HCL measurement
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Which flow meter is suitable for HCL measurement at a temperature of -10 degrees Celsius?
Electromagnetic flowmeters work well; the main consideration is corrosion resistance, and fluorinated linings are relatively cost-effective.
Does HCL mentioned by the poster refer to hydrochloric acid or hydrogen chloride gas? Hydrochloric acid can be measured using an electromagnetic flowmeter, while gases can be measured with vortex flowmeters and orifice plates, right?
Pure HCl probably can’t be measured using an electromagnetic flowmeter, right? HCl is insoluble in water and does not conduct electricity.
This should be a pure gas; it’s likely that an electromagnetic flowmeter cannot be used. Personally, I would recommend a mass flowmeter – a thermal type will work just fine
For HCL gas, an orifice plate can be used directly; since it results in high pressure loss and is reasonably priced, our facility uses orifice plates for HCL gas, and it works very well!
For pure gases, try vortex flow meters; when it’s dry, there is a wider range of material options available
Where we are, target flow meters are used due to the large diameter, and they work quite well