On the issue of viscosity in flowmeter selection
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Dear sea friends, in the specifications for selecting flow meters, some of these meters have requirements regarding the viscosity of the fluid; however, they only mention the concepts of high viscosity or low viscosity. So how exactly should one determine what constitutes high or low viscosity? Are there any specific figures? Please also explain
This post was last edited by pH7 on 2010-8-10 at 11:37. My topic is a bit too broad. There are so many types of flow meters; which one should we choose? The mass flow meter has nothing to do with viscosity, as stated in the E+H manual. Vortex streets are no problem either; that’s what the E+H manual states. However, there are requirements for the Reynolds number of the vortex row. E+H claims to start at 4,000, while Emerson says it starts at 8,000 (for this reason, I give priority to E+H for vortex flow meters). However, the Reynolds number is related to viscosity. Once vortex streets are formed, viscosity becomes less important. Let’s talk about these first as a way to spark further discussion. Which flowmeters with viscosity requirements would you like to discuss?
Such as target flowmeters, turbine flowmeters