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  • BSI
    BS EN 12729:2023 Devices to prevent pollution by backflow of potable water. Controllable backflow preventer with reduced pressure zone. Family B. Type A
    Edition: 2023
    $442.60
    / user per year

Description of BS EN 12729:2023 2023

This document specifies the field of application, the dimensional, the physico-chemical, the design, the hydraulic, the mechanical, and the acoustic characteristics of controllable backflow preventers with reduced pressure zone, Family B, Type A. This document covers controllable backflow preventers of Family B, Type A, with reduced pressure zones, intended to prevent pollution of potable water by backflow, caused by backsiphonage or by backpressure. It is applicable to controllable backflow preventers in denominations DN 6 up to DN 250. It covers controllable backflow preventers 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.

Standard NumberBS EN 12729:2023
TitleDevices to prevent pollution by backflow of potable water. Controllable backflow preventer with reduced pressure zone. Family B. Type A
StatusDefinitive
Publication Date2023-03-09
ReplacesBS EN 12729:2002
Identical National Standard OfEN 12729
DescriptorsDimensions, Anti-siphonage systems, Water pollution, Design, Flow control, Potable water, Wastes, Pressure
ICS91.140.60 Water supply systems, 13.060.20 Drinking water
CommitteeB/504
ISBN978 0 539 13420 9
PublisherBSI
Pages36

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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