Products Introduction
Plastic Lalu ring is an improved Pall ring, usually made of plastic Lalu ring made of heat-resistant, chemical-resistant plastics, including PP, PE, RPP, PVC, CPVC and PVDF. Its open construction ensures regular flow through the packed bed, resulting in minimal pressure drop. The mass transfer unit has the characteristics of low height, large volume, high flooding point, uniform gas-liquid contact, small specific gravity, and high mass transfer efficiency. It is suitable for a wide range of medium temperatures from 60°C to 280°C. It is widely used in various separation and absorption operations, such as desorption devices, atmospheric and vacuum devices, decarbonization and desulfurization systems, and separation of ethylbenzene, isooctane and toluene.
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Product Name |
Plastic Ralu Ring |
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Material |
PP, PE, RPP, PVC, CPVC, PVDF, etc. |
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Life Span |
>3 years |
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Size (Inch/mm) |
Surface Area (m2/m3) |
Void Volume (%) |
Packing Number (pieces/m3) |
Packing Density (Kg/m3) |
|
|
3/5" |
15 |
320 |
94 |
170000 |
80 |
|
1" |
25 |
190 |
88 |
36000 |
46.8 |
|
1-1/2" |
38 |
150 |
95 |
13500 |
65 |
|
2" |
50 |
110 |
95 |
6300 |
53.5 |
|
3-1/2" |
90 |
75 |
90 |
1000 |
40 |
|
5" |
125 |
60 |
97 |
800 |
30 |
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Feature |
High void ratio, low pressure drop, low mass-transfer unit height, high flooding point, uniform gas-liquid contact, small specific gravity, high efficiency of mass transfer. |
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Advantage |
1. Their special structure make it has big flux, low pressure drop, good anti-impaction capability. 2. Strong resistance to chemical corrosion, large void space. energy saving, low operation cost and easy to be load and unload. |
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Application |
It is widely apply in all kinds of separation, absorption and desorption device, atmospheric and vacuum distillation device, decarburization and desulfurization system, ethylbenzene, iso-octane and toluene separation. |
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Plastic Ralu Ring is an improved pall ring; their open structure ensures a regular flow through the packed bed resulting in a minimal pressure drop.
Plastic Ralu Rings are featured with 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°C to 150°C.
Product Material
Plastic Ralu Ring is made of 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).
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Performance/Material |
PE |
PP |
RPP |
PVC |
CPVC |
PVDF |
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Density (g/cm3) |
0.94-0.96 |
0.89-0.91 |
0.93-0.94 |
1.32-1.44 |
1.50-1.54 |
1.75-1.78 |
|
Working temperature |
≤90°C |
≤100°C |
≤120°C |
≤60°C |
≤90°C |
≤150°C |
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Chemical corrosion resistance |
Good |
Good |
Good |
Good |
Good |
Good |
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Crush strength (N/mm) |
>6.0 |
>6.5 |
>7.0 |
>6.0 |
>8.0 |
>10.0 |
Plastic Ralu Ring is widely apply in all kinds of separation, absorption and desorption device, atmospheric and vacuum distillation device, decarburization and desulfurization system, ethylbenzene, iso-octane and toluene separation.
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Dimension d×h×δ (mm) |
Specific surface area (m2/m3) |
Void volume (%) |
Dry packing factor (m-1) |
Bulk number (PCS/m3) |
Bulk density (kg/m3) |
|
38×38×1.4 |
155 |
89 |
220 |
13600 |
94.5 |
|
50×50×1.5 |
93 |
90 |
127 |
6300 |
94.9 |
|
76×76×2.6 |
73.2 |
92 |
94 |
1830 |
96 |
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