The Pall ring is a kind of new type and high efficient packing that is improved on the basis of the Rasching ring. Hua Long pall ring is a proven design that provides higher capacity and lower pressure drop than trays and other random packings. The opened cylinder walls and inward bent protrusions of the Pall Ring allow greater capacity and lower pressure drop than standard cylindrical rings. This open ring design also maintains an even distribution and resists wall-channeling tendencies.
Specifications (mm) |
D*H*δ (mm) |
Specific surface area (m2/m3) |
Void volume (m2/m3) |
Bulk number (n/m3) |
Bulk density (kg/m3) |
Dry packing (factorm-1) |
Φ25 |
25*25*3.0 |
220 |
0.75 |
50000 |
600 |
565 |
Φ38 |
38*38*4 |
150 |
0.78 |
13400 |
540 |
356 |
Φ50 |
50*50*5 |
120 |
0.78 |
6400 |
555 |
252 |
Φ80 |
80*80*8 |
75 |
0.80 |
1950 |
520 |
146 |