Pall Ring

Pall Ring

Pall Ring is the most common and well-known random packing. It is made of a thin sheet of metal and has a special structure, has two curved holes with tabs inside the wall of the packing, each hole has five such tabs. As a percentage, the area of the holes occupies only 30% of the area of the packing. Such holes allow to improve the mass transfer of liquid and gas. Pall rings are designed to fill the working volumes of column and apparatus attachments in order to increase the intensity of heat and mass transfer processes in the equipment of chemical, petrochemical, oil refining and other industries, Sewerage and water supply systems, production of ammonia and mineral fertilizers. Pall rings are irregular packings. Acid-resistant ceramic pallet nozzles are designed for filling the packing columns of other heat exchange equipment operating at temperatures from 0 to 120 degrees for acidic environments

Table 1: The Technical Parameter of Metal Pall Ring
ArticleSize
(mm)
Bulk Density 304
(kg/m3)
Number
(n/m3)
Surface Area
(m2/m3)
VoidageDry Packing Factor
(m-1)
1019568 16 348 201000 344 95.5% 393.2
1001181 25 439 53500 219 94.2% 244.1
1008535 38 328 15000 146 95.9% 154.6
1019569 50 315 6500 108 96.8% 130.5
1008532 76 265 1920 69 97.4% 79.6