STN EN 12729
| Name: | STN EN 12729 |
| Validity: | Valid |
| Number of pages: | 36 |
| Language: |
EN
|
| Paper: | 17,20€ |
| Electronic version |
a) Only read (without ability to print and copy)
15,48€ b) Without ability to print, with ability to copy (printscreen) 17,20€ c) With ability to print and copy (printscreen) 22,36€ |
| Slovak title | Zariadenia na zamedzenie znečistenia pitnej vody spätným prúdením. Obmedzovač spätného toku s kontrolovateľnou obmedzenou tlakovou zónou. Skupina B. Typ A |
| English title | Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B - Type A |
| Release Date: | 01. 06. 2023 |
| Date of withdrawal: | |
| ICS: | 13.060.20, 91.140.60 |
| Sorting character/National clasification code | 13 6516 |
| Level of incorporation: | idt EN 12729:2023 |
| Official Journal | 05/23 |
| Amendments | |
| Replaced by: | |
| Repleces: | STN EN 12729:2003-08 (13 6516) |
| Note in Official Journal: | |
| Subject of the standard: | 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. |
| Preview: | Náhľad normy (PDF) |