Selection of on-site flow meters
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There is a pipe at the site made of carbon steel, equipped with a flow meter that is a metal rotor flow meter. Over time, rust inside the pipes can accumulate on the guide rods of the metal rotor, causing the flow meter to give inaccurate readings. If I want to replace the in-line flow meter, what form would be better?
1) Addressing rust issues in pipelines: Install magnetic filters； 2) If the original rotameter is measuring stably, there is no need to replace it. 3) If the rotameter does not provide accurate measurements, it can be reselected based on the properties of the medium ；
To select the appropriate instruments, process parameters are required: pressure, temperature, medium, flow range, pipe diameter, and so on. What you said is too simplistic to serve as a reference
Redo the selection – what style should I choose?
Consider installing a magnetic filter upstream.
Ignoring these factors, considering only the option of replacing the flow meter
At the very least, provide a range of data rates for others to choose from
Agreed. If you don’t know what the medium is, how can you choose the right type? For example, is it a gas or a liquid? What is the pressure and temperature?
Adding a filter is the most cost-effective solution; conventional flow meters on-site use rotors, while other options involve remote transmission and display systems, and their costs are significantly different