Within the arc of the packing ring eighty-four reasonable geometric symmetry, high structural uniformity of porosity, eight and four loop-loop alternating arrangement along the axial direction, along the arc into the ring off, so that the filler continuously without breaking the surface, and evenly distributed in space, compared with the pall ring, throughput can be increased 15-30%, 20-30% reduction in pressure drop. 
 Model 
 model specifications 
 d × h × δ 
 mm surface area 
 α 
 m2/m3 porosity 
 ε 
 m3/m3 accumulation of the number of 
 η 
 n/m3 dry packing factor 
 α/ε3 
 m-1 
 Dg38 38 × 38 × 0.6 138 0.947 13000 164 
 Dg50 50 × 50 × 0.8 121 0.95 6600 144