Metal Pall Ring
Introduction
Metal Pall Ring is an important type of pall ring. Compared with plastic pall ring, the Metal Pall Ring has better corrosion and rust resistance to be used in the extremely harsh environments. Metal Pall Ring is mainly made of carbon steel, galvanized steel, stainless steel or other materials. Stainless steel pall ring is the most popular and widely used type because of the best corrosion resistance and chemical stability performance.
Similar to the ceramic pall ring, there are two layers of windows on the cylinder wall. And each layer has five ligules, which is punched and bending inward the axe of ring.
Specifications of Metal Pall Ring
Material: carbon steel, stainless steel, Monel, Titanium, aluminum and many other high alloy and duplex specialty metal.
Diameter: 16 mm, 25 mm, 38 mm, 50 mm, 76 mm and 90 mm.
Thickness: 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm,0.9 mm and 1.0 mm.
Ceramic Pall Ring is a type of classical random packing, which is developed from the Raschig ring. Commonly, there are two layers of windows opened along its cylinder wall. Each layer has five ligules bending inward the axes of the ring, which is similar to the metallic pall ring and plastic. But the layer and quantity of ligules may different according to the height and diameter variation.
Generally, the opening area occupies 30% of the total area of the cylinder wall. This design helps vapor and liquid flow freely through these windows, making full use of the inner surface of the ring to improve the distribution of vapor and liquid. It can also improve the separating efficiency.
Features Of Metal Pall Ring
High loading capacity and throughput.
Low pressure drops.
Good liquid and gas separation capacity and high efficiency.
Corrosion and rust resistance.
Acid, alkali, salty, and other chemical resistance.
Temperature resistance.
High mechanical capacity and lesser probability of breakage.
Various sizes and special sizes can be customized.
Applications of metal pall ring
Separation and absorption applications at atmospheric pressure.
Places where the low pressure drop is critical under vacuum.
Steam stripping applications.
Quench towers.
Direct contact cooling applications.
| Specifications Of Metal Pall Ring | ||||||
| Item | Size (D × T × H ) (mm) | Bulk density (kg/m3) | Filling quantity | Surface area (m2/m3) | Voidage (%) | |
| PRMT-01 | 16 × 0.3 × 16 | 360 | 201000 | 346 | 95.5 | |
| PRMT-02 | 25 × 0.4 × 25 | 302 | 5100 | 212 | 96.2 | |
| PRMT-03 | 25 × 0.5 × 25 | 400 | 54000 | 216 | 95 | |
| PRMT-04 | 25 × 0.6 ×25 | 461 | 5400 | 219 | 94.2 | |
| PRMT-05 | 38 × 0.4 × 38 | 262 | 15180 | 145 | 96.7 | |
| PRMT-06 | 38 × 0.6 × 38 | 328 | 15000 | 146 | 95.9 | |
| PRMT-07 | 50 ×0.5 × 50 | 194 | 6500 | 106 | 97.5 | |
| PRMT-08 | 50 × 0.7 × 50 | 285 | 6500 | 108 | 96.4 | |
| PRMT-09 | 50 × 0.9 × 50 | 365 | 6500 | 109 | 95.4 | |
| PRMT-10 | 76 × 0.8 × 76 | 205 | 183 | 69 | 97.4 | |
| PRMT-11 | 90 × 1.0 × 90 | 229 | 1160 | 62 | 97.1 | |