Fire extinguishing waters retention | Water-Gate©
Emergency containment of polluted liquids

Create a containment dam in record time | Deviate to a neutral zone: chemical pollution, contaminated liquids. A light and flexible solution that fits all types of sites with no anchorage, whatever the surface (concrete, tarmac, earth, rubble, etc.) and relief (slopes, edges, obstacles, etc.). The Water-Gate© retention dam can be installed when the spill is already underway!

An innovative Water-Gate© product
A flexible solution for regulated sites

They count on us

Services offered by MegaSecur.Europe: Fire Risk

4 steps for a FIREWATER retention device


Calculation of the volume to be retained

D9A standard fire water retention


Evaluation of retention possibilities (building, pipelines, topography)

fire water retention audit


Optimised device: regulatory constraints, storage, implementation

sizing of fire water retention


Onsite training of operational teams with video reporting

training in the retention of fire water

Emergency containment: case study

Water-Gate© flexible dams make it possible to contain considerable volumes of polluted liquids in record time.

For the retention of fire water, we favor remote retention by gravity flow. This facilitates emergency response, avoids flooding all buildings and reduces exposure to risk during installation. Please note that the devices are not 100% waterproof, you must plan to collect leaking water.

#1 | Fire extinguishing waters
Sloping Ground

#2 | Fire extinguishing waters
Flat land

#3 | Fire extinguishing waters
Constrained spaces

#4 | Industrial Waters
Emergency Containment

#5 | Raising a retention

#6 | Blockage of a ditch / weir /

#7 | Deviation towards a
neutral zone

Water-Gate© I Packaging
flood protection in rolls
Single-unit packaging
  • A “100% flexible” solution for unbeatable storage size.
  • Ideal for short sections and low dams.
  • Simply unroll and lay down!
cased fire water retention on casters
Wooden rapid deployment boxes
  • These boxes can be placed on wheels and transported by trailer or forklift truck.
  • Simply pull out the first dam and lay it on the ground, then slide the box along the entire length of the dam.
flood protection container
Long-term storage
  • Galvanised steel crates with padlocks.
  • Custom-made.
  • The dams are pre-assembled and folded for rapid deployment.
  • Also available in 6 ft x 20 ft containers.

WL: a complete range of containment and diversion dams

barrier retention fire water schema de principe tarpaulin
*   Ultra-rugged and abrasion-resistant PVC-coated polyester fabric. Can be installed on all types of surfaces.
** Galvanised steel plates slotted into polyester mesh holders sewn onto the dam.
Explanation of the WL range of flood control dams



Improve the sealing of the dam. Various product solutions depending on chemical risk.

Semi-permanent low-rise containment. Helps block or divert accidental chemical spills.

Flexible sticky polyurethane plates for emergency sealing of small openings (drainage grid, buffer, door bottom)

There is no effective surface protection without flood risk control by underground networks. MegaSecur.Europe studies the networks of the site to be protected and provides a solution adapted to each situation.

No mobile flood protection system is completely watertight. We provide pumping solutions to collect leaking water and discharge it beyond the dam: self-priming motor pumps or puddle pumps coupled to generators.