What to consider when selecting a flow meter for chemicals
There are a few key factors to consider when selecting a flow meter for chemical service:
1. Compatibility with the chemical: The flow meter should be compatible with the specific chemical or chemicals that will be flowing through it. This includes compatibility with the chemical’s properties (e.g. pH, specific gravity, viscosity) and any potential reactions with the materials used in the flow meter.
2. Flow rate: It’s important to select a flow meter with a range that can accommodate the expected flow rate for the application. If the flow rate is too high or too low, the flow meter may not provide accurate measurements.
3. Accuracy: The accuracy of the flow meter is important, as it determines how closely the measured flow rate matches the actual flow rate. In some cases, high accuracy may be critical (e.g. in a chemical plant where precise measurements are needed for process control).
4. Repeatability: The flow meter should provide consistent and repeatable measurements over time.
5. Rangeability: It’s helpful to select a flow meter with a wide rangeability, so that it can accommodate a range of flow rates.
6. Pressure and temperature: The flow meter should be able to withstand the expected pressure and temperature range in the application.
7. Type of flow meter: There are many different types of flow meters available, each with its own set of advantages and limitations. Some common types for chemical applications include , paddle wheel, coriolis, magnetic, ultrasonic, and vortex flow meters.
8. Cost: The cost of the flow meter is also an important consideration, as it can have a significant impact on the overall budget for the project.
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