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BSI BS EN 13433:2021

Devices to prevent pollution by backflow of potable water. Mechanical disconnector, direct actuated. Family G, type A
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BSI BS EN 13433:2021

Devices to prevent pollution by backflow of potable water. Mechanical disconnector, direct actuated. Family G, type A

PUBLISH DATE 2022
PAGES 32
BSI BS EN 13433:2021
This document specifies the dimensional, physical-chemical, design, hydraulic, mechanical and acoustic characteristics of mechanical disconnectors, direct actuated Family G, Type A. This document is applicable to mechanical disconnectors 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); — with any pressure variation 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.
SDO BSI: British Standards Institution
Document Number EN 13433
Publication Date Jan. 13, 2022
Language en - English
Page Count 32
Revision Level
Supercedes
Committee B/504
Publish Date Document Id Type View
Jan. 13, 2022 BS EN 13433:2021 Revision
July 31, 2007 BS EN 13433:2007 Revision