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Ship Pipe Lining

Epoxy pipe lining of ship cooling water pipes

Maritime vessels experience the same internal pipe corrosion as physical structures on land. Ships have sewer plumbing systems, cooling plumbing systems, potable water lines and fire suppression systems. Our patented techbology has been used by the US Navy for their ships in addition to privately owned yacht owners.

Ship Sewer Pipe Lining By CIPP

Relined Cast Iron Ship Sewer Pipe

Sewer pipes in ships are usually rehabilitated using Cured In Place Pipe (CIPP) lining. First the ship sewer pipes are cleaned thoroughly using a high pressure water jetter, or if the pipes are too badly corroded, then they are cleaned using mechanical brushing techniques. Next a pipe video inspection is made to determine the exact length of pipe that is to be re-lined, and an exact length of tubular pipe lining “sock” (liner) is cut to the right size.

The pipe liner is then saturated by an epoxy resin, which either cures ambiently within hours, or is cured using hot water or steam. The new pipe within the old pipe which is typically 3mm-6mm thick only reduces internal diameter by 5%. This pipe lining material is designed to be a stand alone pipe in the event that there are missing sections of ship sewer pipe.

Ship Potable Water, Fire Suppression and Cooling System Epoxy Pipe Lining

In general, these three water systems are all rehabilitated by applying an epoxy coating. First the pipes are cleaned using high air pressure, high air flow to blow sand or silica particles through the corroded or scaled pipes. This “sand blasting” leaves a clean pipe which is ready to be epoxy coated.

Next a special patented food grade epoxy is blown through the pipes and cured using heat. Then the pipes are pressure tested and put back into service.

Ship Epoxy Pipe Lining Stages – Visually

Ship Cooling Water Intakes and Outlets Isolated

High Air Flow At High Pressure Blasts Sand Particles Through Pipes To Remove Corrosion

Next Liquid Epoxy Is Blown Through The Pipes Until Uniform Layer is Achieved, Then Heat Cured

Heat Curing Epoxy Pipe Lining

Epoxy Lined Pipes Pressure Tested For Leaks

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