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  • BSI
    21/30441565 DC BS EN 13077. Devices to prevent pollution by backflow of potable water. Air gap with non-circular overflow (unrestricted). Family A. Type B
    Edition: 2021
    $42.22
    / user per year

Description of 21/30441565 DC 2021

This document specifies the characteristics and the requirements of air gap with non-circular overflow (unrestricted) Family A, Type B for nominal flow velocity not exceeding 3 m/s. Air gaps are devices for protection of potable water in water installations from pollution by backflow. This document applies to air gaps in factory-assembled products and to constructed air gaps in situ and defines requirements and methods to verify and ensure compliance with this document during normal working use.

The fluid in the receiving vessel is assumed to have similar properties to the water supply. Where this is not the case, additional care or tests could be required to verify the efficacy of the solution in practical use.



Standard Number21/30441565 DC
TitleBS EN 13077. Devices to prevent pollution by backflow of potable water. Air gap with non-circular overflow (unrestricted). Family A. Type B
StatusDefinitive
Publication Date2021-11-04
Identical National Standard OfprEN 13077
DescriptorsPollution, Pipes, Potable water, Fluid inlets, Pipework systems, In-situ construction, Pollution control, Water supply engineering, Anti-siphonage systems, Water, Overflows, Water pollution, Water supply (buildings), Valves, Prefabricated parts, Flow control
ICS13.060.20 Drinking water
CommitteeB/504/-/14
PublisherBSI
Pages21

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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