Aqua-gravel / Coarse silica sand,
Support layer

according to EN 12904, Type 1
QMS-No. GBT13111

General

Aqua-gravel is a 100 % natural silica sand, through an elaborate refining process, together with constant quality control, elevated to a top quality media - free of clay, dust, organic matter or any other contamination, thus meeting all inter­national standards.

 

Applications:

      Support-layer

        under Aqua-sand and/or Aqua-sand and Aqua-cite, in order to:

  • prevent losses of fine media through the nozzle system,

  • evenly distribute the backwash media water and/or air over the filter area.

Chemical analysis

Average
figures

EN 12904
Type 1

SiO2 mass-% > 97 > 96
Fe2O3 mass-% < 1 < 2
Al2O3 mass-% < 1 < 3
       

Physical characteristics

Average
figures

EN 12904
Type 1

Density g/cm3 2.6 2.5 - 2.8
Bulk density kg/m3 1500 1400 - 1700
Acid solubility
24 h in 20% HCl
mass-% < 1 < 2
Shape round, spherical
Colour white, white to yellow
Sizes available Sizes to all international standards upon request.

 

Packaging

  • 25 kg PE-bags, palletised and shrink-wrapped,
  • Big bags,
  • Bulk-carriers.

PDF

Download hier het technische data sheet in PDF:

GBT13111 Aqua-gravel.pdf


Aqua-Techniek B.V., Nijverheidsweg 15a, 3225 LL Hellevoetsluis, The Netherlands
T +31(0)181-404600 - F +31(0)181-404744 - Email: info@aqua-techniek.com