Which type of flow meter is suitable for low-flow applications? Gas at normal temperature and pressure
Thread Content
Which type of flow meter is suitable for low-flow applications? Gas at normal temperature and pressure: 0.1~1 m3/h. I asked a few companies, and most of them use metal rotors. Can’t turbines be used for gases with such low flow rates? There is also the vortex street type, but our flow velocity isn’t very high; roughly speaking, it’s between 0.2 and 0.6 m/s. Which one would be more suitable?~~~
This post was last edited by wanghl0997 on 2009-11-6 at 12:01. Have you considered using a thermal gas mass flow meter? Our COMBIMASS thermal gas mass flow meter is very sensitive to low-flow gases! The flow range is 0.08–400 Nm/s. If you need information, please send your email address and contact details to my email: small.small.sun@163.com
I’ll consider it for now, thank you. Looking forward to more replies
For gases at normal temperature and pressure, a metal rotameter is a better choice. And it is actually used for low-flow measurement.
At normal temperature and pressure, a glass rotor can also be used, but the issue of resistance still needs to be taken into account
When the pressure is not high, either a metal rotor flow meter or a glass rotor flow meter will work. Vortex flow meters have certain requirements regarding flow velocity, and the flow velocity you mentioned is definitely not suitable.
In such operating conditions, vortex flow meters definitely cannot be used; a metal rotor is a more reliable option. . .
Metal rotameters are recommended; looking forward to replies from experts
For gases at normal temperature and pressure, a metal rotor flow meter is a better choice, 80
For gases at normal temperature and pressure, rotameters are used. I’ve used vortex flowmeters before, and their accuracy is very low
Eddy current vortex flowmeters work well too; many small-scale households use them for natural gas metering