Introduction：It combines the advantages of round ring and saddle ring. A conjugate curve fin structure was adopted and there is a double-side flanging and proper height-diameter ratio. The contact among packing or between packing and tower wall are point contacts and thus will not generate cluster. It has average pore, low resistance and has the characteristic of structured pacing showing a direction arrangement when packing in mess so that better fluid dynamics and mass transfer performance are achieved.
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