Norm

NEN-EN 12729:2020 Ontw. en

Beveiligingen ter voorkoming van verontreiniging van drinkwater door terugstroming - Controleerbare terugstroombeveiliging met gereduceerde druk - Familie B - Type A

29,00 31,61 Incl BTW

Over deze norm

Status Ontwerp
Aantal pagina's 30
Commissie Drinkwatervoorziening
Gepubliceerd op 01-08-2020
Taal Engels
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.

Details

ICS-code 13.060.20
91.140.60
Nederlandse titel Beveiligingen ter voorkoming van verontreiniging van drinkwater door terugstroming - Controleerbare terugstroombeveiliging met gereduceerde druk - Familie B - Type A
Engelse titel Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B - Type A
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