NF E29-532

Gas installations - Mechanical joint with flat gasket for pipes gas installations

Le présent document fixe les exigences fonctionnelles des mamelons, douilles écrous et joints utilisés en tuyauterie pour effectuer l'assemblage par soudage ou brasage de tubes ou d'appareils par jonction sur joint plat dans les installations transportant des combustibles gazeux. Il définit également les dimensions et la nature des joints qui contribuent à l'étanchéité des raccordements. Les raccords à joint plat sont définis pour : une pression maximale de service inférieure ou égale à 500 mbar pour le gaz distribué par réseau ; une pression nominale de 1,75 bar pour le gaz de pétrole liquéfié distribué en récipients. Il s'applique aux familles de raccords désignés " joint plat gaz - JPG " et " joint plat compteur de gaz - JPC ". Enfin, Il définit les dispositions spécifiques qui s'appliquent aux raccords et joints plats pour les " compteurs de gaz " au sens de la NF EN 1775.

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