Features

• ■It is activated automatically through the buoyancy of the water and prevents flooding.
• ■When the water recedes, it automatically returns to its original position.
• ■It uses no electricity so there is no need to install wiring and it will still function during blackouts.
• ■It is mainly composed of FRP, making it lightweight and easy to use.
• ■The FRP and stainless steel combination provides high durability.

Usage method

1. Sudden torrential rains cause flooding in the streets.

2. Water flows into the air vents from the ground.

3. Water leaks from the vents into cable tunnels.

4. The first flood board, which is attached to the vent, is activated by buoyancy of the water.

5. The second flood board starts is activated by the buoyancy of the water due to the increased water flow.

6. Leakage into the cable tunnel is shut out. It automatically returns to its original position when the water recedes.