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english-内测  的详细介绍

Metal Pall Ring is made of material like carbon steel, stainless steel or Aluminum alloy, etc. features such as thin wall, heat telephone 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.

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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

51000

216

95

25*25*0.6

461

51000

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

15000

146

95.9

50*50*0.5

194

6500

106

97.5

50*50*0.7

285

6500

108

96.4

50*50*0.9

365

6500

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

Normal size
Dia. x H x T
(mm)
Surface area
(m²/m³)
Void space
(%)
Bulk Density
(Kg/m3)
No.elements
( per /m3)
Packing factor
(m-1)
 
φ25
25X25X3
210
68
580
54000
565
φ38
38X38X4
150
75
570
13000
332
φ50
50X50X5
115
78
540
6800
210
φ80
80X80X8
98
80
520
1950
137

 

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.

Technical data
Size
mm
Surface area
m2/m3
Void space
%
Number
(per /m3)
Bulk density
(kg/ m3)
16*16*1
260
91
230000
141
25*25*1.2
210
90
53500
82
38*38*1.4
140
89
13500
54
50*50*1.5
100
90
6500
51
76*76*2.6
73
92
1930
58