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Tank Services

Visual inspection and cleaning of tanks in operation


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The use of Specialty Remotely Operated Vehicles (ROV)’s allows visual inspection and cleaning with the tanks still in service, without affecting the quality of the water or the product being operated in.

For fire-fighting systems, the technique meets the requirements of NFPA 25 items 9.2.6.1.1 and 9.2.6.1.2.

The visual inspection allows, through high resolution images, to check the general internal conditions, welding regions, internal devices, columns, bottom and roof. It is highly recommended as a prerequisite of the cleaning process since it is possible to measure the volume of debris present in the bottom of the tank.

The cleaning process is designed to return the system back to its original capacities, avoiding clogging of sprinklers, proliferation of biodiversity and changing the pH of water, which can accelerate the corrosion process. It is possible to do this while the system remains in full service with no interruptions to fire protection of the facility.


Techniques applied in various water storage systems, such as:

• Fire fighting

• Cooling tower

• Process

• Treated

• Gross

• Spheres

• External reservoirs








Sludge Mapping


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The mapping probe allows the evaluation of the topography and measurement of the volume of the sediments present in the tanks.

This technique is essential for the strategic maintenance planning, since it allows the prioritization of the tanks requiring service. The tanks can then be scheduled more effectively for cleaning action according to the larger volume of sediments, facilitating the prediction of resources, time and choice of cleaning technique to be applied.


Advantages of the Technique

• Tank remains in operation

• Quantify sediment volume with 95% accuracy

• 2D and 3D view of sludge topography

• Verification of the cleaning process required

• ATEX Certified Tool