• Grain Size: 0.6–1.18 mm

  • Meticulously graded to serve as an effective primary filtration layer for removing fine suspended solids.

• Specific Gravity: ~2.65 g/cm³

  • Provides stable bed formation and resistance to hydraulic lift during backwash, crucial for maintaining filter bed integrity.

• Effective Size (D10): 0.7 to 0.9 mm

  • Ensures consistent and efficient filtration, allowing for optimal flow rates with minimal head loss across the filter bed.

• Uniformity Coefficient (UC): ≤ 1.3

  • Guarantees excellent particle size consistency, preventing channeling and promoting uniform flow distribution, leading to superior filtration efficiency.

• Composition: High-purity natural silica quartz sand (SiO₂ content typically >96%); rigorously processed to minimize impurities such as clay, iron oxides, and organic matter.

• Primary Filter Medium in Rapid Sand Filters:

  • The most common application, forming the main filtration layer in high-rate municipal and industrial rapid gravity and pressure filters.

• Top Layer in Multi-media Filters:

  • Often used as the uppermost or active filtration layer when combined with coarser media (like larger sand, garnet, or anthracite) below it.

• Water Clarification and Turbidity Removal:

  • Highly effective for reducing turbidity and removing suspended solids from raw water sources, including rivers, lakes, and borewells.

• Pre-treatment for Advanced Purification:

  • Serves as a crucial pre-filter for Reverse Osmosis (RO), Ultrafiltration (UF), and Ion Exchange (IX) systems, protecting sensitive membranes and resins.

• Industrial Process Water Treatment:

  • Essential for various industries (e.g., food & beverage, electronics, pharmaceuticals) requiring clean, filtered water for their operations.

• Swimming Pool and Aquarium Filtration:

  • Provides efficient mechanical filtration to maintain water clarity and hygiene in recreational and aquatic environments.

• Tertiary Wastewater Treatment:

  • Utilized in the final polishing stages of wastewater treatment plants to remove residual suspended solids before discharge or reuse.

✅ Superior Filtration Efficiency – Precisely graded to effectively capture fine suspended solids, turbidity, and colloidal particles.

✅ High Purity & Chemical Inertness – Consists of over 96% silica, ensuring no leaching of contaminants and safety for potable water.

✅ Excellent Hydraulic Characteristics – Promotes uniform flow, minimizes head loss, and facilitates efficient backwashing for optimal filter runs.

✅ Exceptional Durability & Longevity – Naturally hard and resistant to attrition, guaranteeing a long service life with minimal media loss.

✅ Chemically & Biologically Stable – Highly resistant to acids, alkalis, and microbial degradation, ensuring consistent performance in diverse water chemistries.

✅ Pre-Washed & Ready to Use – Minimizes on-site preparation, ensuring virtually no initial turbidity or fine particle wash-out during filter commissioning.

• Typically installed as the main or active filtration layer in rapid sand filters, or as the top layer in multi-media filters.

• Recommended bed depth usually ranges from 600–900 mm (24–36 inches), but should be determined by specific filter design, raw water quality, and desired effluent standards.

• When used in multi-media filters, it must be carefully layered above coarser support media (e.g., 1.18–2 mm sand, garnet, or gravel) to prevent intermixing.

• A thorough backwash and rinse cycle is mandatory after initial installation to properly stratify the bed, remove any residual fines, and prepare the filter for operational service.

• Packaging: Available in robust 50 kg HDPE woven bags for convenient handling and storage, or in large 1-ton jumbo bags for bulk project requirements.

• Form: Supplied as rigorously pre-washed, carefully oven-dried (upon request), and precisely size-graded natural sand, ensuring optimal quality and consistency.

• Supply: Readily available in bulk quantities to cater to the demands of municipal, industrial, commercial, and large-scale water purification projects.

• Conforms to: IS: 8419 (Indian Standard for Filter Media), AWWA B100 (American Water Works Association Standard for Granular Filter Material), and NSF/ANSI Standard 61 (Drinking Water System Components – Health Effects) when applicable, ensuring its suitability for various water treatment applications, including potable water.

• Quality Assurance: Every batch undergoes strict quality control procedures, including detailed size analysis, specific gravity determination, and acid solubility tests, to guarantee consistent performance and adherence to international specifications.