... accuracy, wide range; Extensive measured mediums, can measure liquid, gas and steam; Vortex flowmeterTechnical parameters Nominal aperture: DN15, DN20 ... : gas (air, oxygen, nitrogen, coal gas, natural gas, chemical gas and so on), liquid (water, high temperature water, oil, food liquid, chemical liquid and ... 1.6MPa ≤2.5MPa ≤4Mpa;Accuracy grade: liquid 0.5 grade, gas, steam 1.0 grade;Range of flow ...