Standard Swedish standard · SS-EN 12729:2023

Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B - Type A

Status: Valid

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Standard Swedish standard · SS-EN 12729:2023

Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B - Type A
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Scope
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.

Subjects

Drinking water (13.060.20) Water supply systems (91.140.60)


Buy this standard

Standard Swedish standard · SS-EN 12729:2023

Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B - Type A
Subscribe on standards - Read more Dölj
Price: 1 045 SEK
standard ikon pdf

PDF

Price: 1 045 SEK
standard ikon

Paper

Price: 1 672 SEK
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Product information

Language: English

Written by: Svenska institutet för standarder

International title:

Article no: STD-80041553

Edition: 2

Approved: 3/6/2023

No of pages: 40

Replaces: SS-EN 12729