Vortex Flow Meter Installation

There are a few things one should know before installing a flow meter. Of course, first you need to select the vortex meter that suits your needs. Among the factors the most important one is the fluid phase, meaning liquids, steams, gasses and the other one just as important is the flow conditions ( clean, dirty, viscous and so on). Depending on these conditions you need different types of flow meters, for example piston flow meters are used for corrosive fluids. If you are still stuck on the sub models take in consideration the line size and low rate, and then the temperature, the location of the flow meter ( for example indoor, outdoor ) and even the installation method (like insertion, inline) can help you further eliminate models. And one should never forget the fluid’s properties, meaning viscosity, conductivity, density, pressure and so on.

A vortex meter may be an optional decision since it is relatively low maintenance cost (at least initially), it presents a low sensitivity in various processes and it is pretty low wear (compared to other types of flow meters). These are the reasons why the vortex flow meters have gained a wider market.

Now that if you have your mind set on the vortex flow meter, the next step is installation. There are two methods commonly used: inline and insertion. The difference between inline and insertion models is that the first includes connectors to both the upstream and downstream pipes while the latter inserts the sensor probe into the pipes. The meters can be installed at any angle (vertically, horizontally, so on) you just need to be sure that they are kept flooded. To be sure they are flooded check valves can be used so the piping is always full of liquid. Between the two types of installation the insertion would be the better choice since it is more flexible and more economical.

When the flow range is not known you need to make a few approximate measurements. Since without it you can’t be sure that the vortex flow meter will work, because the meter requires an ideal velocity profile free from distortion and/or swirls. To ensure this it is recommended the use of control valves, and of course the temperature elements needs to be located around 5 diameters downstream.

Before tangling with the idea of installing a vortex flow meter there are a lot of information you need to go through, and this article tried it’s best to give you a general overview of this process.