Water Flow Detector, Flange Type Water Detector, Water Supply Parts,detector,firefightting,fire safety Water Flow Detector, Flange Type Water Detector, Water Supply Parts,detector,firefightting,fire safety Installation and Connection PatternFlange TypeModelZSJZNominal Diameter(mm)DN50DN65DN80DN100DN125DN150DN200Materialaluminum, plasticRated Working Pressure(Mpa)1.2Delayed Time(s)2∼90Sensitivity( ...