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Duratherm S

Duratherm S

A silicone based heat transfer fluid that is ideally suited for high oxidation applications or completely exposed systems. Duratherm S is virtually impervious to oxidation at temperatures under 204°C (400°F) and offers superior protection from fluid degradation. Duratherm S is best suited for applications not prone to contamination or leaking.

Max. Operating Temp

316°C (600°F)

Features

  • 316°C (600°F) maximum operating temperature
  • Pumpable down to -50°C (-46°F)
  • Very strong resistance to oxidation up to 204°C (400°F)
  • Recommended for use in fully exposed systems like open baths
  • Highly resistant to fouling for an extremely long service life
  • Non-corrosive and non-toxic thermal fluid for added workplace safety
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Duratherm S

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Temperature Ratings


Max Bulk/Use Temp600°F
Max Film Temp690°F
Pour Point ASTM D97-87°F

Safety Data


Flash Point ASTM D92615°F
Fire Point ASTM D92636°F
Autoignition ASTM E-659-78818°F

Physical Properties


Viscocity ASTM D445

cSt


-60°F299.9
100°F37.4
400°F7.1
600°F4

Density ASTM D1298

lb/ft³


-60°F64.3
100°F59.2
400°F50.7
600°F45

Vapor Pressure ASTM D2879

psia


-60°F0
100°F0
400°F0.02
600°F0.99

Distillation Range ASTM D2887


10%922°F
90%1255°F
Molecular WeightN/A

Thermal Properties


Thermal Expansion Coefficient

0.055%/°F

Thermal Conductivity

BTU/hr·ft·F°


-60°F0.085
100°F0.077
400°F0.063
600°F0.054

Heat Capacity

BTU/lb F


-60°F0.37
100°F0.41
400°F0.486
600°F0.537