NEN-EN 14451:2019 Ontw. en
Current
The latest, up-to-date edition.
Devices to prevent pollution by backflow of potable water - In-line anti-vacuum valves DN 10 to DN 50 inclusive - Family D, type A
Hardcopy
English
15-02-2019
This document specifies: a) field of application; b) requirements for in line anti-vacuum valves; c) dimensional, the physico-chemical properties and the properties of general hydraulic, mechanical and acoustic design of in-line anti-vacuum valves DN 10 to DN 50; d) test method and requirements for verifying these properties; e) marking and presentation; f) acoustics.
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