... 40MPa V cone water /gas differential pressure flow meter IntroductionV cone flow meter changes the fluid contraction from ... gases: hydrogen, helium, argon, oxygen, nitrogen; air content water/dustFlue gasSTEAM: Saturated steam, superheated steamLIQUID: Oil, fuel oil ... , emulsifying oil content waterWater, including pure water, sewageAll kinds of solution, including salt solution and alkaline ...