Bühler GmbHSailors SocietyCimbriaTelestackTBA GroupTOC Africa 2025
  • Cimbria
  • Sailors Society
  • Geneva Dry
  • Van Aalst
  • TOC Americas 2025
  • Vigan

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

MIS launches as new global media platform

(Posted on 30/07/25)

Maritime Information Services (MIS) has officially launched as a global media platform delivering daily... Read more


Russian and Ukrainian seafarers continue struggle with psychiatric fallout of war

(Posted on 30/07/25)

Russian and Ukrainian seafarers continue to experience significant psychological strain following the... Read more


Noatum expands global footprint with inauguration of Shanghai office

(Posted on 30/07/25)

Noatum Maritime, part of AD Ports Group’s Maritime & Shipping Cluster, announced the official... Read more


Smart Ship Hub emission reporting first through Asiatic Lloyd partnership

(Posted on 21/07/25)

Leading vessel optimisation platform Smart Ship Hub has announced its partnership with AL Group &ndash... Read more


KR Representative LEE Jungkun Elected Chair of IACS Safety Panel

(Posted on 21/07/25)

KR (Korean Register) has announced that LEE Jungkun, General Manager of KR’s Convention &... Read more


INTERCARGO-member fleets outperform on safety and compliance

(Posted on 17/07/25)

Dry bulk carriers entered with the International Association of Dry Cargo Shipowners (INTERCARGO) continue... Read more


NEMO strengthens global role with official status from IMO and IAEA

(Posted on 15/07/25)

The Nuclear Energy Maritime Organization (NEMO) is proud to announce that it has officially been granted... Read more


Industry statement on recent Red Sea attacks on shipping

(Posted on 09/07/25)

ICS, BIMCO, European Shipowners | ECSA, INTERCARGO and INTERTANKO have released a joint industry statement... Read more


NovaAlgoma Cement Carriers establishes new JV with DP World

(Posted on 08/07/25)

NovaAlgoma Cement Carriers Limited, a joint venture between Algoma Central Corporation and Nova Marine... Read more


Julia Ju appointed The Swedish Club’s new Chief Executive in Hong Kong

(Posted on 08/07/25)

The Swedish Club has announced the appointment of Julia Ju as the new Chief Executive and Area Manager... Read more


Geneva DryPort of South LouisianaTOC Americas 2025Van AalstPort of StocktonVigan
  • TOC Africa 2025
  • Telestack

Subscribe to our newsletter

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