Subscribe options

Select your newsletters:


Please enter your email address:

@

News & Media

Latest ITER Newsline

  • Making remote handling less remote

    Over a wet and windy three-day period on the ITER site in November, around 90 representatives of the ITER Organization, the Domestic Agencies of Europe and Japa [...]

    Read more

  • The framework for sharing ITER intellectual property

    In signing the ITER Agreement in 2006, the seven ITER Members were agreeing not only to share in the costs of constructing and operating the ITER facility, but [...]

    Read more

  • Wendelstein achieves ultra-precise magnetic topology

    A recent article in the online journal Nature Communications confirms that the complex topology of the magnetic field of Wendelstein 7-X—the world's largest ste [...]

    Read more

  • The Matrix, rigid and fluid

    A fast-growing array of structures and buildings has been emerging across the ITER worksite platform under the control and supervision of the European Domestic [...]

    Read more

  • By road, river and sea

    They travelled by road from the Air Liquide factory near Grenoble, sailed down the Rhône River from Lyon and entered the Mediterranean to the east of Fos-sur-Me [...]

    Read more

Of Interest

See archived articles

Inspecting drain tank manufacturing in the US

-R.A.

The largest drain tanks—nine and a half metres high and more than six metres in diameter—can hold over 227,000 litres (60,000 gallons) of water. (Click to view larger version...)
The largest drain tanks—nine and a half metres high and more than six metres in diameter—can hold over 227,000 litres (60,000 gallons) of water.
Across the river from Philadelphia, in the industrial suburb of Camden, New Jersey (US), manufacturing of the ITER drain tanks has begun at the Joseph Oat Corporation. Thick stainless steel plates are being welded and will soon be formed into cylinders—the largest nine and a half metres high and more than six metres in diameter, capable of holding over 227,000 litres of water.

Procured by the US Domestic Agency, the drain tanks will be installed in the "basement" (level B2) of the Tokamak Building, ready to collect the water from the cooling circuits in case of leaks or accidental situations.

Because the ITER drain tanks fall into the category of "Safety Important Components" (SIC), the ITER Organization must ascertain that manufacturing processes and procedures meet the safety requirements established by French nuclear safety regulations and, specifically, the August 1984 Quality Order (Arrêté Qualité).

Installed in the ''basement'' of the Tokamak Building, the five drain tanks will collect the water from the cooling circuits in case of leaks or accidental situations. (Click to view larger version...)
Installed in the ''basement'' of the Tokamak Building, the five drain tanks will collect the water from the cooling circuits in case of leaks or accidental situations.
"As nuclear operator, it is our responsibility to control that this set of regulations is applied throughout our whole chain of contractors and suppliers," explains Joëlle Elbez-Uzan, acting division head for Nuclear Safety, Licensing & Environmental Protection at ITER.

An important point at this stage in the manufacturing process is to make sure that the tanks' stainless steel is not exposed to pollution from carbon. Exposure to carbon could cause corrosion, which would put at risk the required leak-tightness of the tanks.

In Camden, Joëlle and Safety Control Section Leader Lina Rodriguez-Rodrigo noted with satisfaction that a specific "ITER zone," clearly separated from other production and using specific tooling, had been organized within the factory.

Joëlle and Lina's sojourn at Camden was short (two days) but fruitful. "The 1984 Quality Order is well implemented," says Joëlle. "US ITER has done a great job in propagating its requirements down the whole chain of contractors and they have a permanent representative in the factory we visited. For us, it is a very strong guarantee."

The Camden inspection was part of the annual audit program that ITER Safety, Quality & Security Department submits for approval to the ITER Director-General. One other inspection has already been performed this year on vacuum-vessel manufacturing in Korea; next on the agenda are the fast-discharge units, whose fabrication has begun at the Efremov Institute in Russia.


return to the latest published articles