SHARJAH, UAE – Unique Group’s Diving & Life Support division has delivered a surface nitrox dive system to Asian subsea contractor FSDS Diving Services.
The system was ABS-classed, ATEX Zone 2-certified, IMCA-compliant and rated to -20°C (-4°F).
It comprised an 1800 decompression chamber, a dive control and client area, and a machinery and gas storage space, each housed in EN12075 offshore lift containers.
In addition, Unique supplied two hydraulic zone-rated open cage diver LARS units.
According to the company, zone rated systems are typically required for diving projects alongside FPSOs when there is risk of hazardous and flammable gas clouds such as hydrogen sulfide.
The equipment must be designed for continuous operations during a gas cloud, and is enclosed in pressurized and fire rated containers.
The latter are kept safe through the use of gas protection systems and control over-pressurized spaces.