Filter-Ag Plus® filter media 28.3 L

Technical data

• Color – up to light gray to white
• Bulk density – 0,8 kg/dm³
• Real density – 2,2 kg/dm³
• Effective bead size – 0,55 mm
• Uniformity coefficient – 1,8
• Particle size – 0,6–1,4 mm

The operating parameters

• Max. feed eater temperature +60 °С
• Media layer high – 600–900 mm
• Free space in the filter – at least 50% of media
• Linear filtration rate – 30-48 m/h
• Linear flushing rate – 36-48 m/h
• Expansion layer backwash – 30-40% of media

How it works

Filter – Ag Plus is a filter media based on non-aqueous silica dioxide. It is designed to reduce contents of suspended particles having a size of 20-40 microns (sand, silt, etc.) in water.

The structure of the granules is angular, which contributes to a more active retention of particles, including iron in low concentrations.

Through a scanning electron microscope its granules look like polyhedrons with textured surface and microscopic pores with size larger than 3 microns. These features make their surface over 100 times bigger than that of quartz sand.

Angularity of the granules and tapering pores contribute to retention of dirt, silt and organic matter suspended in the water by means of flocculation, steric effect and adhesion. The textured surface and porosity provide larger surface to effectively retain the suspended impurities.

In the filtering process water enters the filter vessel, passes through a layer of media, which detains mechanical impurities (sand, rust, silt, etc.).

When contaminants “clog” the free space of the material, the pressure drop in the filter increases and the productivity drops. In this case, the Filter-Ag is flushed and back flushed with a reverse flow of water. After it, the filter is ready to purify the water again.