NF EN 1092-4

Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 4 : aluminium alloy flanges

Le présent document constitue la quatrième partie d'un ensemble de quatre normes concernant les brides PN en divers matériaux. Il spécifie les prescriptions applicables aux brides circulaires désignées PN en alliages d'aluminium de diamètres nominaux DN 15 à DN 600 et pour des gammes de PN 10 à PN 63, prévues pour être utilisées sur les réseaux de tuyauteries et sur les appareils à pression. Il définit les types de brides et leurs portées de joints, les dimensions, les tolérances, les dimensions de la boulonnerie, les états de surface des portées de joints, le marquage, les matériaux, les relations pression/température (p/T) et les masses des brides. Il vient à l'appui des exigences essentielles de la Directive 97/23/CE "Équipements sous pression".

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