Every flood season, underground garages are often the first areas to suffer from urban waterlogging. Most so-called “flood doors” currently on the market rely on repeated assembly for openings over 4 meters—adding center panels, bracing, and even luck to the process.This assembled structure is not only complicated to install, with numerous parts and a high error rate, but also dangerous: if any single connection point fails, the entire defense line becomes ineffective. Moreover, the use of center panels means double the number of door panels, increased structural complexity, storage difficulties, and maintenance challenges.
Project Highlights
FH-01 Rapid-Installation Compression Flood Door: One-piece design, withstanding storms without gaps!
Designed specifically for large-span underground garages and industrial openings, the FH-01 was developed by Shanghai Weiwang Technology and features a proprietary top compression column structure. It enables a “no center post, no bracing” one-piece design for spans up to 6 meters, making the flood protection system simpler, more efficient, and more reliable.
Technical Highlights:
✅ One-piece structure: Fewer connection points, stronger overall continuous sealing, and reduced leakage risk.
✅ No center panel design: Fewer door panels, faster deployment, and lower error rates.
✅ Maximum single unit width/height: Up to 6 meters wide and 1.2 meters high, meeting the one-piece requirements for large openings such as underground garages.
✅ Lightweight modular design, efficient installation and removal: Better suited for emergency response and repeated on-site deployment.
This structural optimization not only improves installation efficiency but, more importantly, strengthens the system’s integrity and protective capabilities in real-world scenarios.
Project Case
In June 2025, we provided two sets of 5-meter-wide FH-01 rapid-installation compression flood doors for the entrance of the underground garage at Takasago Construction in Suzhou.
The project used a full-length, one-piece door structure with a top compression column design, eliminating the need for center panels and ensuring rapid deployment and high-strength sealing within a limited time.
Despite installation interference from metal decorative panels and cantilevered color steel plates above the entrance, our engineering team completed all installation and commissioning in just 3 working days by leveling the wall surface and precisely positioning the rails, giving the client ample preparation time before the flood season.
Our Advantages
We don’t rely on “assembly” to win, but on “precision” to deliver.
✅ Patented compression structure: No bolts or tools required, fast and safe assembly, intuitive operation.
✅ Large span, no center post: Single door up to 6 meters wide, stable structure, clean appearance.
✅ Easy storage: Fewer door panels and components, more efficient transportation and warehousing.
✅ Tested and certified: Passed BSI water pressure spray test, leakage below 40L/h/m.
✅ Suitable for multiple scenarios: Widely used in underground garages, clean rooms, factory openings, critical equipment rooms, and more.
Conclusion
Flood protection is not optional—it is the baseline for urban resilience. Facing a heavy rain, you shouldn’t have to assemble a pile of panels and hope the system works. The FH-01 is a one-piece, tested, and reliable professional defense.
Contact Shanghai Weiwang Technology Co., Ltd. for more project cases, test reports, construction drawings, and product manuals to create a truly “watertight” solution for your underground spaces.