Flange Water Flow Indicator Size: ZSJZ/H50-200 Nominal Dia: DN50, DN65, DN80, DN100, DN125, DN150, DN200 Flange Water Flow IndicatorSize: ZSJZ/H50-200Nominal Dia: DN50, DN65, DN80, DN100, DN125, DN150, DN200Rated working pressure: 1.2MpaRetard time: 2-90sReaction(L/min) Water Flow Indicator