NEN-EN 14451
Devices to prevent pollution by backflow of potable water - In-line anti-vacuum valves DN 8 to DN 80 - Family D, type A
| Organization: | NEN |
| Publication Date: | 1 May 2005 |
| Status: | active |
| Page Count: | 25 |
| ICS Code (Drinking water): | 13.060.20 |
| ICS Code (Check valves): | 23.060.50 |
scope:
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 8 to DN 80; d) test method and requirements for verifying these properties; e) marking and presentation; f) acoustics. This document specifies the characteristics of in-line anti-vacuum valves DN 8 to DN 80 that are suitable for use in drinking water systems at pressures up to 1 MPa (10 bar) and temperatures up to 65 °C and for 1 h at 90 °C.
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