Sailors SocietyVan AalstPort of StocktonTBA GroupCleveland Cascades LtdTOC Events
  • Sailors Society
  • Van Aalst
  • Vigan
  • Telestack
  • Port of Stockton
  • Multimodal 2022

Hydrex repairs bulker scrubber overboard pipe

Hydrex repairs bulker scrubber overboard pipe

(Posted on 06/07/20)

Last month Hydrex diver/technicians carried out scrubber overboard pipe repairs in Belgium and the Netherlands. In Flushing the corroded overboard pipe of a 229-meter bulker was replaced. In Antwerp the same was done on a 200-meter roro vessel. In both cases the new pipe was protected with Ecospeed, a chemical resistant coating produced by Subsea Industries.

Exhaust scrubbers are systems that filter out all harmful toxins from exhaust gasses of marine diesel engines. These can severely corrode the pipes of the scrubber which can result in water ingress if not handled quickly enough.

A small team traveled to the location of the bulker to perform an inspection of the damaged pipe on both the waterside and the onboard side of the hull. This confirmed that the scrubber outlet was corroded. Replacing the affected part of the pipe in its entirety was the only option.

A cofferdam had been constructed at the Hydrex workshop based on the drawings sent by the customer. The team installed this cofferdam over the outlet of the pipe. This allowed them to perform work inside the engine room without water ingress.

Next the team cut away the old pipe. The shell plating was then prepared for the installation of the replacement part. The new pipe had also been constructed at the Hydrex warehouse in Antwerp with a diffuser and flange already in place. The pipe was then positioned and secured with a full penetration weld. Next and independent inspector carried out NDT testing of the welding work.

To prevent the new pipe from corroding, the inside was coated with Ecospeed. This product is produced by Hydrex sister company Subsea Industries. www.subind.net. Ecospeed is highly chemically resistant. Taking into account the nature of the process taking place inside a scrubber, this is essential for a lasting protection of the pipe. Ecospeed can also be used to protect a newly installed scrubber system from day one.

The same procedure was followed on the corroded starboard overboard scrubber pipe of the roro vessel in Antwerp. The portside overboard pipe of this vessel had been replaced eight months ago and had also been coated with Ecospeed at that point. An inspection of the portside pipe revealed that the pipe and the Ecospeed coating were still in perfect condition. No further action was needed for this pipe.

Latest News

Newest U.S flagged Lakes bulker operation with Thordon RiverTough bearing

(Posted on 12/08/22)

Mark W. Barker, the first new U.S flagged Great Lakes bulker in almost 40 years, has successfully completed... Read more


Industry first brings Sailors’ Society’s Wellness at Sea to 1,600 aspiring seafarers

(Posted on 12/08/22)

The first in a series of ground-breaking global wellness and mental health conferences designed exclusively... Read more


Healthy bulk market helps Pacific Basin generate record interim results

(Posted on 05/08/22)

Pacific Basin Shipping Limited, one of the world’s leading dry bulk shipping companies, has announced... Read more


Spar Shipping bulker successfully completes biofuel-powered trial voyage

(Posted on 29/07/22)

A 10-day trial onboard a Spar Shipping AS bulk carrier enabled a reduction of at least 75% in carbon... Read more


Inmarsat report offers cyber-risk guidance amid escalating threats

(Posted on 25/07/22)

A new report published by Inmarsat, the world leader in global, mobile satellite communications, highlights... Read more


MHSS responds to new report on seafarer mental health

(Posted on 25/07/22)

Mental Health Support Solutions CEO and founder Charles Watkins welcomes the recently published report... Read more


CSM partners with Kadmos to automate crews’ salary pay-outs

(Posted on 18/07/22)

Columbia Shipmanagement (CSM) has announced a partnership with Berlin-based Fintech Kadmos to automate... Read more


North joins Maritime Anti-Corruption Network

(Posted on 18/07/22)

In the latest demonstration of its commitment to supporting a more sustainable maritime community, North... Read more


ClassNK releases "Guidelines for Ships Using Alternative Fuels (Edition2.0)"

(Posted on 18/07/22)

ClassNK has released the "Guidelines for Ships Using Alternative Fuels (Edtion 2.0)," which sets forth... Read more


Swire Bulk launches its first SE Asia - Europe liner service

(Posted on 01/07/22)

Swire Bulk will operate a new liner service between Southeast Asia and Europe from June 2022, providing... Read more


Port of South LouisianaCimbriaThe Wolfson Centre for Bulk Solids Handling Technology Multimodal 2022Bühler GmbHVigan
  • TOC Events
  • TBA Group
  • Cleveland Cascades Ltd

Subscribe to our newsletter

Keep up to date with the latest global news in bulk cargo handling and shipping