High quality ceramic pall ring ( size: 1", 1.5'', 2'', 3'' )

Product Description  Ceramic pall ring is originated through improvement of raschig ring, it open structures effectuate separation of gas and liquid streams and thus facilitate a more effective mass transfer, and decrease the pressure drop. Ceramic pall ring has excellent acid resistance and heat resistance, it 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 the application range is very wide, it can be used in chemical industry, metallurgy industry, coal gas industry, oxygen producing industry, etc. Chemical Composition

Composition	Value	Composition	Value
SiO2	68-72%	MgO	0.6%
Al2O3	18-22%	CaO	0.6%
Fe2O3	<1.0%	K2O	3.5-4.5%
Dissociation Fe	<0.01%	Na2O	0.1-0.3%

  Physical Properties

Index	Unit	Value
Specific gravity	g/cm³	2.3-2.4
Water absorption	%Wt	0.1-0.5
Hardness	Moh's Scale	7-8
Compression strength	N /mm²	300-500
Elasticity coefficient	GPa	60
Specific heat, 20°C-100°C	J/kg.K	840-920
Thermal conductivity, 30°C-100°C	W/m.K	1-1.5
Thermal expansion coefficient	10-6K-1	4.7
Acid resistance (DIN51102 sheet 2)	%	99.5
Heat resistance	°C	≥1000

  Technical Data

Specification (mm)	Diameter×Height×Thickness (mm)	Surface area (m2/m3)	Free volume (%)	Number Per m3 (n/m3)	Bulk Density (kg/m3)	Dry packing factor (M-1)
Φ25	25×25×3	210	73	36000	630	540
Φ38	38×38×4	140	75	12000	590	332
Φ50	50×50×5	100	78	4900	520	210
Φ76	76×76×9	70	80	1500	470	137