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RING -P Pall Ring


Pall Rings:

Pall ring is used for filling work volume of packed columns and devices. It is aimed at increasing intensity of heat exchange and mass-transfer processes in chemical, petrochemical, oil-refining equipment, etc. Ring-R is also to be used in sewage and water supply systems, in ammonia and mineral fertilizers production.

Pall rings refer to random packing. Acid-resistant ceramic packing material is used for filling packed columns of other mass transfer equipment which works at the temperature from 0 to 120 Celsius degree for acid environment.

Comparing to Raschig rings, Pall rings are characterized by better throughput and lower hydraulic pressure. They have also better separation efficiency and degree of wetting due to the perforated structure. Their open, cross-linked design results in a highly efficient use of the ring's surface area, thereby reducing pressure loss. Polypropylene and metal packing provide good gas distribution at high mass transfer.

P-Rings can be made of metal, polypropylene and ceramics.

Application Range:

  • ethylene extraction columns;
  • mass-tranfer columns separation devices;
  • carbon dioxide and hydrogen sulphide absorbers and flash tower;
  • liquid extractors;
  • carbon monoxide converters;
  • dimethyl terephthalate running column;
  • NH3 extraction devices;
  • petrochemical and medical equipment.

Metal Pall Rings RING -P

Metal Pall Rings RING -P

Size (mm) Bulk Density (kg/m³) Quantity (pcs/m³) Specific surface (m²/m³)
16*16*0.3
360
201000
346
25*25*0.4 320 53500 212
25*25*0.5 400 53500 216
25*25*0.6 480 53500 219
38*38*0.4 218 15000 143
38*38*0.5 262 15180 145
38*38*0.6 328 15000 146
50*50*0.5 194 6500 106
50*50*0.7 285 6500 108
50*50*0.9 365 6500 109
76*76*1.0 268.8 1920 69
90*90*1.0 229 1160 62

  Bulk density: except as stated below, value for Carbon Steel and Stainless Steel (within brackets).

  Other materials: Copper x 1.14; Aluminium x 0.34; Monel metal x 1.14.


Ceramic Pall Rings

Ceramic Pall Rings RING -P

Size (mm) Thickness (mm) Specific Surface (m²/m³) Quantity (pcs/m³) Bulk density (kg/m³)
25 3 210 53000 580
38 4 180 13000 570
50 5 130 6300 540
80 8 110 1900 530

Plastic Pall Rings

Plastic Pall Rings RING -P

Size (mm) Specific surface (m²/m³) Quantity (pcs/m³) Bulk Density (kg/m³)
16×16×1
188
170000
85
25×25×1.2 175
53500 69
38×38×1.4 115
15800 63
50×50×1.5 93 6500 52
76×76×2.6 73.2 1927 41
100×100×3 52.8 1000 32
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