types of fire hose nozzle. Connector DN: 2"(50mm),2.5" (65mm) Flow Nozzle Diameter: 16mm,19mm Rated flow: 5 7.5, ISO,CCC ... , types of fire hose nozzle.Connector DN: 2"(50mm),2.5" (65mm)Flow Nozzle Diameter: 16mm,19mmRated flow: 5 7 ... , Technical ParameterConnector Nominal Diameter: 2"(50mm),2.5" (65mm)Flow Nozzle Diameter: 16mm,19mmRated flow: 5 7.5,Flow Allowable variatio ...