NF E29-684

Gas cylinders - Taper screw thread for valve stem and cylinder neck assembly - Nominal diameter 26, Taper 1/16 (3° 34'), 14 Tpi NPT

Le présent document fixe les dimensions du raccordement par assemblage fileté conique d'un robinet sur une bouteille destinée à contenir un gaz comprimé ou liquéfié sous pression, dans les conditions prévues dans la norme NF E 29-671. Il s'applique aux bouteilles métalliques pour gaz comprimés et liquéfiés sous pression de contenance en eau supérieure à 4 l et au plus égale à 150 l.

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