Stainless Steel Pall Ring

Stainless steel Pall ring is a new technology improved on the basis of Raschig ring packing. Although the outer diameter of the ring is also the high diameter, two rows of windows with tongues extending inward are made on the ring wall. Each layer of window holes has five tongues, and the tongues overlap in the center of the ring. This design makes the ring wall open, which greatly improves the distribution characteristics of gas and liquid and fully utilizes the inner surface area of the ring. Super Packing Mall will teach you how to choose the correct stainless steel ball ring.

Pall Ring Specifications

What do this characteristic mean?

The geometric characteristic data for selecting stainless steel Pall ring packing mainly include specific surface area, porosity and packing factor, which are the basic parameters for evaluating the performance of the packing.

1. Void volume The void volume per unit volume of filler is called void ratio. The void volume in e is expressed as m3/m3, or the proportion of filler. The higher the porosity of the Pall ring packing, the greater the gas handling capacity and the lower the pressure. Therefore, porosity is another important indicator for evaluating filler performance.

2. The filler surface area per unit volume is called specific surface area, and the unit is m2/m3. The larger the specific surface area of the filler, the larger the gas-liquid mass transfer area provided. Therefore, specific surface area is an important indicator for evaluating filler performance.

3. The ratio of the specific surface area of the filling coefficient to the volume void ratio a/e3 is called the filling coefficient, represented by F, and the unit is 1/m, which represents the hydrodynamic properties of the filler. The smaller the f value, the smaller the flow resistance. The performance of the filler mainly depends on the liquid with a larger specific surface area (m2/m3 filler layer) having a better and even distribution on the filler surface. The air flow can be evenly distributed in the packing layer. The void ratio of the filler layer is large (m3/m3 filler layer). Under the same operating conditions, the larger the specific surface area of the filler, the more even the gas-liquid distribution, the better the surface wettability, and the higher the mass transfer efficiency. The greater the porosity of the filler, the more open the structure, the higher the mass transfer efficiency, and the lower the flow rate and pressure drop.