Pall Ring

Pall Ring

Despite the fact that Raschig Ring and Pall Ring have similar cylindrical dimensions, Pall ring has two rows of punched holes with the tabs curved inwards, which significantly increases the performance of the nozzle in relation to throughput, efficiency and pressure drop . We can offer this type of packing in various plastic variations: polypropylene, PVDF, HDPE, glass-filled polypropylene and PVC.

    Power and pressure drop
  1. Most suitable for low pressure drops, high performance;
  2. A wide range of sizes allows you to work with optimal efficiency and provides good throughput;
  3. Consistent ratio of free and blocked passes, regardless of direction;
  4. Large specific surface area: the volume coefficient increases the rate of surface renewal of the liquid film to improve mass transfer.
    Delay and two-phase contact
  1. Promotes highly efficient two-phase contact and distribution;
  2. A relatively high liquid reserve contributes to high absorption efficiency, especially in cases where the reaction rate is slow;
  3. Uninterrupted and sequential passages for gas and liquid flow
    Universality
  1. The open, cross-linked design ensures highly efficient use of the ring's surface area;
  2. Resistant to liquid and vapor distribution.
    Mechanical strength
  1. The internal transverse structure of the Diametric spars makes the packing mechanically strong and suitable for use in deep columns.
Table 1: The Technical Parameter of Plastic Pall Ring
ArticleSize
mm
Surface Area
(m2/m3)
VoidageBulk Number
(n/m3)
Bulk Density
(kg/m3)
Dry Packing Factor
(m-1)
1001182 16 × 16 × 1 188 91% 170000 85 275
1015405 25 × 25 × 1.2 175 90% 53500 69 239
1020248 38 × 38 × 1.4 115 89% 15800 69 220
1019281 50 × 50 × 1.5 93 90% 6500 52 127
1019282 76 × 76 × 2.6 73.2 92% 1927 48 94
1019283 100 × 100 × 3 52.8 94% 1000 48 82
Table 2: The Technical Parameter of Plastic Pall Ring PTFE
ArticleSize
(mm)
Surface Area
(m2/m3)
Voidage
%
Number
(n/m3)
Bulk Density 304
(kg/m3)
1019286 20 267 92.8 110000 522
1019287 25 219 93.4 56000 423
1019288 38 165 94.6 14000 368
1019289 50 113.5 94.9 6500 390
1019290 65 84 94.8 4600 480
1019291 76 73 92 1850 328