Flap Valves for Automatic Backflow Prevention in Stormwater Systems

Flap Valves are mechanical backflow prevention devices installed at stormwater outfalls to allow discharge while preventing reverse flow. They operate automatically without power, closing during backflow conditions caused by high tides or surcharging.

Flap valves are commonly installed in coastal and flood-prone areas across the UAE.

Key Features

• Automatic, passive operation
• No external power required
• Simple, robust design
• Effective flood protection
• Low maintenance

Applications

• Stormwater outfalls
• Drainage discharge points
• Coastal developments
• Flood-risk zones

Flap valves provide essential protection against reverse flow and flooding.