BS EN 14451:2020
Devices to prevent pollution by backflow of potable water. In-line anti-vacuum valves DN 10 to DN 50 inclusive. Family D, type A
Označení normy: | BS EN 14451:2020 |
Počet stran: | 26 |
Vydáno: | 2020-07-06 |
ISBN: | 978 0 539 02748 8 |
Status: | Standard |
BS EN 14451:2020
This standard BS EN 14451:2020 Devices to prevent pollution by backflow of potable water. In-line anti-vacuum valves DN 10 to DN 50 inclusive. Family D, type A is classified in these ICS categories:
- 23.060.50 Check valves
- 13.060.20 Drinking water
This document specifies the field of application, the dimensional, the physico-chemical, the design, the hydraulic, the mechanical, and the acoustic characteristics of in-line anti vacuum valve family D Type A.
This document covers in-line anti vacuum valve family D Type A, intended to prevent pollution of potable water by backflow, caused by backsiphoning only.
It is applicable to in-line anti vacuum valve in denominations DN 10 up to DN 50.
It covers in-line anti vacuum valve of PN 10 that are capable of working without modification or adjustment:
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at any pressure, up to 1 MPa (10 bar);
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with any pressure variation, up to 1 MPa (10 bar);
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in permanent duty at a limited temperature of 65 °C and for maximum 1 h at 90 °C.
It specifies also the test methods and requirements for verifying their characteristics, the marking and the presentation at delivery.