... , wide range; Extensive measured mediums, can measure liquid, gas and steam; Vortex flowmeterTechnical parameters Nominal aperture: DN15, DN20 ... DN300, DN350, DN400, DN450, DN500; Applicability: gas (air, oxygen, nitrogen, coal gas, natural gas, chemical gas and so on), liquid (water, high temperature ... 2.5MPa ≤4Mpa;Accuracy grade: liquid 0.5 grade, gas, steam 1.0 grade;Range of flow rate: liquid ...