Filter Sand Manufacturer in India – High-Purity Silica Sand for Water Filtration
Starke is India’s leading manufacturer and global supplier of high-purity filter sand for drinking water and industrial applications. With 85+ years of mineral processing expertise, we produce precision-graded silica sand that meets AWWA B100, EN 12904, and BIS requirements for water filtration.
Our filter sand is engineered for low turbidity, fast filtration cycles, high dirt holding capacity, and long bed life, making it the preferred choice for WTPs, RO plants, industrial treatment systems, and municipal drinking water schemes.
What Is Filter Sand?
Filter sand is a precisely graded silica media used in water filtration systems to remove:
Suspended solids
Turbidity
Fine silt & clay
Organic impurities
Iron flocs
Colloidal particles
It is the first major filtration layer in pressure sand filters, multimedia filters, DM plants, and drinking water systems.
High-quality filter sand ensures:
Lower outlet NTU
Longer run cycles
Fewer backwashes
Longer vessel life
Why Starke Filter Sand Performs Better
Starke’s filter sand is produced using advanced washing, drying, screening, and magnetic separation technology to eliminate impurities such as:
Dust
Microfines
Iron contamination
Organic matter
Oversize/undersize grains
Our strict QC ensures uniformity, sphericity, and high silica content, which directly improves filtration efficiency.
Key Performance Advantages:
✔ Low turbidity < 5 NTU
✔ High silica content > 95%
✔ Uniformity Coefficient (UC) < 1.5
✔ Low fines < 1%
✔ Precise grain distribution
✔ High mechanical strength
✔ Long media life
✔ Fast backwash cleaning
This technical superiority is a major ranking and conversion advantage over competitors.
Available Grades of Filter Sand
We manufacture and supply the following filtration grades:
1. 0.40 – 0.80 mm (Most Common for WTP / RO Pretreatment)
E.S. 0.55–0.65 mm
Ideal for drinking water applications
2. 0.60 – 1.20 mm (Industrial & Municipal Filters)
Higher flow rate capability
3. 1.0 – 2.0 mm (Support Layer / High Flow Filters)
4. Custom Mesh Sizes Available
We can customize based on:
ASTM
EN
AWWA
Client technical specification
Technical Specifications of Starke Filter Sand
| Parameter | Value |
|---|---|
| Silica Content (SiO₂) | > 95% |
| Bulk Density | 1.45 – 1.60 g/cm³ |
| Specific Gravity | 2.55 – 2.65 |
| Hardness | 7 Mohs |
| pH | Neutral |
| Moisture | < 1% |
| Acid Solubility | < 2% |
| Uniformity Coefficient (UC) | < 1.5 |
| Angularity | Sub-angular, high surface area |
| Turbidity (after wash) | < 5 NTU |
Certified Granulometric Analysis (Sieve Analysis)
(Example for 0.40–0.80 mm filter sand)
| ASTM Mesh | Opening (mm) | % Retained |
|---|---|---|
| 20 | 0.85 mm | 0–2% |
| 25 | 0.71 mm | 60–70% |
| 30 | 0.60 mm | 20–30% |
| 40 | 0.425 mm | 5–10% |
| 50 | 0.30 mm | < 1% |
| PAN | — | < 1% |
D10 / D60 / UC
D10 ≈ 0.42 mm
D60 ≈ 0.63 mm
UC ≈ 1.50 (Excellent for drinking water use)
Applications of Starke Filter Sand
Drinking Water Treatment Plants (WTPs)
Removes turbidity, suspended solids, iron flocs.
RO & UF Pretreatment
Reduces SDI, protects membranes.
DM & Softener Plants
Ensures low pressure drop & high clarity.
ETP & STP Filtration Units
Reduces TSS, sludge, organic matter.
Swimming Pools
Clear water, reduced chlorine usage.
Industrial Filtration
Beverage, textile, food processing, pharma, chemicals.
Municipal Water Supply Schemes
Large-scale filtration with long bed life.
Recommended Bed Depth & Layer Configuration
For a standard 13 × 54 inch FRP vessel:
Layer 1 – Gravel (2–4 mm)
Depth: 4 inches
Qty: 45–55 kg
Layer 2 – Filter Sand 0.6–1.2 mm
Depth: 10 inches
Qty: 90–100 kg
Layer 3 – Fine Filter Sand 0.4–0.8 mm
Depth: 10–12 inches
Qty: 90–110 kg
Total media: 230–260 kg
Packaging Options
We supply in:
25 kg laminated bags
40 kg HDPE bags
1,000 kg – 1,200 kg jumbo bags
Palletized export packing
Each bag includes:
Batch number
Sieve analysis
QC pass stamp
Why Starke Filter Sand Is Preferred Globally
✔ 85+ years of mineral processing knowledge
✔ EN 12904 & AWWA B100 compliant production
✔ NABL-tested quality parameters
✔ Global supply to Middle East, Africa, Europe, ASEAN
✔ Transparent QC – D10, D60, UC, SG, BD, turbidity
✔ Faster lead times
✔ Client-specific customization
✔ SGS / BV / Intertek inspection available
FAQ
Q1: What is the standard size of filter sand for drinking water plants?
0.40–0.80 mm as per EN 12904 & AWWA B100.
Q2: What UC value is recommended?
UC < 1.5 ensures uniform filtration and long run cycles.
Q3: How often should filter sand be replaced?
Every 3–5 years depending on turbidity and run cycles.
Q4: What is the bulk density of filter sand?
Approximately 1.5–1.6 g/cm³.
Q5: How much filter sand is required per m³?
On average, 1.5 tons per m³.
Request a Free Sample, Sieve Analysis Report & Best Export Pricing
👉 Email: info@starkefiltermedia.com
👉 Website: www.starkefiltermedia.com
👉 WhatsApp: +919667082698
Download Section
📄 Filter Sand Technical Datasheet (PDF)
📊 Sieve Analysis + D10/D60 Curve (PDF)
🧪 QC Report
📦 Packing & Loading Chart for Export (PDF)