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metal pall ring(raflux ring) is a open-hole ring packing. which height and diameter is 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 liquid & gas pass in packing tower pass freely from the windows of the rings.
metal pall ring's(raflux ring) material:
Stainless steel carbon steel such as 304, 304L, 410,316,316L, all of the following bulk density refer to stainless steel( AISI304) in the material thickness shown, other wall thicknesses are available on request.
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Sizes
mm
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Bulk density
Kg/m3
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Number per
m3
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Surface area
m2/m3
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Free volume
%
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16*16*0.5
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365
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143000
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239
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92.8
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25*25*0.6
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427
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55900
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215
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93.4
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38*38*0.8
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365
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14500
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135
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94.5
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50*50*0.8
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395
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6500
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105
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94.98
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76*76*1
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384
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1870
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80
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95.1
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