Model: Ceramic Pall  Ring Packing
Shape: Ring
Color: Light Grey
Chemical composition
SiO2 Al2O3 Fe2O3 CaO K2O+Na2O
>70% 17-23% <1% <1-2% <2-4%
Technical data
Diameter (mm) D*H*T(mm) Surface area
(m2/m3)
Free volume (%) Number per m3 Bulk density (Kg/m3) Dry Packing Factor (m-1)
38 38*38*4 150 75 13400 570 356
50 50*50*5 120 78 6800 550 252
80 80*80*8 75 80 1950 520 146
Physical properties
Index Value
Specific gravity(g/cm3) 2.25-2.35
Water absorption (%) <0.5
Acid-resisting strength, %Wt. Loss (ASTMc279) <4
Firing temperature(Degree C) 1280-1320
Softening point( Degree C) >1400
Density(kg/m3) 2350