Beijing Silk Road Enterprise Management Services Co.,LTD
People-oriented, good faith service, the pursuit of excellent quality.
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Pall ring was invented in Germany in 1940s. Firstly, the machine stamped two rows of window tongue leaves towards inside of the ring wall. Secondly, The improvement is to largely promote gas and liquid contacting situation in the packing bed without increasing surface area. Finally, the use of pall rings means the world gradual acceptance of opening pore type packing.
| diameter×height×thickness (mm) | specific surface area (m2/m3) | Porosity (m3/m3) | Number in 1 m-3 | Density of the pile (kg/m3) | Dry filler factor F |
| 76×76×1.2 | 71 | 0.961 | 1830 | 308 | 80 |
| 50×50×0.7 | 109 | 0.960 | 6500 | 275 | 124 |
| 38×38×0.6 | 146 | 0.959 | 15180 | 318 | 165 |
| 25×25×0.5 | 219 | 0.950 | 51940 | 393 | 255 |
| 16×16×0.3 | 362 | 0.949 | 214000 | 396 | 423 |
High resistance to fouling
Multiple materials available
High temperature applications
Mechanically robust, lesser probability of breakage
Good liquid/gas distribution and high mass transfer efficiency
1. Liquid extractors;
2. NH3 extraction devices;
3. Ethylene extraction columns;
4. Carbon monoxide converters;
5. Petrochemical and medical equipment.
6. Dimethyl terephthalate running column;
7. Mass-transfer columns separation devices;
8. Carbon dioxide and hydrogen sulphide absorption and flash tower.
