Triplex Secondary Barrier

Integrated into Mark III technology, the Rigid and Flexible Triplex solutions – which form the secondary barrier – ensure leak-tightness for tanks containing multiple liquids at cryogenic temperatures
Mainly installed in the tanks of LNG carriers transporting LNG at -163 °C, these composite solutions help to enhance the system’s safety in the event of accidental leaks of cryogenic fluids.

Main Benefits

Sealing
Flexibility (for the Triplex-F)
Resistance to extreme temperatures

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Applications

LNG tanks for gas transport
LFS on various types of container ships
Onshore storage tank

Characteristics

Transport of LNG at -163 degrees Celsius
Flexible composite lining (Triplex-F), gas-tight and LNG-tight
Resistance to thermal shock
Seal integrity guaranteed at -196°C
Chemical compatibility: methane | ethane | propane | butane | ammonia | water
Temperature resistance ranging from -196°C to +50°C / (-313°F to +122°F)

Our strengths

Supplier of secondary barriers for over 30 years
Solutions available across more than 300 product references
Compliant with GTT’s M3101 and M4101 specifications
Solutions approved by all major classification societies for use as secondary barriers in GTT’s Mark III containment systems.