Hydrex Performs Underwater Stern Tube Seal Repair

MarineLink.com
Tuesday, October 15, 2013
Photo: Hydrex

In August, the stern tube seals of a 67-meter, 2223 grt anchor handling vessel were replaced in Port Gentil by a Hydrex team of diver/technicians. The old seals were damaged and a fast repair was therefore necessary. The team carried out the entire operation on-site and underwater with one of the company’s flexible mobdocks. This saved the owner the time and money of an unscheduled trip to drydock.

All Hydrex offices have fast response centers. These are equipped with the latest facilities, equipment and tools to increase speed of service. Special flight containers are used to transport the lightweight flexible mobdocks. This allowed for a very fast mobilization and a timely arrival of the Hydrex team in Port Gentil.

First the diving team set up a monitoring station. Next the actual operation started with a thorough underwater inspection of the stern tube seal assembly. This revealed that a fishing net had become tangled around the assembly.

The team detached the rope guard of the vessel and removed the fishing net from the liner. The divers then set-up the flexible mobdock around the stern tube seal assembly thus creating a dry underwater environment. It allows the divers to perform any necessary work on the assembly in conditions similar to a drydock. This is essential because stern tube seal repairs cannot be carried out in the wet. Next the team disconnected the split ring and brought it to the surface. After cleaning the entire assembly, the divers removed the first stern tube seal. A new seal was then installed and bonded. The other three damaged seals were then replaced following the same procedure.

Pressure tests were then carried out with positive results after which the flexible mobdock could be removed and the rope guard reinstalled. This wrapped up the operation.

For almost twenty years Hydrex has carried out repairs and replacements on stern tube seals on-site and underwater. We constantly invest in the research necessary to keep developing new repair techniques and evolving existing procedures. This has made it possible for Hydrex divers to perform permanent repairs to all parts of the underwater ship propulsion system in drydock-like conditions.

For many years our technical department has been dealing with all kinds of circumstances in locations around the world. This enabled our team in Port Gentil to perform the seal repair under the strictest safety regulations, to the highest quality standards and without any delay.

hydrex.be

Maritime Reporter August 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

That’s Not Coming on Board!

There’s hardly anything that can’t be shipped in a container. However, for ethical reasons, Hapag-Lloyd refuses to transport certain goods.   Anyone who regularly transports goods for third parties,

US Navy Awards $22mln Waterfront Inspection Deal

The U.S. Navy has awarded a five-year, $22 million contract to Appledore Marine Engineering, a specialist focusing exclusively on the inspection and design of marine infrastructure,

Offshore Operators Can Simplify Safety Equipment Logistics

Safety equipment manufacturer VIKING Life-Saving Equipment said its Offshore Safety Agreements are providing relief for offshore operators seeking to ensure compliance

Ship Repair & Conversion

Historic Steamship Towed to Buffalo for Restoration

A 113-year-old “Boblo Boat” SS Columbia is being towed from Toledo, Ohio to Buffalo, N.Y., where the historic vessel will be docked for the next year for restoration.

China’s Shipyards Face Tough Times

As the shipping market continues its prolonged downturn five shipyards have filed for bankruptcy this year, reports SCMP.   China's leading private shipyards

Ferguson to Build Two CalMac Ferries

Scottish minister Nicola Sturgeon have named Ferguson shipyard as the preferred bidder for a £97 million contract for the biggest new ferries on the Clyde since

Ports

Oakland Terminal Operators Propose Off-peak Hours

Marine container terminal operators at the Port of Oakland are developing a program to operate their terminal gates on Saturdays to reduce weekday congestion at the port.

That’s Not Coming on Board!

There’s hardly anything that can’t be shipped in a container. However, for ethical reasons, Hapag-Lloyd refuses to transport certain goods.   Anyone who regularly transports goods for third parties,

Cameroon Awards Kribi Deepwater Contract

Cameroon has awarded a contract for its Kribi port to a consortium led by French logistics group Necotrans, the two parties said. The deepwater port will allow

News

Five Chinese Ships in Bering Sea as Obama Visits Alaska

Five Chinese Navy ships are sailing in international waters in the Bering Sea off Alaska, the Pentagon said on Wednesday, in an apparent first for China's military that came as U.

White House: No Threat from China Navy Ships in Bering Sea

The Pentagon has not detected any threatening activity from the Chinese navy vessels in the Bering Sea, the White House said on Wednesday.   "Based on their analysis

Recent Vessel Sales - August 2015

Vessel sales for August 2015 (as of September 1) as prepared by Shipping Intelligence, Inc., New York.   Date Reported - Vessel Name - DWT - Built - (Age)

Vessels

Recent Vessel Sales - August 2015

Vessel sales for August 2015 (as of September 1) as prepared by Shipping Intelligence, Inc., New York.   Date Reported - Vessel Name - DWT - Built - (Age)

Historic Steamship Towed to Buffalo for Restoration

A 113-year-old “Boblo Boat” SS Columbia is being towed from Toledo, Ohio to Buffalo, N.Y., where the historic vessel will be docked for the next year for restoration.

New Cutter Suction Dredge: Modern and Efficient

Ellicott Dredges, LLC has debuted a new design 20” (500 mm) cutter suction dredge, the Series 2070 Dragon dredge.    Aiming to take advantage of modern, up-to-date

Underwater Engineering

SMOE Wins $1bln Multi-platform Culzean Contract

Singapore's offshore services provider Sembcorp Marine has won an engineering, procurement and construction (EPC) contract worth over USD1 billion for the Culzean

Historic WW I Shipwreck Survey Underway

Partnering U.S. agencies have commenced surveying the historic shipwreck of an American lightship shelled and sunk by a German U-boat during World War I nearly 100 years ago.

HMAS Canberra Initial Operational Capability

The Royal Australian Navy’s Amphibious Ship, HMAS Canberra, has completed a graduated operational test and trials program to achieve a key milestone towards Initial Operating Capability.

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Offshore Oil Port Authority Salvage Ship Repair Ship Simulators Shipbuilding / Vessel Construction Sonar
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.8067 sec (1 req/sec)