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Tips In Choosing the Best Type of Flow Meter

Because of the wide range of technologies available in flow meters these days, the job of selecting one for your specific need can be a bit confusing. This even is made more difficult since several other factors come into play and must be considered right before you come up with the best choice. You never should believe when self-proclaimed experts tell you that in selecting a flow meter, it’s really just about the price.

The first thing you need to know is if you’re actually in need of a flow meter. Keep in mind that while there are various applications over which the device is needed, there also are those that don’t need it. One good example is what you really need is to find out the rate at which liquid or gas is moving through a particular pipeline. If it’s the kind of application you intend to do, all you need is a simple flow indicator that likewise can be purchased from your flow meter supplier. Buying the flow indicator is more sensible because it’ll cost a lot less than the basic flow meter.

Next tip is to not buy the cheapest flow meter out there, because more likely than not, you will be regretting that decision later on. We’re not saying that the most affordable ones are defective or broken for that matter; it’s just that you never can expect them to last long and that’s really not a good thing considering the application you will be using it for. For the most part, low-priced flow meters don’t come with warranty and technical backup from the supplier.
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Additionally, it is as equally important to first identify your flow before you even begin searching for the different options. The one thing you shouldn’t forget is that every type of gas or fluid is expected to behave distinctively once they flow inside the pipeline. The reason for the difference is the thing called viscosity, which is defined as how much the fluid is resisting flow. The resistance thereby affects the velocity of the flow in the pipeline.
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It is best to purchase a flow meter that comes with the widest turndown. This right here is a very critical factor because you never will be able to predict or know in advance the specific range of flows that need to be measured. By selecting a flow meter with a wide turndown, it means you get the guarantee that all anticipated flow variations will be covered.

Lastly, it makes the most sense to pick the flow meter that can give you the best application accuracy. If you happen to have the lowest uncertainty when it comes to measurement, it only means that the best option for you is a positive displacement meter. Electromagnetic varieties are best for the widest flow range while turbine meters are used primarily for the highest short-term repeatability.