Material selection for the solution tank
Thread Content
I want to buy a few liquid filling machines; I found that there are two types: those made of stainless steel and those made of enamel. Ignoring safety, only considering the impact on product contamination. Our products are sensitive to trace amounts of heavy metals, especially Mn. Moreover, the product has a slightly acidic nature, so we prefer not to use stainless steel. However, it seems that linered steel also contains heavy metals. Have you ever used glass material for liquid preparation tanks? 100L – it only needs CIP cleaning, volume control, and heating functions.
It’s great to use glass containers at normal pressure – they are clean and resistant to acids. Additionally, fiberglass and glass-lined steel are not glass. Fiberglass is a type of plastic; it is not as clean as glass in terms of durability. Enameled glass is a ceramic glaze applied to a metal surface; it is corrosion-resistant and just as clean as glass. Cans lined with PTFE/PE are also widely used and keep things clean. If operations under positive or negative pressure are required, the selection process becomes more complicated
The concept of \"slightly acidic\" you mentioned is rather vague – does it refer to chloric acid, fluoric acid, or something else? What is the pH value? CIP cleaning can be easily carried out, and volume measurement is also straightforward. As for the heating you mentioned, what temperature is required? Since your process conditions are not clear, it’s difficult for others to recommend the appropriate materials for you