Hollow balls multi-faceted applications: crude oil vacuum distillation, vacuum distillation, separation of allyl diameter, isomer separation, extraction and distillation. Features: low pressure drop, large, high efficiency, high flexibility, the fill fluid redistribution performance. 
 Model Dimensions 
 D × H × δ 
 mm surface area 
 α 
 M / m3 Void 
 ε 
 % Number of accumulation 
 n/m3 accumulation of heavy 
 yp 
 kg/m3 dry packing factor 
 F 
 α/ε3/m-1 
 Dg76 76 × 76 150 92 2600 90 193 
 Dg50 50 × 50 236 90 1050 0 105 324 
 Dg38 38 × 38 325 87 2500 0 125 494 
 Dg25 25 × 25 460 84 6400 0 145 776