Non-Electric Automatic Flood Barrier
How It Works
- Passive Activation
Floodwater enters through the inlet grille at the base of the barrier. - Buoyancy Trigger
Once water reaches a preset level, buoyancy lifts the front of the door leaf. - Self-Closing
The door rises with the water level, forming a watertight seal against the frame. - Automatic Warning
An integrated flashing light alerts pedestrians and vehicles when deployed. - Manual Override
The barrier can be manually opened and locked in clear-weather conditions.
Automatic Hydraulic Flood Barrier
Self-Closing, Non-Electrical Flood Defence
A passive, automatic flood barrier that activates without power or human intervention—ideal for rapid-onset flooding where every second counts.
Product Overview
The Laminar Automatic Hydraulic Flood Barrier is a reliable, zero-energy flood defence system designed to deploy itself the moment floodwater arrives. Suitable for roads, driveways, pedestrian access points, and building entrances, it offers robust protection with no need for electricity, manpower, or prior warning.
Available in both embedded (flush-to-ground) and surface-mounted configurations, it blends security with minimal visual impact.
Key Features & Benefits
Feature | Benefit |
|---|---|
No Electricity Required | Works in power outages; zero running costs |
Automatic & Unattended | Deploys in seconds without human intervention |
High Durability | Corrosion-resistant stainless steel construction; 15+ year lifespan |
Proven Strength | Tested to 250 kN load; equivalent to 40-ton vehicle impact |
Low Maintenance | Simple annual check; no complex mechanical parts |
Two Installation Types | Embedded (flush) or surface-mounted to suit site requirements |
Integrated Warning Light | Flashing LED strip alerts traffic when barrier is active |
Manual Lock Option | Can be secured open for access when flooding isn’t expected |
Technical Specifications
- Operating Principle: Hydraulic buoyancy activation
- Power Source: None required for operation (warning light: optional 220V or DC)
- Load Rating: 250 kN static load tested
- Life Expectancy: 15+ years with proper maintenance
- Materials: Stainless steel frame, reinforced door leaf, rubber side seals
- Activation Speed: Deploys with rising water; no delay
- Optional: Warning light control box, remote status monitoring
Installation Options
- Embedded (Flush Mount)
- Installed into a concrete recess for a seamless, trip-free finish
- Ideal for roads, pavements, and high-traffic pedestrian areas
- Available in multiple heights to match site flood defence requirements
- Surface Mounted
- Mounted directly onto existing hardstanding
- Faster installation with minimal groundwork
- Suitable for temporary or retrofit applications
Applications
- Road & Highway Flood Gates
- Industrial Estate Entrances
- Car Park & Basement Protection
- Pedestrian Walkways & Public Spaces
- Critical Infrastructure Access Points
- River & Canal Side Paths
Faq
Does it require electricity?
No. The barrier operates entirely on hydraulic buoyancy. The warning light can be wired to mains or battery.
What maintenance is needed?
Annual inspection of seals, hinges, and inlet grilles. No lubrication or electrical checks required.
Can it be installed on uneven ground?
A level base is required for proper sealing. Our surface-mounted version can be shimmed for slight unevenness.
How high does the water need to be to activate it?
Typically activates in 5–10 cm of standing water. Trigger height can be adjusted during installation.
Is it suitable for saltwater environments?
Yes, with marine-grade stainless steel and corrosion-resistant components.
What if debris blocks the water inlet?
The stainless steel grille prevents large debris entry. Regular inspection is recommended during flood season.
