Feature: 1.Dry-dial,Magnetic drive,　Resistance to exterior magnet interference 2.Multi-jet , 3.Selected high quality materials for steady & reliable characteristic 4.Vacuum sealed register ensures the dial kept free from fog and keep the reading clear in a long term service 5.Measuring accuracy conform to ISO 4064 class B Standard 6.Universal use.　Easy for interchange & maintenance Working Condition ： Water temperature:≤40°C Working pressure:≤1MPa Meter Size Class Max Flow Nominal Flow Tran. Flow Min Flow Min Reading Max. Reading m3/h l/h m3 15 A 3 1.5 150 60 0.0001 99999 B 120 30 20 A 5 2.5 250 100 0.0001 99999 B 200 50 25 A 7 3.5 350 140 0.0001 99999 B 280 70 32 A 12 6.0 600 240 0.0001 99999 B 480 120 40 A 20 10 1000 400 0.001 99999 B 800 200 50 A 30 15 4500 1200 0.001 99999 B 3000 450