Modulift, a manufacturer of spreader beams, lifting beams and other below-the-hook equipment, has timed the launch of its subsea modular spreader beams to follow publication of a revised offshore standard from DNV GL AS—titled DNV-OS-H206—that references the use of spreader bars.
DNV, formerly known as Det Norske Veritas AS, a global provider of knowledge for managing risk, has updated the standard that covers loadout, transport and installation of subsea objects.
This was a new document in a series replacing the DNV Rules for Planning and Execution of Marine Operations (1996/2000). The standard replaces Pt.2 Ch.6. Extensive revisions have been made and three new sections have been added: loadout and transport; subsea lifting; and installation of pipelines, risers, cables and umbilicals.
Excerpts from ‘Section 5—Subsea Lifting’ read, ‘Subsea lifting is defined as installing, moving or recovering an object subsea by means of a crane or other lifting appliance.’ And, ‘The lifted object shall be documented as having adequate stability when lowering through the wave zone.’ It also directly references spreader bars.
Conforming to the revised standard, Modulift has launched a new nautical series of spreader beams for subsea environments, designed to safely lift weights of up to 500t. Unlike standard spreader beams that are manufactured using circular hollow sections, the subsea range has an open section design, suited to water submersion by eliminating the risks associated with cavity or pressure issues. They are finished with a three-coat paint system that is based on a two-pack epoxy paint combination suitable for the marine environment.
Sarah Spivey, managing director, Modulift, said: “We have taken the concept behind the unique modular elements of our highly successful, standard and heavy spreader beam ranges, and have produced a versatile and efficient collection for deep water lifting that also conforms to the latest documentation and standards.”
As with regular spreader beams, they are fully and correctly assembled when combined with the recommended end units, drop links and shackles top and bottom, that also allow for the option to use ROV shackles where necessary.
Spivey added: “The new subsea modular spreader beam range is another example of our engineering expertise presenting an economical below-the-hook solution that allows products to be used time and again, in multiple applications. As is consistent with all Modulift products, the modular design facilitates easy transportation.”
The new nautical series is available to order, while the engineering team is prepared to discuss custom solutions and special requirements.
