High quality natural quartz sand, free from organic contaminants. Produced using the latest primary processing technologies, with multiple washing, dried and sieved to ensure high quality which means small proportion of undersize and oversize particles in the filter bed. Conforms to PN-EN 12904 "Products used for treatment of water intended for human consumption - Silica sand and silica gravel"..
Granulation:
| 0,4 - 0,8 mm |
| 0,5 - 1,0 mm |
| 0,71 - 1,25 mm |
| 1,0 - 2,0 mm |
| 1,4 - 2,2 mm |
| 2,0 - 3,15 mm |
| 3,15 - 5,6 mm |
| 5,6 - 8,0 mm |
| 8,0 - 16,0 mm |
Filter sand and gravel with high grain uniformity and silica content. Extreme resistance to abrasion and mechanical damage guarantees long usage period without the necessity of filter bed replacement or replenishment. All filter aggregates have hygienic certificates of the Polish National Institute of Public Health (PZH). We offer filter sand and gravel with high silica content (SiO2) - reaching approx. 90-95% and low content of calcium and magnesium oxides (CaO + MgO), active iron (Fe+), sulphur compounds and organic contaminants. Quality according to PN-88/B-06715 "Drilled water wells. Filter sands and gravels".
Dried sand and gravel – typical granulation
| 0,4 - 0,8 mm |
| 0,5 - 1,0 mm |
| 0,8 - 1,4 mm |
| 0,8 - 2,0 mm |
| 1,0 - 2,0 mm |
| 2,0 - 4,0 mm |
| 3,0 - 5,0 mm |
| 4,0 - 8,0 mm |
| 5,0 - 10,0 mm |
| 10,0 - 20,0 mm |
Washed sand and gravel – typical granulation
| 0,4-1,0 mm |
| 0,8-1,4 mm |
| 0,8-2,0 mm |
| 1,4-2,0 mm |
| 2,0-4,0 mm |
| 4,0-8,0 mm |
| 8,0-16,0 mm |
| 16,0-32,0 mm |
Other granulations are available on request.
