| Ceramic Pall Ring |
Ceramic Pall Ring is a kind of random packing further developed based on Rischig Ring, with two layers of windows opened along its tube wall. The outside diameter is equal to its height. For each layer, there are 5 ligules bending inward the axes of the ring. The open position for windows between the two layers is staggered oppositely.
Generally, the area for open windows occupies 30% of the total area of the tube wall. It helps vapor and liquid flow freely through these windows, making full use of the ring’s inner surface to improve distribution of vapor-liquid.
With the characters of high mechanical strength, high chemical stability, and excellent heat endurance, Ceramic Pall Ring can resist high temperature, acid (except HF), alkali, salt and various organic solvents. It's widely applied in various packing towers of desiccation, absorption, cooling, washing, and regeneration in industries of petrochemical, chemical, metallurgy, gas and oxygen generation.
If ring's size is over 100mm, it's usually filled in the column orderly. If its size is less than 90mm, pall ring is stacked in the column randomly.
SS304 Pall ring, SS316 Pall ring, PVC pall ring, CPVC Pall ring, PVDF pall ring, PTFE pall ring, Ceramic pall ring |
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Technical Specification
Size (mm) |
Surface area (m²/m³) |
Free volume (%) |
Number per m³ |
Bulk density (Kg/m³) |
Dry Packing Factor (m-1) |
Φ 25 |
220 |
73 |
54000 |
620 |
565 |
Φ 38 |
150 |
75 |
13400 |
570 |
356 |
Φ 50 |
120 |
78 |
6800 |
550 |
252 |
Φ 80 |
75 |
80 |
1950 |
520 |
146 |
Ceramic Cross Partition Ring |
Ceramic Cross Partition Ring is a kind of random packing further improved on the basis of Raschig Ring, adding the cross clapboard inside the ring. It increases the ring’s surface area, improving significantly the mass transfer efficiency of vapor and liquid.
Generally, cross partition ring is required to stack orderly in the column due to its big size. Currently, cross partition rings, size between Φ80-Φ150mm, are used as the support material of other random packing at the bottom of column, which accumulation voidage is over 60%.
With the characters of high mechanical strength, high chemical stability, and excellent heat endurance, Cross Partition Ring can resist high temperature, acid (except HF), alkali, salt and various organic solvents. It's widely applied in various packing towers of desiccation, absorption, cooling, washing, and regeneration in industries of petrochemical, chemical, metallurgy, gas and oxygen generation.
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Technical Specification
Size, mm |
D x H x T, mm |
Surface area, m²/m³ |
Free volume, % |
Number per m³ |
Bulk density , Kg/m³ |
Dry Packing Factor, m-1 |
Φ 50 |
50x40x50x5 |
145 |
50 |
6400 |
600 |
565 |
Φ 80 |
80x64x80x8 |
120 |
56 |
1950 |
820 |
356 |
Φ100 |
100x80x100x10 |
110 |
53 |
1000 |
850 |
252 |
Φ120 |
120x96x120x12 |
75 |
55 |
370 |
860 |
146 |
Φ150 |
150x120x150x15 |
60 |
58 |
295 |
980 |
101 |
Ceramic Super Saddle
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Ceramic Super Saddle is a kind of random packing further developed on the basis of Saddle Ring, which both smooth edges are changed to hackly or ripple edges. Comparing with normal saddle, such structure of super saddle can ensure that interspace will be increased a lot when saddles are stacked in the column randomly.
Therefore, the resistance to vapor-liquid is decreased and it facilitates flow and distribution of vapor-liquid through the packing bed. As a result, pressure drop is low and mass transfer efficiency is high.
With the characters of high mechanical strength, high chemical stability, and excellent heat endurance, Super Saddle can resist high or low temperature, acid (except HF), alkali, salt and various organic solvents. It's widely applied in various packing towers of desiccation, absorption, cooling, washing, and regeneration in industries of petrochemical, chemical, metallurgy, gas and oxygen generation.
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Chemical Index
Index |
Value |
Porosity (Vol%) |
1 |
Specific heat (KJ/Kg) |
840-900 |
Crush strength (N/mm2) |
390-420 |
Specific gravity (g/cm3) |
2.3-2.45 |
Acid resistance (%) |
99.98 |
Firing temperature (℃) |
1280 – 1320 |
Softening temperature (℃) |
>1400 |
Density (Kg/m3) |
2300 – 2400 |
Water absorption (%) |
<0.2 |
Thermal expansion (10-6mm/mm℃) |
4.7 |
Hardness Scale (Moh's) |
7 – 8 |
Comprehensive strength (N) |
5600 |
Shock strength (Kgf.cm/cm2) |
1.0 – 1.5 |
Chemical Composition
| Index |
SiO2 |
Al2O3 |
SiO2+Al2O3 |
Fe2O3 |
CaO |
MgO |
K2O+Na2O |
Other |
| Value |
>69% |
15-23% |
>92% |
<1% |
<0.25% |
<0.2% |
2-4% |
<1% |
Technical Specification |
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