Demountable Systems

Serious solutions to serious problems - protecting groups of properties and stretches of land and highway, demountable systems are used where a permanent concrete wall would be inappropriate.

• AquaBarrier
• Flood Control
• Waterwall
• Pallet Barrier
• NOAQ

These industrial-grade portable cofferdams are water-inflated temporary dams that provide an economical, effective and safe alternative to conventional dam methods like sandbags, earthen berms and mechanical barriers.

Aqua-Barrier cofferdams are manufactured with the highest quality materials to assure consistent and reliable performance. When you need temporary portable dams for construction worksite dewatering, Aqua-Barrier provides a functional, reliable and cost-effective solution.

Flood Control were the first company to introduce demountable flood barriers to the UK and since our first installation in 2001, the system has been used in numerous Government and private flood defence schemes…..

Designed for APPLICATION

• Can be retrospectively installed on suitable existing structures
• Standard System heights 300mm to 2400mm (300mm increments)
• Heavy Duty System heights 200mm to 4000mm (200mm increments)
• Individual sections available to span any size up to 6500mm
• Suitable for use on slopes up to 20° and stepped for steeper gradients
• Can follow road section contour including crown plus cut through pavements
• Non-slip covers for pavement cut through
• Vandal resistant covers & security clamps to lock systems in place
• Stainless steel options for salt water environments
• Can be left semi-permanently installed

Designed for CONVENIENCE

• Front loading option for taller systems
• Steel supports to reduce need for additional separate braces
• Ergonomically positioned carrying handles on each beam
• Fewer components than aluminium supports for easier faster erection
• Modular design requires no specific skills or training to erect
• Secure storage housings available for beams & components

Designed for DURABILITY

• Impact absorbing seals reduce load transfer to supports & sub-structure
• Construction grade steel & aluminium components
• Steel fabrications hot-dip galvanised
• Patented seal design stops silt clogging
• All seals made with EPDM for weather and UV resistance
• Optional Viton seals available for oil bunds & fuel stores
• Seals fixed in preformed channels and easily replaceable
• Twinned seals for extreme flood/impact conditions
• Suitable for constant daily use

Designed to STANDARDS

• Manufactured & tested to exceed DIN19569-4
• Steel sections manufactured to EN10027
• Fabrications hot-dip galvanised to ISO 1461:1999
• Heat treated aluminium extrusions to BS1474
• Stainless steel sections manufactured to EN10088
• Seals all Ethylene Propylene Diene Monomer (EPDM)
• All fixings Load Rated Hilti™ or Fischer™

Our demountable barriers are engineered to provide similar levels of protection to permanent flood defences but with the distinct advantage of being fully removable when not required.

Demountable flood barriers can be supplied for virtually any configuration including arcs, closed rectangles or circles and straight runs of any length. The systems can be used on slopes up to 20° & can be stepped for steeper gradients. Each system is load calculated based on application and the prevailing flood conditions and can be configured for flood depths up to 4mtrs.

Ideal for protecting highways, long store fronts, wide vehicle entrances & for creating wide area flood defences, these systems can also be used to increase the height of concrete flood walls, quaysides & dams.

To facilitate installation in new building projects, we supply pre-formed ground plates with integral anchors for the demountable supports. These incorporate concrete ties for load stability and tensile bars for welding to the foundation steel &, once installed, they present a totally flat ground surface and have an optional non-slip finish for added safety in pedestrian areas.

The systems can be retrospectively fitted to suitable existing foundations in which case load certified, chemically fixed, sleeved anchors are used to attach the demountable supports.

Purpose designed seals that resist silt clogging and will reform even after prolonged compression, together with vandal resistant covers and lockable clamps, make these systems ideal for locations where semi-permanent installation is a requirement.

The modular design facilitates storage & transportation and the economically positioned carrying handles enable all but the higher systems to be erected without the need for mechanical lifting equipment.

Our Removable Dam system has been engineered to provide similar levels of protection to permanent flood defence schemes, but with the distinct advantage of being removable when not required - thus preserving the integrity of the landscape and architecture. The system can be used between existing structures but has been primarily designed to be completely self-supporting over almost any distance and may be specified for virtually any height of flood water.

Watch the Waterwall promotional video here.

Download the product brochure here.

A simple technique is now available for protection against flood water up to 1.80 meter deep using standard pallets, a metal support and a waterproof geomembrane. Other applications of the patented technique include temporary storage of water, fertiliser, sludge and bulk goods. It is also possible to dry out areas covered with shallow water.

Aqua Barrier is assembled by inclining each pallet against its support so that they form a line in the desired direction. The barrier can follow ground contours vertically and horizontally. For 90 degree turns, a triangular module is available which is assembled at the outer or inner corner. One man can easily assemble 200-300 metres in a day.

A NOAQ Tube Wall weighs less than half a percent of a correspondent sandbag barrier, and is easily handled by 2 - 4 people. A Tube Wall works as good on lawns and meadows as on gravel roads and asphalt, and does not require any preparations or abutments. Instead it utilizes the weight of the flood water for anchoring.

A NOAQ Tube Wall consists of airfilled tubes of reinforced plastic, interconnected by ordinary zips to form a chain. Each tube has a ”skirt” attached alongside the tube, on the ”flood side”. When water start rising the skirt is pressed firmly towards the ground, hereby anchoring the tube. We call it ”The Bookend Principle”, as it works in the same way as an ordinary bookend. The bookend is supporting the books, but is in its turn kept in place because of the heavy books standing on it.

The Tube Wall was developed in Sweden with the support of the Swedish Rescue Services Agency and has been used succesfully during flood events. It has also been awarded the SKAPA prize, yearly distributed to three Swedish top inventions. In December 2002 it also won first prize in BBC´s live broadcasted ”Best Inventions” show.