Since 1914 when F.Raschig invented this type of ring for tower packing, random tower pickings have been developed extensively. The R-ring is now used in many applications, but particularly in supporting catalyst beds.
Metal Raschig Rings are available in a wide range of carbon and stainless steels, 304, 304L, 410,316, 316L etc..
Geometric Parameters
Size (mm)
Bulk density (kg/m3)
Number per m3
Surface area (m2/m3)
Free volume (%)
15×15×0.3
379
230000
350
95
25×25×0.4
318
51000
216
96
25×25×0.5
400
220
35×35×0.8
430
19000
150
93
50×50×0.5
203
6500
106
97.4
50×50×0.7
285
108
96.4
50×50×0.8
325
7000
109
76×76×0.8
212
1830
69
97.3
80×80×1.2
300
1600
65
90×90×1.0
236
1160
62
Ceramic Raschig Ring has excellent acid resistance and heat resistance. It can resist to corrosion of various inorganic acids, organic acids and organic solvents except hydrofluoric acid, and can be used in high or low temperature conditions. Consequently the application range is very wide. The packing can be used in the drying columns, absorbing columns, cooling towers, scrubbing towers and actifier columns in chemical industry, metallurgy industry, coal gas industry, oxygen producing industry, etc.
Sizes (mm)
Thickness (mm)
Packing factor ( m-1)
6 × 6
1.6
712
3022935
961
5249
12.5 ×12.5
2.4
367
64
377867
881
1903
16×16
2
305
73
192 500
730
900
19×19
243
72
109122
801
837
25×25
3.2
190
74
47675
673
508
38×38
4.8
121
13667
689
312
40×40
4.5
126
75
127000
577
50×50
81
6 000
457
6.4
92
5792
657
213
80×80
9.5
46
80
1910
714
280
100×100
10
70
1000
700
Plastic Raschig ring are in thin wall, low resistance, high void and capacity. They are light, reusable, easy to load and unload result in low operation cost. They are suit for washing, dusting and absorption at low temperature.
product
size
D*H*T（mm）
Surface area m2/m3
No.elements per/m3
Plastic rasching ring
Φ25
25*25*1.0
88
48500
Φ50
50*50*1.5
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