Nordic catalogue - Watts Industries

BACKFLOW PROTECTION DEVICEINTRODUCTION200Protection matrixABAWATTS 909WATTS 009PressureLiquid categoryprotection unitsBackflow preventerwith controllablereduced pressurezoneP = atm P > atm1 2 3 4 5 1 2 3 4 5CAWATTS 9DPressureLiquid categoryprotection unitsBackflow preventerwith differentnon controllablepressure zonesP = atm P > atm1 2 3 4 5 1 2 3 4 5DAWATTS 288APressureLiquid categoryprotection unitsIn line anti-vacuumvalveP = atm P > atm1 2 3 4 5 1 2 3 4 5EAWATTSCHECK VALVESPressureLiquid categoryprotection unitsControllableanti-pollutioncheck valveP = atmP > atm1 2 3 4 5 1 2 3 4 5EBWATTSBRASS ANDPLASTICCHECK VALVESPressureLiquid categoryprotection unitsNon-controllableanti-pollutioncheck valveP = atmP > atm1 2 3 4 5 1 2 3 4 5Only permitted for specific domesticapplications and as front protection fordomestic water installations (pattern inhome water meters)NOHAWATTSS8C/NF8HDWATTSN9/NLF9PressureLiquid categoryprotection unitsHose unionanti-vacuum valveP = atmP > atm1 2 3 4 5 1 2 3 4 5