Flood DefendTM
NF-35 Aluminum Demountable Flood Barrier for Coastal Protection
The Aluminum Demountable Flood Barrier for Coastal Protection is engineered for coastal flood defense, offering a flexible and cost-effective alternative to permanent concrete walls. Built from marine-grade aluminum alloy, the system delivers high strength while remaining lightweight, enabling easier transport and rapid deployment.
The modular design allows barrier height adjustment by stacking panels, making it suitable for varying coastal flood levels and storm surge scenarios.
Key Features
- Marine-Grade Aluminum Alloy Construction: Lightweight yet strong for high durability in coastal environments.
- Modular Stackable Panels: Adjustable flood height from 200-1400mm to meet site-specific demands.
- High Flood and Wave Resistance: Designed to handle water loading and wave forces typical of coastal conditions.
- Pre-Installed Permanent Posts: End posts and anchor plates pre-embedded in concrete foundation ensure structural integrity.
- Rapid Deployment System: Quick installation by a small team upon flood warning.
- Effective Sealing System: EPDM rubber in posts and panels combined with PU/PE ground seals for minimal leakage.
- Low Visual Impact: Once pre-installed, the barrier remains unobtrusive until deployment.
- Unlimited Length Capability: Barriers can join through central posts for extended coastal protection.
Explore NEWFLAG’s Demountable Flood Barrier Solution
The Aluminum Demountable Flood Barrier for Coastal Protection from NEWFLAG is engineered for flexibility, strength, and coastal durability. Designed for locations where flood risk heights are typically below 1.4 meters, this barrier balances high performance with ease of use.
Demountable Flood Barrier Advantages
- Reliable coastal flood protection with strong resistance to water loading and wave impact.
- High strength yet lightweight, made from marine-grade aluminum alloy with full anodized surface.
- Scalable and adaptive, height adjustable from 200mm to 1400mm and unlimited length extension.
- Impressive low seepage, ensuring reliable watertight performance.
- Fast installation and reuse, easy to install/uninstall and suitable for seasonal use.
- Minimal visual impact after flood season, ideal for coastal developments and tourist zones.
Why Aluminum Works Best for Coastal Flood Defense
Aluminum is the preferred material for demountable coastal flood barriers because it combines strength, light weight, and excellent corrosion resistance. Coastal environments are harsh due to saltwater, humidity, and wave impact. Compared with steel, aluminum performs better long-term and requires less maintenance.
Its lightweight design enables faster deployment during emergencies. Since demountable systems are installed only after a flood warning, quick transport and assembly are essential. Aluminum panels and posts can be handled by a small team without heavy machinery, reducing labor costs and improving response time.
Aluminum can also be anodized or coated to further enhance durability. Its high strength-to-weight ratio keeps the system stable while remaining modular and easy to store. For coastal projects that need reliable, reusable, and low-maintenance flood defense, aluminum demountable barriers are the most practical and cost-effective choice.
Temporary Flood Barrier Specifications
MAX. EFFECTIVE FLOOD HEIGHT (EFH): 1000/1200/1400 mm
DESIGN SPAN: 3000mm MAX. SAFE SPAN: 4000-5000mm depends on height
MATERIAL:
Side Post (6063-T6):
Height: Max. 1.55 m/ Section: T10.0*70*85mm/ Linear: 6.75Kg/m
Barrier Panel (6063-T6):
Supply Length: Max. 6 m/ Section: T2.5*35*200mm/ Linear: 3.69Kg/m
Central Post (6063-T5):
Height: Max. 1.55 m/ Section: T20.0*85*140mm/ Linear: 12.73Kg/m
SEALS:
Panels and posts: EPDM (Ethylene Propylene Diene Monomer rubber)
Ground: PE&PU composed
COLOUR: Anoidzed (Silver/Black)/ Powder Coated (White, Black,Grey)/ Heat Transfer (Wood Grain)
WEIGHT:
CIVIL: EFH 1.4m*L 3m, it is 24.15kg/m2
PROJECT: EFH 1.4m*L 100m (each span 3.5m), it is 24.81kg/m2
Installation and Easy Removal Process
Once the pre-installed components are secured, the barrier is nearly invisible when not in use. When a flood warning comes, 3–4 workers can quickly deploy it by bolting the posts and sliding in the panels. After the event, it can be easily dismantled and stored for reuse.
This well-designed metal flood barrier requires no ground frame—only a solid ground surface. PU and PE ground seals compensate for uneven terrain, while EPDM rubber in both the posts and panels ensures water tightness once the top pressing tool is installed.
Maintenance Guide for Flood Barrier Systems
| Maintenance Item | Frequency | Key Actions | Notes |
|---|---|---|---|
| Routine Inspection | After each flood event | Check panels, posts, anchor plates for corrosion or deformation | Clean with fresh water to remove salt and debris |
| Seal and Gasket Check | Quarterly or after heavy use | Inspect PU/PE ground seals and EPDM gaskets | Replace worn or cracked seals immediately |
| Fastener and Connection Check | Quarterly | Verify bolts and connections are secure | Replace rusted or damaged fasteners |
| Storage and Handling | After disassembly | Store in dry, ventilated area | Avoid corrosive materials |
| Spare Parts Support | As needed | Provide replacement seals, fasteners, panels | OEM spare parts available |
What Influences Demountable Flood Barrier Price
- Barrier Height: Higher flood walls require more panels and stronger posts, increasing material and manufacturing costs.
- Barrier Length and Span: Longer openings need more panels, central posts, and connection components, which directly raises the total price.
- Material Grade and Coating: Marine-grade aluminum and corrosion-resistant finishes for coastal protection will increase cost compared to standard materials.
- Foundation and Installation: Concrete foundation, anchor plates, and site preparation are essential for NF-35 systems and contribute significantly to the overall cost.
- Sealing System and Accessories: EPDM gaskets, PU/PE ground seals, pressing tools, and other accessories impact pricing depending on performance requirements.
- Customization and OEM Requirements: Special dimensions, custom connection systems, or project-specific design adjustments may increase the price.
- Quantity and Bulk Orders: Larger orders usually lower the unit price, making wholesale procurement more cost-effective.
- Shipping and Logistics: Transportation, packaging, and destination logistics influence the final price, especially for international coastal projects.
Why Choose NEWFLAG Flood Defense Solutions
We maintain rigorous quality control, ensuring every component — from anodized aluminum profiles to EPDM and PU/PE seals — meets performance standards for coastal use. With durable materials and modular engineering, our solutions reduce long-term maintenance and deliver peace of mind in flood planning.
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