Flow meter selection guides
Practical guides to incomplete inquiries, small gas flows and refrigerant pressure loss. Learn what to establish before committing to a model.
How to choose a flow meter when fluid properties are incomplete
Select a preliminary flow meter without complete density, viscosity or conductivity data. Learn which assumptions and operating conditions need confirmation.
02 / GAS / UNITSWhat an air inquiry starting at 0.01 m³/h still needs to specify
Review a thermal MFM for 0.01 m³/h air. Convert to 0.1667 L/min at the same state, distinguish normal flow and resolve pressure, upper range and accuracy.
03 / LIQUID / REFRIGERANTBalancing accuracy and pressure loss in a refrigerant loop
Compare Coriolis, turbine and ultrasonic meters for liquid refrigerant loops. Check low-flow accuracy, pressure loss, single-phase operation and 0–5 VDC output.
General engineering guidance. A manufacturer or responsible engineer must verify the final model, materials, ratings, calibration and installation.