Metal pall rings have more than 50% higher capacity than raschig ring. The pressure drop is only half of the raschig ring. The relative efficiency is about 30% higher than that of raschig ring.
25mm Pall Rings | ||
Free Space (%) | 94 | ![]() |
Specific Surface Area (m2/m3) 209 | ||
No. Per Unit Volume (m3 ) | 49,500 | |
Packing Factor (m-1) | 176 | |
Specific Weight (kg/m3) 322 – 644 Stainless Steel | ||
Dimensions (mm) | 25 x 25 | |
Thickness (mm) | 0.4 – 0.8 |
Easily wettable
High resistance to fouling
High temperature endurable
High temperature applications
HIGH MECHANICAL STRENGTH
High capacity with low pressure drop
Mechanically robust, lesser probability of breakage
Good liquid/gas distribution and high mass transfer efficiency