About us

SALVAGE:

  • SUNKEN or STRANDED Ships
  • HARBOURS Clearance & Wreck Removal
  • Underwater Rapid Attachment (patches)

In-Water INSPECTION:

  • REASONS for Inspection
  • Survey Inspection EQUIPMENT
  • VESSEL In-Water Surveys
  • Marine INFRASTRUCTURE Surveys
  • MOORING Survey Inspection
  • General Survey Inspections
  • CORROSION Inspection
  • Measuring Metal Thickness
  • R.O.V. Inspection

In-Water CLEANING:

  • WHY Cleaning? HOW to clean?
  • HULL and RUDDER
  • PROPELLER (cleaning/polishing)
  • Marine INFRASTRUCTURE
  • Sacrificial ANODES
  • Water JETTING (high and low pressure)

In-Water REPAIRS, MAINTENANCE:

  • Shipwork
  • Cofferdam
  • Marine INFRASTRUCTURE (overview)
    • PILES Rehabilitation
    • PILES/PIPES Corrosion Prevention
  • Single Point Mooring System (CALM & SALM)
  • Wet WELDING & CUTTING

CIVIL WORKS & ENGINEERING:

  • Dredging & Excavation off small BARGE
  • Dredging, Jetting, Air-Lift, Dewatering by DIVERS
  • Underwater DRILLING & BREAKING
  • POST, PIPE, HOLLOW Section PILING with Portable hydraulic Hammer
  • Maritime CONSTRUCTION
  • Maritime DEMOLITION
  • Marine OUTFALLS & Diffusers
  • PIPELINES installation & maintenance
  • Engineering

SEABED & EARTH ANCHORING:

  • Cyclone Anchor Lines for rental
  • MOORING Line: what's the (best) choice?
  • HELICAL / SCREW Anchors information
  • SCREW Anchors Mooring Systems
  • PIPELING Anchoring
  • Jetty & Walkway FOUNDATIONS screwing
  • Expending Rock Anchors
  • Grouted Rock Anchors
  • Instant Foundation Anchors
  • Earth Retention


Chance Civil Engineering

  • MANTARAY Anchors
  • GROUND Anchor Systems


Williams Form Engineering Corporation

  • TOWAGE, Dive Support Vessel, Barges:
  • Tug Boat
  • Barges & Multipurpose Dive Platform   

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  • ABC Diving LTD International HOME page

Subsidiaries:

  • SEAWORKS (Vanuatu)
  • SEAWORKS (New Caledonia)

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Other useful Websites:

Diving

  • ADAS Training Courses/job/careers
  • New Zealand School of Commercial Diving Training
  • Commercial Diving New Caledonia

Nautical Institutions

  • IMCA International Marine Contractors Association
  • BIMCO Baltic & International Maritime Council
  • IMO International Maritime Organization
  • Institute of Chartered Shipbrokers
  • Institute of Marine Engineering Science and Technology
  • International Federation of Shipmasters’ Associations
  • International Ship Managers’ Association
  • Maritime and Coastguard Agency
  • Nautical Institute
  • Lloyd’s List

Maritime Information

  • Maritime Information
  • BRL Shipping Consultants
  • Marine Data
  • Marine Link
  • www.shippingjobs.com

ABC Diving® Ltd

Port Vila, P.O. Box 3242 VANUATU South Pacific

Complete Diving Services to Vessels & Civil Engineering Industry

We operate in north and south Pacific Islands; more specifically in Samoa, Fiji, New Caledonia, Vanuatu, Salomon, PNG...

Please, contact us for:

The MOORING LINE

What choice?

You can twist the matter like you want: a strong and reliable mooring will cost; but such essential question could turn to be:

"How much do you value your asset connected with?"
and
"How much will cost the damages caused to a third party in case of failure?"

So, you need a good mooring for you peace fo mind and... for your insurer as well.

BASIC KNOWLEDGE

The strength of your mooring line will have to fit a basic environmental risk assessment... and the common sense!
The mooring line inside a shelted harbor will not be the same than an anchorage exposed to winds from all directions and possibly rough sea.

ELASTICITY

A mooring line without elasticity will be quickly damaged or/and may affect its anchorage (moving, pulling off, bending or breaking components).

All the ropes do not have the same elasticity, some do not have almost at all ! Each of them is made for a specific use.

U.V. RESISTANCE

All the ropes do not resist by the same way to the Sun UV. Some have a very poor resistance!

ENVIRONMETALLY FRIENDLY

If the mooring line does not drag around, this means it will be in permanent tenion and will avoid excessive wear, including for its components or accessories (thimble, shackles, swivel, chain). For the same reason it must be environmentally friendly!

Don't worry:
  • ABC Diving Ltd and its subsidiaries will provide you with the right mooring carried out professionally.
  • At the end of the work, you will be provided with a photographic report, not only for your peace of mind and for your insurer, but for the transparency of our work... mostly in unclear waters!

THE "SEAFLEX" LINE SOLUTION

A mooring line made with SEAFLEX mooring system will fit the best all areas subject to wave motion and wind force.

What's SEAFLEX?

SEAFLEX is an elastic mooring system that moors pontoons and buoys in every ocean on the planet, under all weather conditions.

SEAFLEX moorings are highly resistant to corrosion and are unrivalled in their ability to safely and securely adjust with tides and wave motion. It does not damage sensitive ecosystem on the seabed and requires minimal maintenance.

SEAFLEX is one of the most reliable mooring systems on the market whether for complete marinas, breakwaters, buoys, free-floating docks or fishing farms.

SEAFLEX´s unique design allows it to slowly extend and return in a smooth, even movement. In conjunction with initial pre-tension, SEAFLEX mooring provides progressive resistance to wave - motion in both the vertical and lateral plane.
Disturbing wakes common in harbours and marinas, with lots of traffic are largely negated, significantly reducing the risk of damage to moored boats.
Navigation buoys moored with SEAFLEX do not change position to the same degree as chain moorings, a quality which greatly improves marine safety in narrow straits and in harbours.

SEAFLEX medmoored and single point moorings provide flexible and secure mooring in all weather conditions.

  • For any Application

    • Docks / Pontoons
    • Wave Attenuators
    • Mooring Buoys
    • Navigational Buoys
    • Other Floating Devices
  • With any Anchor

    • Embedment Anchors
    • Gravity Anchors
    • Coral Spikes
    • Rock Bolts
  • At any Location

    • Any Depth
    • Any Tide
    • Anywhere

Our subsidiary SEAWORKS (Vanuatu) installed 10 of these mooring lines for navigational buoys at Mystery Island/ANEITYUM/VANUATU in waters from 3 to 15 meters deep (pictures above).
On 13th March 2015, the Tropical cyclone "PAM" force 5 (winds 190 knots/over 300 km/H) hit the island; all the moorings faced a very rough sea (waves 7 meters high) without any exception and without any damage. None of them moved from its position.

So, when a work is professionally carried out, with the right choice of products: the mooring resists even to the worse conditions... maybe above all expectations!

THE ROPE LINE SOLUTION


Above: concrete block + heavy chain + SS wire rope + Poly. rope

A "traditional" mooring line is made of a rope + chain; it will fit well an anchorage inside a sheltered harbor without permanent wave motion, under the condition it respects the basic requirements listed above.

If sized and made properly by adding buoy(s), it will work well in areas with moderate and occasional wave motion.
In this case, the pair "chain + buoy(s)" is working like a spring or damper, to avoid the fittings on your deck to be pulled off. The adjustments in length and size will be determined by the vessel size and the environment.

You may be interested with: Mooring Survey Inspection

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