Tanks

Low-temperature Tanks

Nippon Steel & Sumikin Engineering Co., Ltd. (NSENGI) fabricates all types of low-temperature tanks used to store LNG, LPG, and other low-temperature liquefied gases. We play a significant role in national stockpile projects for ensuring adequate reserves of LNG and other energy sources through our comprehensive design and construction engineering capabilities, which encompass high-quality steel materials, welding technologies, and tank systems.

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Decompression Systems

Decompression Systems

Decompression Systems

Nippon Steel & Sumikin Engineering Co., Ltd. (NSENGI) is helping to build an efficient supply network for natural gas through a large number of facilities that perform tasks such as adjustment of the pressure of high-pressure pipelines for medium- and low-pressure pipeline networks, adjustment of temperature, and odorization of gas.

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LPG Receiving Terminals

LPG Receiving Terminals

LPG Receiving Terminals

Nippon Steel & Sumikin Engineering Co., Ltd. (NSENGI) has an extensive domestic history in LPG import terminals and shared stock terminals, including low-temperature tanks and large tanker sea berths using jacket structures.

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LNG Receiving Terminal

LNG Receiving Terminal

LNG Receiving Terminal

In addition to having an impressive track record in the construction of LNG receiving terminals, Nippon Steel & Sumikin Engineering Co., Ltd. (NSENGI) has promoted pioneering initiatives such as the establishment of Japan's first LNG transport model using coastal tankers.

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Coastal LNG Tanker Loading Facility

Coastal LNG Tanker Loading Facility

Coastal LNG Tanker Loading Facility

In the facility capable of loading in just six hours from arrival to departure, LNG can be shipped using coastal LNG tankers with the 1,000-ton class. This is an economical method of transporting LNG around Japan.

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On-site Energy Service / Co-generation

On-site Energy Service / Co-generation

Offshore Pipeline

Offshore Pipeline

Onshore Pipeline

Onshore Pipeline

Natural Gas Pipeline in Dedicated Shield

Natural Gas Pipeline in Dedicated Shield

Onshore Pipelines

Onshore Pipelines

Receiving Terminals

Receiving Terminals

The Inspection Technology of Corrosion Protection for Buried Pipelines

The Inspection Technology of Corrosion Protection for Buried Pipelines

Steel Tunnel Method (STM)

Steel Tunnel Method (STM)

PIP (Pipe in Pipe) Process

PIP (Pipe in Pipe) Process

INS (Insituform) Process

INS (Insituform) Process

Circulating Water Piping

Circulating Water Piping

Aqueducts

Aqueducts

Natural Gas Liquefaction Base

Natural Gas Liquefaction Base

LNG Receiving Facility

LNG Receiving Facility

LNG Satellite Base

LNG Satellite Base

Low-temperature Tanks

Low-temperature Tanks

Decompression Systems

Decompression Systems

LPG Receiving Terminals

LPG Receiving Terminals

LNG Receiving Terminal

LNG Receiving Terminal

Coastal LNG Tanker Loading Facility

Coastal LNG Tanker Loading Facility

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