Pall Ring Raschig rings made of the significant improvement in the ring wall out of two rows of fenestrae within Shenshe film, this structure improves the liquid distribution, the full use of the inner surface of the ring, compared with Raschig rings ratio, capacity can be increased by 50%, while the pressure to reduce by half. 
 Features: pall ring packing with low pressure drop, capacity, and high efficiency, HYPAK filling than similar size PALL ring with a lower pressure drop and higher mass transfer efficiency, but also in a good liquid distribution within the fill. 
 Application: suitable for a variety of separation, absorption, desorption unit, distillation unit, synthetic amine decarbonization, desulfurization systems, ethylbenzene separation, isooctane, toluene separation. 
 Specification 
 d × h × δ 
 mm surface area 
 α 
 m2/m3 porosity 
 ε 
 % Number of accumulation 
 η 
 n/m3 packing density 
 γρ 
 kg/m3 dry packing factor 
 α/ε3 
 m-1 
 Abalone 
 Seoul 
 Central 16 × 16 × 0.4 239 0.928 185000 0.928 299 
 25 × 25 × 0.6 219 0.934 51900 0.934 269 
 38 × 38 × 0.8 129 0.945 13800 0.945 153 
 50 × 50 × 1 112.3 0.949 6500 0.949 131