1. Ceramic pall ring can be used in high or low temperature, It can be used as drying, absorbing, cooling and regenerating tower packing in chemical, metallurgic, coal gas and air separation industry, etc.
Main specification of Ceramic Pall Ring
Size mm | diameter×height×thickness mm | Specific area m2/m3 | Void volume m3/m3 | Bulk density kg/m3 | Number per volume pcs/m3 | Drying packing factor m-1 |
φ25 | 25×25×3 | 210 | 0.73 | 630 | 36000 | 540 |
φ38 | 38×38×4 | 140 | 0.75 | 590 | 12000 | 332 |
φ50 | 50×50×5 | 100 | 0.78 | 520 | 4900 | 210 |
φ76 | 76×76×9 | 70 | 0.80 | 470 | 1500 | 137 |
2.metallic pall ring
Technical data of metal pall ring (304)
D*H*T (mm) | Surface area (m²/m³) | Free volume (%) | Number per m³ | Bulk density (Kg/m³) |
16*16*0.4 | 239 | 92.8 | 143000 | 365 |
25*25*0.6 | 219 | 93.4 | 55900 | 427 |
38*38*0.8 | 129 | 94.5 | 13000 | 365 |
50*50*1.0 | 112 | 94.9 | 6500 | 395 |
76*76*1.2 | 72 | 95.1 | 1830 | 384 |
Material available: carbon steel, stainless steel including 304, 304L, 410,316, 316L etc.
Advantage:1)Lower pressure drop 2)Good liquid/gas distribution and higher mass transfer efficiency3)Versatility, easily wettable, high resistance to fouling, high temperature 4)High Mechanical Strength and temperature resistance, suitable for deeper beds Application:Absorption,Aeration,Degassing,Desorption, Distillation,Stripping,Heat Recovery, Extraction etc.
3. Plastic pall ring can be used in the packing towers in petroleum industry, chemical industry, alkali-Chloride industry, coal gas.
Physical & chemical properties of plastic random packing
Materials Properties | PE | PP | RPP | PVC | CPVC | PVDF |
Density, g/cm3 | 0.94-0.96 | 0.89-0.91 | 0.92-0.94 | 1.32-1.44 | 1.50-1.54 | 1.75-1.78 |
Compression Strength, N/mm | >6.0 | >6.5 | >7.0 | >6.0 | >8.0 | >10.0 |
Operation temperation, °C | ≥90 | ≥ 100 | ≥120 | ≥60 | ≥90 | ≥150 |
Major technical parameters of PP Pall Ring
Specification | external diameter×height×wall thickness mm | Specific area m2/m3 | Void volumn m3/m3 | Bulk Density kg/m3 | Number per volumn n/m3 | Drying packing factor m-1 |
φ16 | 16×16×1.0 | 274 | 0.90 | 91 | 177600 | 376 |
φ25 | 25×25×1.2 | 213 | 0.91 | 85 | 48300 | 285 |
φ38 | 38×38×1.2 | 151 | 0.91 | 82 | 15800 | 200 |
φ50 | 50×50×1.2 | 93 | 0.90 | 56 | 6300 | 127 |
φ76 | 76×76×2.5 | 72 | 0.92 | 62 | 1930 | 92 |
pall ring