Challenge:
You want to get a quick flow check on a different fluid because the process fluid is changing or you might be experimenting with the process, but you don't have a VA (variable area) flow meter that is calibrated for the different fluid.
Solution:
Enter the necessary information into the equation below and you'll get the flow rate for the different fluid.
![](https://cdn.brooksinstrument.com/-/media/blog/2013/08/WP_CorrectingVAForDifferentOperatingDensity_0813131.jpg?rev=3708cbf983644ccaadb20047fd638b8d&hash=1D35396DD69650B7D6AD4933E9934A1B)
Things to Keep in Mind:
- The meter has to be a size 8 (1/2" nominal size) or larger and of course the flow meter has to be capable of measuring the flow of the different fluid.
- If the new specific gravity is drastically different, the meter may not be capable of registering a flow rate for the new fluid.
- If your experiment is successful, I recommend you get a metal tube flow meter so you don't have to calculate the flow rate every time you use the different fluid.
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