What flow meter is used for industrial ammonia water?

What is the conductivity? Electromagnetism should work then

The electromagnetic measurements are inaccurate; I’m not sure why, but the deviation is quite large. :L:L

If electromagnetic uncertainty is a concern, consider using vortex flow meters made of 316L material; flow meters with orifice plates can be considered next. If the electrical conductivity is satisfactory, electromagnetic flow meters should be given priority. As for deviations, it’s possible to analyze the underlying factors and find comprehensive solutions

Is it related to the plastic material of the pipe, or cannot electromagnetic flowmeters measure ammonia water?

It seems there are flowmeters specifically designed for measuring ammonia solution

The question posed by the original poster cannot be answered strictly speaking. Any issue related to flow measurement requires the provision of the on-site operating conditions and technical requirements. It’s just like asking what type of flow meter is suitable for measuring water flow – the question is too general; each flow meter has its own measurement characteristics and requirements. There are many types of flow meters that can be used to measure water flow, but the choice of which one to use depends on the process conditions at your site and the requirements regarding technical specifications. Therefore, the issue of selecting a flow meter arises; you must provide information on the process conditions at the site as well as the requirements regarding technical parameters. These include things such as pipe diameter/flow range/material of the pipes/operating pressure/operating temperature/requirement for explosion protection/precision requirements/requirements for signals and power supply/location for installation on site, and so on. Only in this way can a comprehensive solution be developed, and the flow meter chosen will be appropriate for the task.

Let me add something: The selection should be based on the operating conditions; with the right choice, various types of flow meters can achieve the desired results. But in addition to the operating conditions, factors such as cost, installation (a poor installation can result in inaccurate readings even with a high-precision flow meter), space available for maintenance, maintenance frequency, and service life also need to be taken into account (the costs associated with maintenance and replacement, including any downtime, can be higher than the price of the flow meter itself)