types of fire hose nozzle. Connector DN: 2"(50mm),2.5" (65mm) Flow Nozzle Diameter: 16mm,19mm Rated flow: 5 ... ISO,CCC, types of fire hose nozzle.Connector DN: 2"(50mm),2.5" (65mm)Flow Nozzle Diameter: 16mm,19mmRated flow: ... Nominal Diameter: 2"(50mm),2.5" (65mm)Flow Nozzle Diameter: 16mm,19mmRated flow: 5 7.5,Flow ... /7.565197.5≥28Multi-functional fire nozzleQDH6.0/4.050 0.65≥25(stright-through)≥12.5 ...