Product Description
Clack Anthracite: High-Performance Filter Media for Superior Water Treatment
Clack Anthracite is a premium filter media, sourced from the finest Pennsylvania coal and specifically selected for water treatment applications. During production, it undergoes rigorous sizing inspections and laboratory quality control analysis to ensure it meets the highest standards for effective size, uniformity coefficient, specific gravity, acid solubility, and hardness. With its unique angular shape and density, Clack Anthracite provides longer filter runs, lower head loss, and enhanced performance in multi-media filtration systems.
Key Features: Superior Filtration and Efficiency
Premium Quality Anthracite: Mined from top-grade Pennsylvania coal and subjected to strict quality controls.
Longer Filter Runs: The angular shape allows sediment to penetrate deeper into the bed, extending filter life compared to equivalent filter sands.
Reduced Backwash Rates: Requires less frequent backwashing, leading to operational efficiency.
Multi-Media Compatibility: Due to its unique density (50 lbs/ft³), Clack Anthracite is ideal for use in multi-media filters, staying above heavier media like Filter Sand or Manganese Greensand.
Certified to NSF/ANSI Standard 60: Ensures safety and quality for drinking water applications.
Physical Properties
Color: Black
Bulk Density: 50 lbs./cu. ft.
Hardness: 3.0-3.8 (Mohs scale)
Effective Size:
#1 Anthracite: 0.6-0.8 mm
Uniformity Coefficient:
#1 Anthracite:
Mesh Size:
#1 Anthracite: 14x30
Acid Solubility: ≤1%
Caustic Solubility:
Apparent Specific Gravity: 1.6 gm/cc
Meets AWWA Standard 8100-01
Operational Conditions
Bed Depth: 24-36 inches for single media; 10-18 inches in multi-media filters.
Freeboard: Minimum 50% of bed depth.
Service Flow Rate: 5 gpm/sq. ft. or higher, depending on local conditions.
Backwash Flow Rate:
#1 Anthracite: 12-18 gpm/sq. ft.
Backwash Bed Expansion: 20-40% of bed depth.
To determine if your media filter backwash rate is adequate consider installing our Raven Filter Media Manager device. Incorrect filter backwash rates can cause filter plugging (too low) or media loss (too high).
Benefits of Clack Anthracite
Higher Service Flows and Longer Filter Runs: Outperforms equivalent sand filters, providing more efficient and longer-lasting filtration.
Consistent and Reliable Performance: Careful attention to gradation, hardness, and purity ensures superior filtration performance.
Versatile Use in Multi-Media Filters: Its unique density allows Clack Anthracite to be effectively combined with other filtration media for enhanced water treatment.
Ideal Applications
Municipal Water Treatment: Ensures high-quality, consistent filtration for large-scale water treatment systems.
Industrial Water Treatment: Provides reliable filtration in demanding industrial processes.
Residential and Commercial Systems: Ideal for use in multi-media filters to enhance water quality and extend filter life.
Invest in Superior Filtration
Clack Anthracite Filter Media is a reliable and efficient solution for water treatment, offering extended filter runs, reduced backwash rates, and superior compatibility with multi-media systems. Whether for municipal, industrial, or residential use, Clack Anthracite delivers high-performance filtration that meets stringent quality standards. Invest in Clack Anthracite today to achieve optimal water treatment results.
