| Size (Inch/mm) | Bulk density (304,kg/m3) | Number (per m3) | Surface area (m2/m3) | Free volume (%) | Dry packing factorm-1 | |
| 1/4” | 6*6*0.3 | 900 | 4000000 | 904 | 88.6 | 1307.4 |
| 3/8” | 10*10*0.3 | 480 | 768000 | 482 | 93.8 | 583.8 |
| 1/2” | 13*13*0.3 | 420 | 410000 | 415 | 4.8 | 489.2 |
| 5/8” | 16*16*0.3 | 348 | 201000 | 344 | 95.5 | 393.2 |
| 1” | 25*25*0.4 | 288 | 53500 | 212 | 96.2 | 229.8 |
| 1” | 25*25*0.5 | 367 | 53500 | 216 | 95 | 237.2 |
| 1” | 25*25*0.6 | 439 | 53500 | 219 | 94.2 | 244.1 |
| 1.5” | 38*38*0.4 | 193 | 15180 | 143 | 97.2 | 148.4 |
| 1.5” | 38*38*0.5 | 246 | 15180 | 145 | 96.7 | 151.7 |
| 1.5” | 38*38*0.6 | 328 | 15000 | 146 | 95.9 | 154.6 |
| 2” | 50*50*0.5 | 185 | 6500 | 106 | 97.5 | 128.5 |
| 2” | 50*50*0.8 | 315 | 6500 | 108 | 96.8 | 130.5 |
| 2” | 50*50*1.0 | 380 | 6500 | 132.5 | 96.0 | 134.0 |
| 3” | 76*76*1.0 | 265 | 1920 | 69 | 97.4 | 79.6 |
| 3.5” | 89*89*1.0 | 224 | 1220 | 61 | 97.1 | 66.2 |
Large surface area for efficient mass transfer
Low pressure drop with high void space
Good liquid distribution and wetting performance
Available in metal, plastic, and ceramic materials
High mechanical strength and chemical resistance
Easy installation and replacement
Suitable for distillation, absorption, and stripping systems
1. Distillation Columns
Used in petroleum refining, chemical processing, and solvent recovery systems to enhance vapor–liquid contact and improve separation efficiency.
2. Gas Absorption Towers
Applied in scrubbers to remove contaminants such as SO₂, CO₂, H₂S, ammonia, and VOCs from industrial exhaust streams.
3. Stripping and Desorption Units
Used in wastewater treatment and chemical plants for stripping dissolved gases (e.g., oxygen, nitrogen, CO₂) from liquids.
4. Air Pollution Control Systems
Installed in wet scrubbers and absorption reactors to increase gas–liquid interaction and improve pollutant removal efficiency.
5. Heat Recovery and Cooling Towers
Random packing enhances heat and mass transfer performance in cooling towers, gas cooling sections, and heat recovery units.
6. Water and Wastewater Treatment
Used in biological trickling filters, biofilm reactors, and aeration systems to provide effective support surfaces for microbial growth.
7. Chemical and Petrochemical Processing
Ideal for reactors and contactors where improved liquid distribution and reduced pressure drop are required.



