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 Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter July 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

GAC Russia Expands Eastwards

GAC Russia said it is expanding eastwards with the opening of new branches at Nakhodka and Yuzhno-Sakhalinsk to meet demand for shipping services as opportunities open up in Far East.

Young Taken on PESA Advisory Board

Hoover Container Solutions’ chairman and CEO, Donald Young, has been nominated and elected to the Petroleum Equipment & Services Association (PESA) Advisory Board for a three-year term.

US Navy Tests Latest Aegis Weapon System

The U.S. Navy conducted a series of cooperative air defense test exercises with the Spanish navy that culminated in live missile firing events using the latest Aegis Weapon System baseline July 20-21.

Ship Repair & Conversion

Quick Propeller Repair Prevents Drydocking

Recently a team of Hydrex diver/technicians performed a propeller blade cropping on a 190-meter container bulker berthed in Hamburg. Two parts of the tip of one

Shipbuilding: Good Practice in Welding Aluminum

Aluminum alloys have been used for many years in the shipbuilding industry. There are two characteristics that make them particular useful: their light weight and

NASSCO Bags USS Oak Hill Modification Award

General Dynamics NASSCO-Norfolk was awarded a $42 million cost-plus-award-fee modification to a previously awarded contract for the repair and alteration for the USS Oak Hill (LSD-51).

Ports

Funding Approved for Georgia’s New Inland Terminal

At its July board meeting, the Georgia Ports Authority (GPA) approved a spending package of $19.7 million to construct the Appalachian Regional Port in Chatsworth, Murray County, Ga.

ASEAN Breaks South China Sea Deadlock

Manila drops request to refer to court ruling in statement. Southeast Asian nations overcame days of deadlock on Monday when the Philippines dropped a request

Los Angeles Pushes for Valero Terminal Improvements

The Port of Los Angeles has released an Initial Study/Notice of Preparation (IS/NOP) — the first step in the Environmental Impact Report (EIR) process — for a Marine

News

GAC Russia Expands Eastwards

GAC Russia said it is expanding eastwards with the opening of new branches at Nakhodka and Yuzhno-Sakhalinsk to meet demand for shipping services as opportunities open up in Far East.

Funding Approved for Georgia’s New Inland Terminal

At its July board meeting, the Georgia Ports Authority (GPA) approved a spending package of $19.7 million to construct the Appalachian Regional Port in Chatsworth, Murray County, Ga.

Quick Propeller Repair Prevents Drydocking

Recently a team of Hydrex diver/technicians performed a propeller blade cropping on a 190-meter container bulker berthed in Hamburg. Two parts of the tip of one

Vessels

Navig8 Acquires Chemical Tanker from STX

Navig8 Chemical Tankers Inc (the “Company”) (N-OTC: CHEMS), an international shipping company focused on the transportation of chemicals, today announced that it

Ithaca’s FPF-1 platform to be moved to Stella field

Ithaca Energy Inc. reports that the "FPF-1" floating production facility has completed the required inclination test as planned and departed the Remontowa shipyard in Gdansk, Poland.

Live Fish Carrier Launched at Gondan

At high tide, the vessel “MARTIN SÆLE”, the first Live Fish Carrier built by Gondan Shipyard in Figueras, was successfully launched today. Representatives of the owner of the vessel,

Underwater Engineering

Pathogenic bacteria hitchhiking to North and Baltic Seas?

For the first time, AWI scientists have found evidence of living, potentially pathogenic vibrions on microplastic particles. With increasing water temperatures

Ithaca’s FPF-1 platform to be moved to Stella field

Ithaca Energy Inc. reports that the "FPF-1" floating production facility has completed the required inclination test as planned and departed the Remontowa shipyard in Gdansk, Poland.

Great Lakes Dredging Awards Announced

Great Lakes Dredge & Dock Corporation announced that it was recently awarded four contracts with an approximate value of $93 million. Great Lakes received two

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Maritime Standards Naval Architecture Offshore Oil Pod Propulsion Salvage 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: 0.1226 sec (8 req/sec)