Wide range of granularity adjustments according to purpose! Production of sand in sizes tailored to your needs is also possible.
"Rapid filtration sand" is the sand used in rapid filtration ponds employing the rapid filtration method. The particle size is specified by the effective diameter, which ranges from 0.45 to 0.70 mm, and the uniformity coefficient, which should be 1.7 or less, according to the standards set by the Japan Water Works Association. However, in general, rapid filtration sands with effective diameters of 0.5 mm and 0.6 mm are commonly used in many water purification facilities. Our company can also produce sand in sizes tailored to your needs, so please feel free to contact us. 【Features】 ■ Contains few impurities, flat or fragile sand, and sand iron ■ Washing turbidity is below 30 degrees ■ Density is between 2.57 and 2.67 g/cm3 ■ Loss on ignition is 1.3% or less ■ Friction rate is 3.0% or less *For more details, please refer to the PDF document or feel free to contact us.
Inquire About This Product
basic information
【Lineup】 ■15L small bag ■Flecon bag *For more details, please refer to the PDF document or feel free to contact us.
Price range
Delivery Time
Applications/Examples of results
【Usage】 ■For water supply *For more details, please refer to the PDF document or feel free to contact us.
catalog（1）
Download All Catalogs
Company information
Our company is engaged in the production and sale of high-quality filtration materials, as well as the investigation, construction, and maintenance of filtration ponds. Our main products include the constant flow control device "Auto Flow ECO System" and "Rapid Filtration Sand" used in rapid filtration ponds.