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News & Media

Latest ITER Newsline

  • Fusion world | Japan and Europe inaugurate largest tokamak in the world

    It was 6:00 a.m. in La Bergerie, a former sheep barn located a few kilometres from ITER in the vast Château de Cadarache domain, and that had been converted [...]

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  • Stakeholders | ITER Director-General meets Prime Minister Kishida

    In Japan, the prime minister lives and works at the Prime Minister's Official Residence in central Tokyo, just a few blocks from the National Diet Building and [...]

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  • Image of the week | Season wrapping

    Although the travel distance is short, barely exceeding one hundred metres, the transfer of vacuum vessel sector #8 from the Assembly Hall, where it is presentl [...]

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  • In memoriam | Bernard Pégourié, physicist and mountaineer

    The worldwide fusion community mourns Bernard Pégourié, of France's Institute for Magnetic Fusion Research (CEA-IRFM), who passed away on 25 November following [...]

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  • COP28 | Fusion is making a splash

    The 28th United Nations Climate Change Conference, COP28, opened on 30 November in Dubai's Expo City—a sprawling conference centre built two years ago for the W [...]

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Of Interest

See archived entries

ITER NEWSLINE -

Reviewing the progress of drain tank manufacturing

A perfectly polished ITER drain tank steel plate at Stainless Steel Services (USA) with a surface finish well below 1.6 micrometres. Alongside Giovanni Dell Orco, Thierry Jourdan and Babulal Gopalapillai from ITER are members of US-ITER, AREVA FS, Joseph Oats Corporation and Stainless Steel Services. (Click to view larger version...)
A perfectly polished ITER drain tank steel plate at Stainless Steel Services (USA) with a surface finish well below 1.6 micrometres. Alongside Giovanni Dell Orco, Thierry Jourdan and Babulal Gopalapillai from ITER are members of US-ITER, AREVA FS, Joseph Oats Corporation and Stainless Steel Services.
Five large-scale drain tanks are planned for ITER's tokamak cooling water system (TCWS)—two safety drain tanks; two normal drain tanks; and one drain tank for the neutral beam injection system. These drain tanks are the largest captive components of the TCWS, planned for installment in Tokamak Building level B2 in mid-2014. Fabrication of the drain tanks is underway as part of the US Domestic Agency (US-ITER) commitment to ITER.

Four of the tanks measure 10 m in height and have an internal diameter of 6.25 m (the neutral beam injection drain tank is about half the height, with the same internal diameter). The stainless steel plates used for the fabrication of these tanks are polished prior to manufacturing in order to achieve a minimum surface finish of 1.6 micrometres.

Polishing work on the stainless steel is currently underway in Philadelphia, Pennsylvania (USA) at Stainless Steel Services, a US Domestic Agency and AREVA FS subcontractor. During the second week of December, members of the ITER Organization Cooling Water Section and Quality Assurance Division visited the US-ITER subcontactors and their sub-tier suppliers in order to review the progress of drain tank fabrication work.

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