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Polyurethane Insulation Systems

ThermoFlo® is a polyurethane-based syntactic foam subsea insulation system designed for flow assurance.

System Description:

  • Layer 1: Anti-corrosion - Fusion Bonded Epoxy
  • Layer 2: Insulation - molded glass syntactic polyurethane

Superior Insulation Properties and Unmatched Mechanical Performance

  • Lower thermal conductivity results in lower achievable U values
  • Extended cool-down time


  • Can be installed using all subsea laying methods including reeling, S-lay and J-lay
  • The elastomeric nature of the material provides excellent impact resistance and fatigue life

FJ Compatibility

  • ThermoFlo® Joint
  • Nemo 1.1

Value Added Services

  • Streamlined delivery schedules, product standardization and quality assurance practices due to simplified processing operations
  • Universally and readily available project management and logistics support from multiple existing plant locations

Product Properties

CAPABILITY/PROPERTY Shallow Water Thermotite®(S)
Minimum pipe diameter 100 mm (4”)
Maximum pipe diameter 600 mm (24”)
Minimum operating temperature -55°C (-67°F)
Maximum operating temperature 90°C (194°F) Wet
Minimum pipe length 1 m (3’)
Maximum pipe length 13 m (43’)
Thermal conductivity (K value) 0.155-0.17 W/m*k
Overall heat transfer coeff. (U value) >2.0W/m2*K (Specific to thermal design)
Water depth <2800m (9200')

Applications / Assets

  • Oil Pipelines
  • Small Diameter Pipelines
  • Subsea Infrastructure


Last Updated: 2/3/2021 10:00:55 AM
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