Are fluorinated lining pipes used frequently in pharmaceutical factory projects?
Thread Content
I’d like to know more about this – in pharmaceutical factories, which areas or processes make use of fluorinated piping?
It depends on the medium conditions; your statement is too vague!
There are many fluorine-lined valves and pipes used in pharmaceutical raw materials
In processes that require hydrochloric acid as an auxiliary material, concentrated hydrochloric acid is used as the raw material, while dilute hydrochloric acid is needed for production; in such cases, the pipes carrying concentrated hydrochloric acid must be lined with PTFE
It seems that nothing other than the active pharmaceutical ingredient is needed; moreover, the active pharmaceutical ingredient can be replaced by other materials as well, such as fiberglass pipes. Some companies in the biopharmaceutical industry use them in certain applications for transporting products containing high levels of chloride ions, but this is very rare. In most cases, sanitary-grade steel pipes are still preferred, as cleanliness requirements must be met
Acidic materials – areas where stainless steel is not suitable; widely used in pharmaceutical factories
Fluorine lining is generally used for media that corrode stainless steel and have strong solvency for ordinary PP and FRPP. It’s costly and difficult to produce. A specific analysis of the medium is required; in some cases, Tang glass or ordinary glass can be used as a substitute.
Hydrochloric acid, sulfuric acid, aniline, dichloromethane, etc. – we have everything needed for dichloromethane processing; other types of pipes are useless for this purpose. The 316L material lasts only about a month.
FRP does not have good pressure resistance; in our case, materials used in acidic environments are generally lined with fluoropolymer. We once used spray-coated materials as well, but their adhesion was very poor and they deteriorated quickly, so we switched back to fluoropolymer-lined materials