Pall Ring packing is a bulk packed bed designed to improve the main disadvantages of Raschig rings. The main difference is that a rectangular hole is opened on the wall, and the hole is rounded out of the window, because the center ring of the small window frame of the annular wall is configured as a single-layer window with a diameter of 50mm, and a double layer of 50-100mm Window design. And the upper and lower layers overlap the window position. This design allows the gas and liquid distribution characteristics to significantly improve the Raschig ring, especially the internal surface area can be fully utilized,

In the same volume of Pall ring packing, the weight of the Pall ring packing is determined to be different. The plastic Pall ring packing has the lightest weight, and the plastic Pall ring packing covering an area of 1 cubic meter has different weights of about 40-60 kg. / M3, light weight, acid and alkali resistance, light weight, 0.71775, easy to transport and install. 

The disadvantage is that it is not resistant to high temperatures. When the working temperature is higher than 100 degrees Celsius, the deformation of the packing will affect the mass transfer filtration effect. Metal Pall ring packing is slightly larger than 1 cubic meter of metal Pall ring packing, with different specifications and weight of about 200-350kg / M3. It has the advantages of high temperature resistance, convenient transportation and installation. The disadvantage is that it is not resistant to strong acids and alkalis, and the use time is slightly longer. Rust can cause defects such as plugging of fillers. 

According to the weight of 1 cubic meter, ceramic Pall ring packing can be 550-700kg / M3 according to different specifications. Bauer rings are resistant to acids, alkalis and high temperatures, but they are too heavy and fragile. Be careful when loading. Broken packing should also be cleaned in time, otherwise it will cause blockage.