Créé le : 16/09/2010 - Mis à jour le : 17/10/2012
Didier Lasseux, Yves Jannot, Emmanuel Sauger, Pascal Jolly, Benoit Omnes - ASME 2009 Pressure Vessels and Piping Conference July 26-30, 2009…
In this work, we address the issue of sealing performance of ring-shape valves compression packings. Our analysisis focused on the characterization of the permeabilty of the rings made of die-formed exfoliated graphite. Because of the tight character of the material, significant Klinkenberg effects are expected.In addition, due to the manufacturing process, permeabilities kz and kr as well as Klinkenberg coefficients bz and br in the respective axial and radial directions are markedly different and strongly dependent up on the applied stress...
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Emmanuel Sauger
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