1. highly efficient packing of small particles
2. mainly for lab and low-volume, high-purity product separation process
θ packing ring also known as Dixon Ring, is a highly efficient packing of small particles, made of metal mesh, packing the same diameter and height. θ ring is used mainly for laboratory and low-volume, high-purity product separation process. θ ring packing’s pressure drop is related to gas velocity, liquid spray volume, and material weight, surface tension, viscosity and characteristics of fill factors and pre-fill liquid. Θ ring hysteresis loop filler material than similar entities fill large, θ ring surface wetting situation completely than ordinary ceramic ring, film-forming rate, and thus more efficient. θ ring packing with the theoretical plate number of the increase in gas velocity increased, with the filler surface wettability and reduce the rate of decline.
| Spec mm | Net Item | Tower Dia mm | Theoretical plate pcs/m | Bulk density Kg/m3 | Surface area m2/m3 |
| φ2×2 | 100 | φ20~35 | 50~60 | 670 | 3500 |
| φ3×3 | 100 | φ20~50 | 40~50 | 520 | 2275 |
| φ4×4 | 100 | φ20~70 | 30~40 | 380 | 1525 |
| φ5×5 | 100 | φ20~100 | 20~30 | 295 | 1180 |
| φ6×6 | 80 | φ20~150 | 17~20 | 280 | 1127 |
| φ7×7 | 80 | φ20~200 | 14~17 | 265 | 1095 |
| φ8×8 | 80 | φ20~250 | 11~14 | 235 | 987 |
| φ9×9 | 80 | φ20~300 | 8~11 | 200 | 976 |
