Metal structured packing Characteristics 1. Large surface area; high void ratio and light weight 2. Small gas path obliquity regular, low pressure drop 3. Good radial diffusion, sufficient gas-liquid contact Main Parameter of Metal Sulzer Gauze Packing Type- 250(AX) 500(BX) 700(CY) Surface Area (m2/m3) 250 500 700 Bulk Density (kg/m3) 125 250 350 Void Ratio (m3/m3) 0.98 0.962 0.955 Pressure Drop (Mpa/m)1.5-2?0-4 3.0?0 4.5-6.5?0-4 HETP (mm) 100 200 400-333 Theoretical Plate Number(piece/m) 2.5-3 4-5 8-10 Height of Lift (m) 5 3-4 5