Material: silica sand.
• sand size: 0.4_ 0.8 mm
• Material: silica sand.
• Packaging: Reinforced plastic bag
• Weight: 25 kg
| Feature | Specification | Description & Purpose |
|---|---|---|
| Material | Silica Sand (SiO₂) | Chosen for its high chemical stability, hardness, insolubility in water, and resistance to degradation in acidic environments. It provides a stable, inert surface for filtration. |
| Sand Size | 0.4 - 0.8 mm | This is a critical performance specification. This uniform, medium-grade size is the industry standard for rapid gravity sand filters. It creates pores that are ideal for trapping suspended solids and turbidity from water while allowing for efficient flow rates and backwashing. |
| Effective Size (ES) | ~ 0.55 mm (Calculated) | The Effective Size is the diameter where 10% of the sand is finer by weight. For this grade, it would be approximately 0.55 mm, which is a standard value for multimedia and sand filters. |
| Uniformity Coefficient (UC) | Likely < 1.7 | The UC (a measure of the variety of grain sizes) is expected to be low due to the tight grading (0.4-0.8mm), ensuring consistent pore size and predictable filtration performance. |
| Packaging | Reinforced Plastic Bag | The bag is designed with woven plastic (like polypropylene) threads for high strength. This prevents tearing, moisture ingress, and contamination during handling, storage, and transport. It is suitable for palletizing and forklift handling. |
| Packaging Weight | 25 kg | This is a standard, manageable bag weight in the industry. It allows for relatively easy manual handling (e.g., for operators topping up a filter) while being efficient for bulk shipping and inventory management. |