What type of level gauge should be used to measure acetic acid?
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For atmospheric pressure storage tanks with a height of over 3 meters and installed at the top, is it better to use a guided wave radar level gauge or an ultrasonic level gauge in normal temperature conditions? Given that acetic acid is volatile but does not produce any foggy gas, it freezes at around 17 degrees above zero. I had considered using an EJA transmitter, but since the tank has already been built and it’s not possible to reopen the flanges, I gave up on that idea. Is this a viable option?
Glacial acetic acid is used for producing acetates. The location is Zhuhai; the storage tank has a capacity of 100 m3. The level gauge is of the magnetic flap type, and the material used is 316L stainless steel, which indicates that it is suitable for use. However, in the north, one needs to consider protecting the instruments from freezing
There are too many options available for level gauges; a hydrostatic type will do. Pressure can be taken from the bottom of the storage tank, and if freezing is a concern, make the pressure sensing tube shorter.
An immersion type hydrostatic level gauge is a good choice. Ultrasonic waves are not recommended, as condensation and liquid accumulation tend to occur in winter; this is a problem that arises with the ultrasonic devices I use on sealed water tanks.
It is recommended to use a radar; if you are worried about fluid accumulation, you can buy one with a purge function
Guided wave radar, cable coated with PTFE for corrosion protection
A high-frequency radar level gauge can be chosen, along with a corrosion-resistant rod antenna for non-contact measurement