Metal-ring moment saddle packing is developed by Norton Company in America. Its shape is between annular and saddle, so it has the advantages of both. On the structure of the metal moment saddle ring packing on the basis of the saddle added ring reinforcement, to avoid overlap, to ensure a certain strength and rigidity, out of several small claws, increase the gas-liquid agitation, strengthen the mass transfer, resulting in performance.

Metallic moment saddles are abbreviated as interlocks packing. The new packing, used to equip new packed towers, is 35% lower in height and 30% smaller in diameter than plate towers, or increases efficiency by 10-30% and reduces pressure losses by 20-60%. The experimental study of dry distillation instead of wet distillation shows that the investment can be reduced by 20%. In conclusion, the new type of toroidal saddle can increase the yield, reduce energy consumption or cost, and improve the separation efficiency.

● Metallic moment saddle ring is a kind of filler, can be widely used in rectification, absorption and other reactions.

● Metal moment saddle ring can be used in vacuum tower, also can be used in high pressure tower.

● Metal moment saddle ring can be applied to different diameters of mass transfer tower. It is often used in vacuum towers where the low pressure drop is of critical importance. It is also often used in high pressure towers, whose capacity is much greater than typical tray.