SBi-anvisning 227 - Byggecentrum

IndholdForord................................................................................................... 7Indledning............................................................................................. 91 Korrosion.......................................................................................... 101.1 Ilt og vand................................................................................. 101.2 Elektrisk kredsløb......................................................................111.3 Korrosionsformer..................................................................... 121.4 Katodisk beskyttelse................................................................ 152 Vandtyper, vandbehandling og korrosion........................................ 162.1 Råvand..................................................................................... 162.2 Brugsvand................................................................................ 172.3 Blødgøring............................................................................... 222.4 Delvis afsaltning og afkarbonatisering..................................... 242.5 Afsaltningsanlæg..................................................................... 252.6 Afluftning.................................................................................. 282.7 Mekanisk filtrering.................................................................... 302.8 UV-bestråling........................................................................... 302.9 Magnetisk vandbehandling...................................................... 313 Kvalitetssikring af brugsvand........................................................... 323.1 Årsager til ændring af vandkvalitet........................................... 323.2 Kemiske interaktioner i vand.................................................... 333.3 Metalafgivelse.......................................................................... 343.4 Afgivelse af organiske stoffer fra plast..................................... 363.5 Vækst af mikroorganismer....................................................... 373.6 Legionellabakterier.................................................................. 383.7 Termofile bakterier................................................................... 433.8 Forureninger udefra................................................................. 434 Brugsvandsanlæg............................................................................ 444.1 Projektering.............................................................................. 444.2 Valg af rørmateriale.................................................................. 464.3 Armaturer, ventiler, fittings, vandmålere.................................. 674.4 Varmtvandsbeholdere.............................................................. 764.5 Varmelegemer.......................................................................... 804.6 Gennemstrømningsvandvarmere............................................ 825 Anlæg til behandlet vand................................................................. 835.1 Rørmaterialer........................................................................... 845.2 Beholdere................................................................................. 865.3 Armaturer................................................................................. 875