How to drain large volumes of water potentially contaminated with traces of dielectric oils by gravity, without electricity, and safely? This is the innovative technological challenge that SPI tackled in the 1990s by developing a unique technology: filtration cartridges capable of solidifying hydrocarbons. Thanks to their oleophilic and hydrophobic components, SPI filters perform three essential functions:

Rainwater evacuation: ensuring continuous and safe water flow.
Hydrocarbon filtration: capturing traces of hydrocarbons emulsified or diluted in water.
Solidification in case of saturation: locking pollutants inside the filter by solidifying internal components, preventing any accidental leakage outside the containment area.

As a global leader, SPI has developed, over the past three decades, a catalog of standard products and custom solutions, enabling the continuous drainage of rainwater in various applications: retention basins and pits, long-term storage surfaces, underground tanks, remote pits, etc.

The SPI filter range is the most comprehensive on the market, offering solutions tailored to all needs:

PETRO PIT and PETRO PIPE: simple cartridges for small and medium retentions.
PETRO BARRIER: filtration for large volumes pumped or underground tanks.
STORM BARRIER: filtration at the outlet of a remote pit.

These filters are compatible with all types of hydrocarbons: dielectric oils, mineral oils, natural or synthetic esters. With SPI, you benefit from proven, reliable technology for efficient and safe management of contaminated rainwater.