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  • BSI
    BS EN 13434:2021 - TC Tracked Changes. Devices to prevent pollution by backflow of potable water. Mechanical disconnector, flow actuated. Family G, Type B
    Edition: 2022
    $529.67
    / user per year

Description of BS EN 13434:2021 - TC 2022

This document specifies the dimensional, physical-chemical, design, hydraulic, mechanical and acoustic characteristics of mechanical disconnectors, flow actuated Family G, Type B. This document is applicable to mechanical disconnectors flow actuated in nominal sizes DN 8 up to DN 250, intended to prevent the return of water having lost its original sanitary and drinking qualities (called “polluted water” in this document), into the potable water distribution system whenever the pressure of the latter is temporarily lower than in the polluted circuit. This document covers the mechanical disconnectors of PN 10 that are capable of working without modification or adjustment: — at any pressure up to 1,0 MPa (10 bar); — in permanent duty at a limit temperature of 65 °C and 90 °C for 1 h maximum. It specifies also the test methods and requirements for verifying these characteristics, the marking and the presentation at delivery.

Standard NumberBS EN 13434:2021 - TC
TitleTracked Changes. Devices to prevent pollution by backflow of potable water. Mechanical disconnector, flow actuated. Family G, Type B
StatusDefinitive
Publication Date2022-02-21
DescriptorsIndustrial, Inspection, Ratings, Marking, Check valves, Valves, Cast-iron, Identification methods, Dimensions
ICS23.060.50 Check valves
CommitteeB/504
ISBN978 0 539 21268 6
PublisherBSI
Pages78

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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