New Metallic Gaskets Qualification: Resistance to Accident and Normal Conditions in TN International Casks

Abstract

For dual purpose "transport/storage" casks (like the TN24 casks family or casks for vitrified wastes), the confinement by way of metallic gaskets has long been the chosen solution. Their metallic nature leading to a good behaviour in long-term and high temperature conditions, they still have to satisfy the transport regulations requirements, which are not a given. In order to secure the supplying of such strategic parts of a cask and, above all, to keep developing efficient sealing solutions, TN International has found and qualified new metallic gaskets. This paper presents the tests performed by TN International to assess the good behaviour of new metallic gaskets regarding the following accident and normal conditions presented in table 1.