RING-P Pall Ring
Pall Rings:
Pall ring is used for filling work volume of packed columns and devices. It is aimed at increasing intensity of heat exchange and mass-transfer processes in chemical, petrochemical, oil-refining equipment, etc. Ring-R is also to be used in sewage and water supply systems, in ammonia and mineral fertilizers production.
Pall rings refer to random packing. Acid-resistant ceramic packing material is used for filling
packed columns of other mass transfer equipment which works at the temperature from 0 to 120 Celsius degree for acid
environment.
Comparing to Raschig rings, Pall rings are characterized by better throughput and lower
hydraulic pressure. They have also better separation efficiency and degree of wetting due to the perforated
structure. Their open, cross-linked design results in a highly efficient use of the ring's surface area, thereby
reducing pressure loss. Polypropylene and metal packing provide good gas distribution at high mass transfer.
P-Rings can be made of metal, polypropylene and ceramics.
Application Range:
- ethylene extraction columns;
- mass-tranfer columns separation devices;
- carbon dioxide and hydrogen sulphide absorbers and flash tower;
- liquid extractors;
- carbon monoxide converters;
- dimethyl terephthalate running column;
- NH3 extraction devices;
- petrochemical and medical equipment.
Metal Pall Rings RING-P
| Size (mm) | Bulk Density (kg/m³) | Quantity (pcs/m³) | Specific surface (m²/m³) |
| 16*16*0.3 | 360 | 201000 | 346 |
| 25*25*0.4 | 320 | 53500 | 212 |
| 25*25*0.5 | 400 | 53500 | 216 |
| 25*25*0.6 | 480 | 53500 | 219 |
| 38*38*0.4 | 218 | 15000 | 143 |
| 38*38*0.5 | 262 | 15180 | 145 |
| 38*38*0.6 | 328 | 15000 | 146 |
| 50*50*0.5 | 194 | 6500 | 106 |
| 50*50*0.7 | 285 | 6500 | 108 |
| 50*50*0.9 | 365 | 6500 | 109 |
| 76*76*1.0 | 268.8 | 1920 | 69 |
| 90*90*1.0 | 229 | 1160 | 62 |
Bulk density: except as stated below, value for Carbon Steel and Stainless Steel (within brackets).
Other materials: Copper x 1.14; Aluminium x 0.34; Monel metal x 1.14.
Ceramic Pall Rings RING-P
| Size (mm) | Thickness (mm) | Specific Surface (m²/m³) | Quantity (pcs/m³) | Bulk density (kg/m³) |
| 25 | 3 | 210 | 53000 | 580 |
| 38 | 4 | 180 | 13000 | 570 |
| 50 | 5 | 130 | 6300 | 540 |
| 80 | 8 | 110 | 1900 | 530 |
Plastic Pall Rings RING-P
| Size (mm) | Specific surface (m²/m³) | Quantity (pcs/m³) | Bulk Density (kg/m³) |
| 16×16×1 | 188 | 170000 | 85 |
| 25×25×1.2 | 175 | 53500 | 69 |
| 38×38×1.4 | 115 | 15800 | 63 |
| 50×50×1.5 | 93 | 6500 | 52 |
| 76×76×2.6 | 73.2 | 1927 | 41 |
| 100×100×3 | 52.8 | 1000 | 32 |
