Introduction to Flood-Proof Doors & Swing-Hinged Flood Gates
Unlike single-panel or modular barriers that need manual assembly before a storm, swing-hinged flood gates work like standard doors. No daily setup. No manual handling. They integrate into building designs, are made of stainless steel, and resist high winds and water pressure. Perfect for high‑traffic areas, these flood‑proof doors save significant manpower and provide rapid, reliable defense before typhoons or black rainstorms hit.

Applications of Swing-Hinged Flood Gates
Heavy‑duty swing‑hinged flood gates are widely used in large underground car parks, basement malls, and wide entrances (10 meters or wider). Because they are permanently installed, there’s no need for lifting, storage, or temporary assembly during dry season. Closing the door instantly activates full flood protection.
Due to their large dimensions, these flood‑proof doors require custom engineering to match the building’s original architectural design. Permanent installation is more complex, so the initial cost is typically higher than that of demountable barriers and single‑panel flood barriers, both of which require manual installation.
- Responding to Flash Floods: Robust hinged design, secure and reliable. When a storm warning sounds, simply push the gate shut and lock it. Flood defense activates in seconds , no assembly, no road closures, no disruption to busy entrances.
- Access Point Protection: Commonly installed at building main entrances, garage gates, basements, loading docks, and switchrooms. In Hong Kong, these flood-proof doors are extensively used to protect underground car parks and switchrooms.
International Material Specifications: Engineering Durable Flood-Proof Doors
Tachibana flood‑proof doors feature precision‑machined, self‑lubricating hinges, allowing a single person to easily open or close the swing‑hinged flood gates without effort. Other core industrial material specifications include:
- Embedded U-Shaped Metal Channel: Made of 316-grade stainless steel with a solid 5mm thickness, ensuring ultimate compression resistance and anti-seepage performance when integrated with the concrete wall structure.
- Side Mullions: Utilizing premium 316-grade stainless steel to provide a rock-solid, wind-resistant structural frame for wide-span gate systems.
- Floodgate Panel Structure: The square tubing core framework and faceplates are both constructed from 316 stainless steel, offering superior structural resilience against severe wave impacts and storm surges.
- Durable Installation Hardware: Equipped with top international brand anchor bolts, Hilti and 316 stainless steel screws, ensuring long-term exposure to high humidity without rusting or jamming.
- Waterproof Sealing Gaskets: Premium EPDM gaskets provide excellent weatherproofing, high rebound capacity, and anti-aging properties suited for long term physical sealing across most application scenarios.
- Quick-Action Lock: Designed for instant interlocking and locking of the swing‑hinged flood gates during critical emergencies. Each panel is clearly labeled with clear installation instructions and position tags.
For more information, please download: Swing Door Floodgate Catalog