Key Features
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Uniform Particle Size Distribution — Ensures even water flow and stable filtration layers.
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High Mechanical Strength — Resistant to breakdown under backwashing and hydraulic pressure.
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Low Solubility & Inert Composition — Chemically stable in all water conditions.
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Washed, Dried & Screened — Free from dust, clay, and organic matter.
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Compatible Support Layer — Ideal for use beneath silica sand, zeolite, and activated carbon beds.
Applications
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Support media for multimedia and pressure filters
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Base layer in domestic, commercial, and municipal filtration units
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Support bed for RO, UF, and softener systems
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Industrial process water and wastewater treatment plants
Typical Specifications
| Parameter | Typical Value |
|---|---|
| Composition | Natural Quartz Gravel |
| SiO₂ Content | ≥ 97 % |
| Grain Size Range | 4.0 – 8.0 mm (standard) |
| Uniformity Coefficient | < 1.5 |
| Bulk Density | 1.6 – 1.8 g/cm³ |
| Specific Gravity | 2.65 |
| Hardness (Mohs) | 7 |
| Acid Solubility | < 0.5 % |
| Color | Light Gray |
| Moisture Content | < 0.2 % |
Packaging
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25 kg polypropylene sacks
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Available in 5mm
Storage & Handling
Store in a dry area, off the ground, to prevent contamination or moisture absorption. Avoid mixing with finer media.
Material Data Sheet (MDS)
Product Name: GraviTec 5
Chemical Name: Silica Gravel (Quartz Aggregate)
Manufacturer: Aquasolve Water Technology
Brand Line: GraviTec Filtration Media Series
Intended Use: Filter support bed media for water and wastewater treatment
1. Composition / Information on Ingredients
| Component | CAS No. | Percentage (%) |
|---|---|---|
| Silicon Dioxide (SiO₂) | 14808-60-7 | ≥ 97 % |
| Minor Oxides (Fe₂O₃, Al₂O₃, CaO, MgO) | — | ≤ 3 % |
2. Physical & Chemical Properties
| Property | Value |
|---|---|
| Physical State | Solid, granular |
| Color | Gray to off-white |
| Odor | Odorless |
| Specific Gravity | 2.65 |
| Bulk Density | 1.7 g/cm³ |
| Solubility | Insoluble in water |
| Hardness | 7 (Mohs) |
| Melting Point | ~1,700 °C |
| pH | Neutral |
3. Health Hazard Information
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Inhalation: Dust may cause mild respiratory irritation; prolonged exposure should be avoided.
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Skin Contact: Non-irritating under normal handling.
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Eye Contact: Mechanical irritation possible; flush immediately with water.
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Ingestion: Non-toxic but not intended for ingestion.
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Chronic Exposure: Long-term inhalation of fine crystalline silica dust may lead to silicosis if airborne levels are uncontrolled.
4. First Aid Measures
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Inhalation: Move person to fresh air. Seek medical attention if irritation persists.
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Skin Contact: Rinse with soap and water.
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Eye Contact: Flush with clean water for 15 minutes.
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Ingestion: Rinse mouth; drink water; no further treatment required.
5. Fire & Explosion Data
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Flammability: Non-flammable.
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Explosion Hazards: None.
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Suitable Extinguishing Media: Not applicable.
6. Handling & Storage
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Avoid generating dust when handling in bulk.
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Use PPE (dust mask, gloves, goggles) during transfer or loading.
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Store in a dry, covered area away from contaminants.
7. Stability & Reactivity
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Stability: Stable and inert under normal use.
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Incompatibility: Reacts with hydrofluoric acid.
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Hazardous Decomposition Products: None under normal conditions.
8. Regulatory Information
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Compliance: Meets AWWA B100 and NSF/ANSI 61 standards for potable water media.
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Classification: Non-hazardous mineral under GHS classification.
9. Transport Information
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Non-hazardous solid — not regulated for transport.
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UN Number: Not applicable.
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Shipping Name: Filter Gravel (Non-hazardous).
10. Disposal Considerations
Dispose of as inert, non-hazardous waste. Clean, uncontaminated gravel may be reused in landscaping or civil works.
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