The Sagexco device is a reticulated polyurethane anti-deflagration foam designed to protect fuel tanks where there is a risk of explosion.

It is an innovative passive safety solution for tanks, engineered to prevent and significantly reduce the risk of deflagration in the presence of sparks, impacts or high temperatures.

Thanks to its advanced technical structure, Sagexco represents one of the most effective solutions for explosion protection in fuel tanks across industrial, logistics and transport sectors.

What Sagexco Is and How It Works

Sagexco is composed of a three-dimensional reticulated polyurethane foam, characterised by an open-cell structure that divides the internal volume of the tank into thousands of microcells.

Operating principle

Once installed inside the tank, the foam:

  • Acts as a three-dimensional flame arrestor
  • Prevents rapid flame propagation
  • Reduces gas compression (shock wave)
  • Absorbs the thermal energy generated by potential ignition
  • Stabilises the fuel in the event of impact or vibration, helping to reduce sloshing

The reticulated structure disrupts the continuity of flammable vapours, preventing the formation of conditions conducive to explosion.

SAGEXCO reticulated polyurethane foam

Passive Safety: No Moving Parts, No Failure Points

One of the key strengths of Sagexco is its operation as a passive safety system.

Unlike active systems, it does not include:

  • Moving parts
  • Components to be activated or deactivated
  • Explosion sensors
  • Pressurised lines
  • Electronic devices subject to failure

This means complete absence of functional failure modes, when correctly installed.

It requires no power supply, continuous monitoring or extraordinary maintenance. Once installed, it provides constant protection with no operating costs.

Technical Advantages of the Sagexco Device

  • Minimal reduction in fuel volume. The foam is composed of 98% void, reducing usable fuel volume by only 4%.
  • Negligible net weight. The impact on the overall tank weight is minimal.
  • Continuous protection. Operates permanently, without manual or automatic activation.
  • Elimination of operating costs. As a passive system, it removes the typical costs associated with active explosion protection systems.
  • Maximum reliability. No mechanical wear, no sensors to calibrate, and no pressurised lines to inspect.

Applications of Anti-Deflagration Foam

The Sagexco system is ideally suited for:

  • Industrial fuel tanks
  • Tanks for transport vehicles
  • Fuel storage tanks
  • Applications requiring a high standard of anti-deflagration safety

It is particularly recommended in high-risk environments, where explosion prevention is a fundamental requirement for operational safety.

Certain fuels may degrade Sagexco; therefore, replacement is recommended after a period not exceeding ten years.

FAQ

Only minimally. The foam is composed of 98% void and reduces the usable fuel volume by approximately 4%.

No. As it has no moving parts or electronic components, it does not require routine maintenance related to its operation.

If correctly installed, it does not present any functional failure modes.

It can be installed in most tanks subject to explosion risk, subject to technical verification of the specific application requirements.

After the first five years of use, an annual visual inspection is recommended; if any signs of deterioration are observed, replacement should be carried out.

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