Offshore services

Framo Sonihull

Stop the 30% of lifecycle corrosion caused by biofouling—before it starts.

Protect your offshore installations with Framo Sonihull. It is the world’s leading chemical-free biofouling management solution, proven in decades of experience at sea.

See how it works CONTACT OUR EXPERTS

Offshore services

Framo Sonihull

Stop the 30% of lifecycle corrosion caused by biofouling—before it starts.

Protect your offshore installations with Framo Sonihull. It is the world’s leading chemical-free biofouling management solution, proven in decades of experience at sea.

see how it works CONTACT OUR EXPERTS

Biofouling is more than just added weight.

Left untreated, marine growth accounts for around 30% of lifecycle corrosion.

It impairs vital cooling systems, causes premature equipment failure, and drastically increases fuel consumption on positioned vessels.

Clean wins with ultrasound.

Framo Sonihull prevents structural loading and keeps efficiency high without chemicals or mechanical intervention.

Effective prevention of biofouling – without releasing biocides, microplastics or other harmful substances into the environment
End-to-end protection of offshore structures and critical seawater systems
Reduced downtime and costs through prolonged intervals between mechanical cleanings
No disturbance to crews, offshore structures or electronic equipment
Easy engineering and installation – ATEX and IECEx approved

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Sonihull application areas

Without biocides, Sonihull ultrasonic technology inhibits biofouling on pumps and other solid surfaces exposed to raw seawater.

Seawater Cooling & Flow Systems

Sea chests, box coolers, plate coolers, shell-and-tube coolers, pipework, valves, strainers, and intakes.

Marine Structures & Storage

Hulls, pontoons, legs, columns, monopiles, and tanks.

Machinery & Propulsion Systems

Pumps, freshwater generators, propulsion systems, propellers, thrusters, and waterjets.

Typical results with Framo Sonihull protection

See application areas

UNPROTECTED
Sea chest grating
Biofouling build-up obstructs water inflow

PROTECTED
Sea chest grating
Free flow of water maximises cooling potential

UNPROTECTED
Box coolers
Biofouling build-up inhibits effective heat transfer

PROTECTED
Box coolers
Clean surfaces provide high cooling efficiency

UNPROTECTED
Propellers
Barnacles, algae and hard deposits impair efficiency

PROTECTED
Propellers
Clean surfaces retain their hydrodynamic properties

Shrinking costs and footprint

Biofouling management with Sonihull safeguards offshore assets and operating economy – along with the environment, in more ways than one.

Extended lifetime

Biofouling is a major contributor to corrosion. By keeping submerged surfaces clean, Sonihull preserves their integrity and prolongs their working life. Offshore structures stay in profitable service, avoiding costly repairs and replacements over time.

Reduced labour

Continuous protection with Sonihull reduces maintenance downtime for key equipment like coolers and freshwater generators. In addition, it avoids much larger costs for underwater inspection and manual cleaning of submerged offshore structures.

Maximized efficiency

Biofouling degrades both thermal and hydrodynamic efficiency. Sonihull protects sea chests and critical cooling systems, keeping heat transfer and process performance high. And where propulsion is used, it prevents drag-increasing build-up. Indirectly or directly, these factors reduce energy use.

Reduced emissions

Greater energy efficiency means less fuel burned. That contributes to rapid payback for a Sonihull system, and it lowers emissions as well. On support vessels covered by marine regulations, it can mean an improved Carbon Intensity Indicator (CII) rating.

Ecosystem protection

By using ultrasound, Sonihull avoids potential harm to aquatic ecosystems. As well as decreasing reliance on biocidal coatings, it reduces the need for manual cleaning that can release metals and harmful compounds into the water.

Framo Sonihull systems

We ensure comprehensive biofouling protection through customer-focused design.

Each Sonihull solution is engineered for simplicity and effective performance. You can be sure of robust ultrasound transmission, matched to the application and the surfaces involved.