Areva Np Gmbh

Jean-Georges Alibaud

Thierry Muller

Guy Barois

Christelle Dumez

The invention relates to a nuclear reactor primary circuit comprising a primary pipeline (), which defines an internal volume () and in which a primary nuclear reactor coolant downwardly runs, an additional pipeline () which is branched to the primary pipeline () and defines an internal volume communicating with the internal volume () of the primary pipeline () and a cuff () whose first end () is connected to the additional pipeline () and the second free end () is positioned in the internal volume () of the primary pipeline (). According to said invention, the second end () is delimited by a free peripherial edge () comprising at least one upstream and downstream sections () which are oriented towards the upstream, wherein the upstream section () penetrates into the internal volume () deeper from the primary pipeline () than the downstream section ().

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Paris, France

Jean-Georges Alibaud