The Difference a Door Makes Under Extreme Weather
In recent years, short-duration heavy rainfall has frequently occurred during flood seasons in Pudong, Shanghai, with incidents of water backflow being widely reported. For precision manufacturing plants, a single flood intrusion can lead to equipment damage and production shutdowns at best, or supply chain disruption at worst—resulting in losses of millions, and even affecting on-time delivery to international clients.

The Choice of a FORVIA-Affiliated Plant
Shanghai Hella Electronics Co., Ltd., part of FORVIA, a global leading automotive components group, has extremely stringent requirements for production continuity and power system safety at its Pudong plant.
Following an FM (Factory Mutual Insurance Company) risk assessment, the report clearly pointed out:
The plant is located at a relatively low elevation, and under extreme rainfall conditions, key entrances are exposed to the risk of surface water backflow. It is recommended to deploy FM-certified professional flood protection facilities to effectively reduce the potential impact of flood disasters on plant assets and operations.
This is not merely an engineering recommendation, but a mandatory requirement for insurance compliance and asset protection. Ultimately, Hella Electronics selected Shanghai Weiwang Technology Co., Ltd. to deploy five FD-02 FM-certified quick-fit buckled flood doors at the plant.
Why Weiwang FD-02?
The core advantages of the Weiwang FD-02 flood door can be summarized in three words:
Fast — Quick-fit buckle system, deployment in minutes
No tools required. Installation can be completed within minutes under warning conditions, significantly outperforming traditional sandbag solutions in emergency response efficiency.
Reliable — Continuous sealing across three interfaces, zero blind spots
A multi-point buckling system drives EPDM seals to form continuous and uniform compression sealing across the door panel, floor track, and wall track, delivering waterproof performance far exceeding industry averages.
Precise — Full FM certification, worry-free compliance
The product and all components carry FM Approvals 2510 certification, following FM 1-40 Strategy B, meeting the highest compliance requirements of international insurance institutions.
Test Data Speaks
After project completion, the Weiwang technical team conducted rigorous dual tests in accordance with FM 2510 standards, with full on-site witnessing by the client’s representatives:

Leakage in static water tightness test
Not just “basically qualified,” but significantly exceeding FM standards.
This data represents Weiwang’s commitment to every customer.
From Installation to Long-Term Operation & Maintenance — Fully Managed by Weiwang
This project not only completed the high-standard installation of five new flood doors, but also included dedicated maintenance of all existing flood doors across the facility, establishing a comprehensive O&M system: monthly inspections → quarterly maintenance → annual re-verification → emergency drills.
This ensures the flood protection system remains in optimal condition ahead of each flood season. The project was delivered with zero delays, passed acceptance on the first attempt, and achieved excellent customer satisfaction across all categories.
Is Your Factory Ready for the Next Heavy Rain?
If your facility faces the following conditions, feel free to contact us: low-lying site, risk of water backflow at entrances, FM or insurance institutions requiring higher flood compliance levels, existing sandbag solutions with low efficiency or insufficient sealing performance, or the need for FM-certified products and complete installation services.
Weiwang provides integrated services covering on-site risk assessment → solution design → FM-certified products → installation → long-term operation and maintenance.

