Can the glass packing scratch the glass lining inside the column?

No. In the areas where the glass packing is mounted, the glass-lined surface is harder than our glass, due to pre-stress of glass lining on steel.

Structured packing, such as DURAPACK, is always mounted with a certain distance from the glass-lined wall to ensure the proper functioning of sealing. Also, in the case of glass Raschig rings, no mechanical damage to the glass-lining layer should occur.