The main performance parameters of raschig ring filler include specific surface area, void ratio, bulk density, bulk weight, dry filler factor, etc. These parameters together determine the performance and effectiveness of raschig ring fillers in industrial applications.

Raschig ring quarter-on-quarter surface area: represents the sum of the geometric surface areas of the filler monomer in the raschig ring filler layer per unit volume. The raschig ring of different specifications has different surface areas. For example, the surface area of the raschig ring of 6mm×6mm is about 712m²/m³, while the surface area of the raschig ring of 100mm×100mm is about 70m²/m³. The larger the surface area, the higher the mass transfer efficiency.

The porosity of the raschig ring: refers to the fraction of the void (or free) volume in the raschig ring per unit volume, also known as the free volume ratio of the packing bed. The size of the void ratio affects the fluid's ability to pass through and pressure drop. Generally speaking, the greater the void ratio, the stronger the fluid passes through, and the smaller the pressure drop. The void ratio of ceramic raschig ring fillers is usually between 60% and 80%.

raschig ring stacking density: refers to the mass of raschig ring stacking per cubic meter, unit in kg/m³. It is a parameter that must be considered when designing the filler layer height and when designing the filler support plate. Different specifications of raschig rings have different bulk density, usually between a few hundred to more than one thousand kilograms per cubic meter.

raschig ring stacking weight: related to the stacking density, and is also affected by factors such as filler specifications and shapes.

raschig ring dry filler factor: represents the influence of raschig ring structure and dimensional characteristics on fluid mechanical properties.