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Ceramic Pall Ring


Ceramic Pall Ring is improved from the ceramic Raschig Ring, Ceramic Pall Ring has add a design of open the holes for the weeks wall, this construction can improve the surface area and voidage, Ceramic Pall Ring makes porosity distributed even and improves the distribution of the fluid, greater capacity and lower pressure drop than ceramic rasching ring.

Ceramic Pall Ring with excellent acid resistance and heat resistance. They can resist to corrosion of various inorganic acids, organic acids and organic solvents except hydrofluoric acid, and can be used in high or low temperature conditions. Consequently their application ranges are very wide. Ceramic Pall Ring can be used in the drying columns, absorbing columns, cooling towers, scrubbing towers in chemical industry, metallurgy industry, coal gas industry, oxygen producing industry, etc.


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Technical Specification of Ceramic Pall Ring
SiO2 + Al2O3 >92% CaO <1.0%
SiO2 >76% MgO <0.5%
Al2O3 >17% K2O+Na2O <3.5%
Fe2O3 <1.0% Other <1%
Physical & Chemical Properties of Ceramic Pall Ring
Water absorption <0.5% Moh's hardness >6.5 scale
Porosity (%) <1 Acid resistance >99.6%
Specific gravity 2.3-2.40 g/cm3 Alkali resistance >85%
Max operation temp 1200℃    
Dimension and Other Physical Properties
Sizes (mm) Thickness (mm) Surface area (m2/m3) Free volume (%) Number per m3 Bulk density (kg/m3)
25 3 210 73 53500 700
38 4 180 75 15000 650
50 5 130 78 6800 600
80 8 110 81 1950 550

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