The materials of metal saddle ring packing mainly include stainless steel, carbon steel, etc. Different materials have different corrosion resistance, strength and prices. The stainless steel material packing has good corrosion resistance and is suitable for handling highly corrosive media; the carbon steel material packing has a relatively lower price, but its corrosion resistance is poor. It needs to be selected based on the specific operating environment and medium properties.

When choosing the specifications of metal saddle ring packing, factors such as the diameter of the tower, processing capacity, medium properties, operating pressure and temperature should be comprehensively considered to ensure that the packing can meet the process requirements and achieve the best operating effect. 

The size specifications of metal saddle ring packing are usually indicated by the nominal diameter. Common specifications include 16mm, 25mm, 38mm, 50mm, and 76mm, etc. Different sizes are suitable for towers of different diameters.

Small size specifications: Such as 16mm and 25mm metal saddle ring packing have a relatively larger specific surface area, which is suitable for small towers or situations requiring high mass transfer efficiency. In small-scale laboratory distillation towers, using small-sized metal saddle ring packing can increase the gas-liquid contact area and improve separation accuracy.

Medium size specifications: 38mm and 50mm packing are widely used and are suitable for medium-sized chemical production towers. They achieve a good balance between processing capacity and mass transfer efficiency, being able to meet certain production capacity requirements while ensuring good separation effects.

Large size specifications: Metal saddle ring packing with a diameter of 76mm and above has a larger voidage and lower pressure drop, which is suitable for large tower equipment or situations with large processing capacity and lower resistance requirements. For example, in large-scale petrochemical absorption towers, using large-sized packing can reduce gas resistance and lower energy consumption.