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Filter garnet is used in the highest specification three layer multimedia filters. The decreasing grain size from the top layer of anthracite throught the sand layer to the bottom layer of garnet produces the ideal conditions for high filtration rates and long filter runs.
Standards
UK and European EN12910
Physical Characteristics
Shape Angular
Specific Gravity 4.0 - 4.2
Bulk Density 1.95 - 2.20 tonnes/m3
Hardness 7.5 - 8.0 Moh
Acid Solubility Insoluable
Chemical Analysis
SiO2 38%
Al2O3 26%
FeO 30%
Standard Grades (sizes in mm)
0.30 - 0.60 Filter Garnet
1.40 - 2.36 Support Garnet