Metal Pall Ring is made of material like carbon steel, stainless steel or Aluminum alloy, etc. The product has features such as thin wall, heat resistant, high free volume, high capacity, low resistance, high separation efficiency and so on. It is especially suitable for rectification towers under vacuum to treat thermo sensitive, decomposable, polymerizable or cokable systems, so the Metal Pall Ring is widely used in packing towers in petrochemical industry, chemical fertilizer industry and environmental protection, etc.
Geometric Parameters
Sizes (mm)
Bulk density (kg/m3)
Number (per m3)
Surface area (m2/m3)
Free volume (%)
16*16*0.3
360
201000
346
95.5
25*25*0.4
302
51000
212
96.2
25*25*0.5
400
216
95
25*25*0.6
461
219
94.2
38*38*0.4
218
15000
143
97.2
38*38*0.5
262
15180
145
96.7
38*38*0.6
328
146
95.9
50*50*0.5
194
6500
106
97.5
50*50*0.7
285
108
96.4
50*50*0.9
365
109
95.4
76*76*0.8
205
1830
69
97.4
90*90*1.0
229
1160
62
97.1
Ceramic Pall Ring is a open-hole ring packing,which high and diameter is the same and with 5 ligules toward inside at every floor. Usually the open surface is 30% of the whole wall surface, this character helps the liguid & gas pass in packing tower pass freely from the windows of the rings.
Ceramic pall 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.
Geometric Characteristic data
Plastic Pall Ring is made from heat resistant and chemical corrosion resistant plastics, including polyethylene (PE), polypropylene (PP), reinforced polypropylene (RPP), polyvinyl chloride (PVC), chloridized polyvinyl chloride (CPVC) and polyvinylidene fluoride (PVDF). It has features such as high free volume, low pressure drop, low mass-transfer unit height, high flooding point, uniform gas-liquid contact, small specific gravity, high mass transfer efficiency and so on, and the application temperature in media ranges from 60°Cto 150°C. For these reasons it is widely used in the packing towers in petroleum industry, chemical industry, alkali-Chloride industry, coal gas industry and environmental protection, etc.
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