Located in the Vincent Field off Western Australia is Maersk’s Ngujima-Yin, a floating production storage and offloading (FPSO) vessel. The seven-module FPSO vessel’s existing carbon steel seawater deluge system had corroded over the two-years since its installation. The system required constant maintenance, cleaning and testing, and a replacement was required to reduce the long-term cost of ensuring essential fire protection.
Performance at any and every level Appointed by Maersk, Trelleborg was awarded a contract to supply its high performance Elastopipe™ corrosion-free fire safety deluge system to replace the existing carbon steel pipework on seven of the vessel’s modules.
The challenge with the installation was to replace the existing fire protection throughout the FPSO modules without affecting the safety of the vessel as it continued output. The system required 1,687 / 5,535 feet of pipe
work, from 25 mm/ 1 inch to 200 mm/ 8 inch diameters, and associated fittings and accessories.
Long-term performance personified With proven advantages over metal and polymer rigid pipework, Trelleborg’s Elastopipe™ offers a 30-year minimum maintenance life for fire deluge and sprinkler systems. Thanks to its corrosion-free performance, system testing frequency can be reduced with confidence while maintaining full 24/7 availability.
Elastopipe™ is highly resistant to impact and jet fire (1400˚C/ 2552°F for one hour), and its light weight, flexibility, ease of cutting and fitting ensure installation is rapid and simple.
Compared with alternative pipe work materials, which need replacing at regular intervals over a platform or vessel lifetime, with frequent testing and maintenance, Elastopipe™ deluge and sprinkler fire safety systems offer very low total life costs.
“Trelleborg provided the complete survey,
design, engineering, supply and
installation package, as well as removing
the old installation.
“It was important that operation of the FPSO
was not affected in any way, and that safety
was considered of paramount importance.
Trelleborg ensured not only a quick
and effective, but also safe installation.”
Christian Eilersen, Director FPSO Projects, Maersk
“Because Elastopipe™ is a synthetic
rubber-based flexible piping system,
it is installed without any welding or other
hot work, such as high speed cutting, which
could comprise the safety of the vessel.
“We installed a temporary Elastopipe™
deluge system for each module, removed
the existing steel pipes, then completed
the permanent Elastopipe™ pipework
and fixings and moved the temporary
deluge on to the next module. This method
ensured that full fire protection was retained
throughout the project.
“In addition, the flexibility and light weight
of Elastopipe™ allow very rapid installation,
compared to a rigid pipe system; it can be
swiftly configured to confined spaces.
The first two modules were completed
in just a month, in contrast to the estimated
15 months to install a comparable
Hans-Leo Hals, Managing Director
Trelleborg Offshore based in Norway