EVERZIT® BI

Pumice filter media in accordance with EN 12906

EVERZIT® BI is manufactured from a natural silicate-based raw material of volcanic origin. It is primarily used in dual media filters. Users should be aware of the fact that pumices mined from different sources may differ as well in their pore structure and bulk density.

Grain sizes

I)    0.8 - 1.5 mm
II)   1.5 - 2.5 mm
III)  2.5 - 3.5 mm

Other grain-size ranges can be supplied in accordance with your specific requiremants.
Please feel free to contact us!

Quality and purity

EVERZIT® BI complies fully with the following standards and regulations:

  • EN 12906
  • German Drinking Water Ordinance 2001 
  • DIN 19643
  • DVGW work sheet W 213

Chemical and physical characteristics

SiO2approx. 55.0 %
Al2O3approx. 22.0 %
K2O + Na2Oapprox. 12.0 %
Fe2O3approx. 3.0 %
Loss on Ignitionapprox. 4.0 %
Specific density approx. 2.4 g/cm³
Bulk density approx. 280 - 320 kg/m³
Hardness approx. 2 Mohs

Application sectors

  • Drinking water treatment
  • Wastewater treatment
  • Process water treatment
  • Water treatment in swimming pools

Packaging and delivery

EVERZIT® BI  will be delivered ex works

  • 50 litre PE bags
  • 2.0 m³ big bags
  • Bulk transport in silo trucks