Selection of small-diameter flow meters
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DN15 small-diameter flow meters are mainly used for gas media; which type of flow meter is suitable for measurement?
For small diameters, ball valves are probably a better choice
The question raised by the poster is too vague. It would be best if you provided detailed process parameters and usage requirements. Each type of flow meter has its own application characteristics and suitable range; it is not possible to simply determine which flow meter should be used.
Tubes this thin are probably used more in laboratories. I recommend a glass rotameter; the laboratory just installed one for CO2 recently
For gas flow, a small threaded ball valve can be used; it’s not expensive and also very effective
For such low-diameter flow meters used for measuring gases, options include rotor flow meters, turbine flow meters, or vortex flow meters; it is possible to consult the manufacturer, but the properties of the medium and the flow range still need to be provided.