Seeking manufacturers of flow meters for electronic-grade high-purity hydrofluoric acid
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Who in China is producing rotameter for high-purity hydrofluoric acid (G5 grade)?
This is a very high standard; there probably won’t be many who can meet it
I just can’t find them. High-purity electronic chemicals have only started to be developed in China in recent years; the related instrumentation has yet to catch up. Another problem is that the volume is small; very few meter manufacturers undertake such work.
Why do we have to use a rotor? Ask about other forms, okay?! Corrosion-resistant
Mutianly: Why do we have to use a rotor? Ask about other forms, okay?! Corrosion-resistant flow meter for reflux extraction in distillation towers; no other suitable types are available. The key point is that the material used is high-purity PFA suitable for the semiconductor industry, with metal ion leaching levels at the ppt level.