20/30409071 DC - BS EN 13434. Devices to prevent pollution by backflow of potable water. Mechanical disconnector, hydraulic actuated. Family G, type B

20/30409071 DC

BS EN 13434. Devices to prevent pollution by backflow of potable water. Mechanical disconnector, hydraulic actuated. Family G, type B

Status : Current, Draft for public comment   Published : April 2020

Format
PDF

Format
HARDCOPY



This document specifies, the dimensional, the physical-chemical, the design, the hydraulic, the mechanical and the 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 disconnector 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 Number20/30409071 DC
TitleBS EN 13434. Devices to prevent pollution by backflow of potable water. Mechanical disconnector, hydraulic actuated. Family G, type B
StatusCurrent, Draft for public comment
Publication Date30 April 2020
Normative References(Required to achieve compliance to this standard)EN 1329-1, EN 1453-1, EN ISO 3822-3:2018, EN ISO 228-1, EN 806-1, EN 13959, EN 10310, EN ISO 3822-1, EN ISO 6509-1, EN 14901-1:2014+A1:2019, EN 1717:2000
Informative References(Provided for Information)EN 1092-2, ISO 9227, EN ISO 5167-1, EN 1092-1, ISO 7-1
International RelationshipsprEN 13434
Draft Expiry Date23 June 2020
DescriptorsInspection, Check valves, Industrial, Identification methods, Dimensions, Ratings, Marking, Cast-iron, Valves
ICS23.060.50
Title in FrenchDispositifs de protection contre la pollution par retour de l'eau potable - Disconnecteur mécanique assisté volumiquement - Famille G, Type B
Title in GermanSicherungseinrichtungen zum Schutz des Trinkwassers gegen Verschmutzung durch Rückfließen - Rohrtrenner, durchflussgesteuert - Familie G, Typ B
CommitteeB/504
PublisherBSI
FormatA4
DeliveryYes
Pages31
File Size423 KB
NotesWarning: this draft is not current beyond its expiry date for comments.
Price£20.00


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