BS EN 12729:2023
Current
The latest, up-to-date edition.
Devices to prevent pollution by backflow of potable water. Controllable backflow preventer with reduced pressure zone. Family B. Type A
Hardcopy , PDF
English
09-03-2023
Important note : Users cannot be edited or removed once added to your Multi user PDF.| Committee |
B/504
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| DocumentType |
Standard
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| Pages |
36
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| PublisherName |
British Standards Institution
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| Status |
Current
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| Supersedes |
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.
| Standards | Relationship |
| EN 12729:2023 | Equivalent |
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