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

Publication date:   Oct 14, 2020

General information

60.60 Standard published   Jun 24, 2020


CEN/TC 164 Water supply

European Norm

13.060.20   Drinking water | 23.060.50   Check valves



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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:
- at any pressure, up to 1 MPa (10 bar);
- with any pressure variation, up to 1 MPa (10 bar);
- 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.

Related legislation

Legislation related to this standard


Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec

Life cycle


EN 14451:2005


EN 14451:2020
60.60 Standard published
Jun 24, 2020