NF EN 14455

Devices to prevent pollution by backlow of potable water - Pressurized air inlet valves DN 15 to DN 50 - Family L, type A and type B

Le présent document spécifie les caractéristiques de clapets d'entrée d'air sous pression DN 15 jusqu'à DN 50 qui sont appropriés pour l'utilisation dans des réseaux d'eau potable à des pressions jusqu'à 1 MPa (10 bar) et des températures jusqu'à 65 °C et durant 1 h à 90 °C.

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