... .high sensitivity and rapid response 4.size:6~4000mm gas flow meter manufacturer Quanzhou rixin flow meter and instrument ... SBL target flow meter can measure widely used in gas,liquid,steam,petroleum industry,chemical,engineering,energyindustry,food industry, ... only about 1/2ΔP of standard orifice.Explosion-proof sign: Intrinsically safe type(ExiallCT4);Explosion isolating type(ExdllCT4)Execution ...