variable area flowmeters flowmeters has small (glass) for analysis
applications, flow meters with fine controlled needle valves were
designed specifically for use in analysis applications. The devices
also can be easily integrated into the panels, has a special
construction that allows the dosage of-flow valve with an extremely
small volume control feature nearly linear.
Features: - Simple, low cost measuring principle without auxiliary power - Resistant to extreme chemical exposure - Can be used with media components and chlorine gas in harsh environments - Panel mounting and 19 "installation - Process temperature of -5 ° C to +100 ° C - Operating pressure up to 4 bar - Ceiling for measuring liquids from 2.5 to 40 l / h (water: 20 ° C) - Upper limit of measurement of gases from 5 to 1000 l / h (air: 20 ° C, 1,013 bar) - Accuracy 4.0% - 6.0% of ACC measured value. VDI / VDE 3513-2 (QG = 50%)