Did you know there are many options to consider when selecting thermal fluids?

  1. Temperature is Everything – match your bulk temperature but also consider film temperature, heater type
  2. Controlling Oxidation – high temperature air exposure can destroy the wrong fluid quickly
  3. Maximizing Fluid Life – short-term or long-term use – invest wisely
  4. Availability is Critical – thermal fluids are often critical to production – how long can you wait for your thermal fluid to ship?
  5. Reliable Service & Support – thermal fluids are maintenance-intensive, but can your vendor help you if there are problem

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PRODUCTS

Duratherm LT

Engineered for a variety of heat transfer fluid processes requiring heating and cooling, Duratherm LT is ideal for batch processing operations requiring a low temperature heat transfer fluid that is pumpable down to -29°C (-20°F) – eliminating the need for heat tracing often required in outdoor applications.

  • 225°C (437°F) maximum operating temperature with excellent cooling properties
  • Pumpable at temperatures down to -29°C (-20°F)
  • Capable of performing both heating and cooling cycles
  • Suitable for use in outdoor heating and cooling applications
  • Runs cleaner for a longer service life
  • Easy to dispose of along with other waste oils
Standard
Metric

Temperature Ratings

Max Bulk/Use Temp 225°C
Max Film Temp. 242°C
Pour Point ASTM D97 -57°C

Safety Data

Flash Point ASTM D92 165°C
Fire Point ASTM D92 188°C
Autoignition ASTM E-659-78 245°C

Thermal Properties

Thermal Expansion Coefficient 0.1016 %/°C
Thermal Conductivity W/m·K
38°C 0.145
204°C 0.131
224°C 0.130
Heat Capacity kJ/kg·K
38°C 2.169
204°C 2.740
224°C 2.809

Physical Properties

Viscosity ASTM D445 cSt
40°C 7.99
100°C 2.36
204°C 0.86
224°C 0.76
Density ASTM D1298 kg/l
38°C 0.81
204°C 0.69
224°C 0.68
Vapor Pressure ASTM D2879 kPa
38°C 0.00
204°C 6.03
224°C 10.83
Distillation Range ASTM D2887
10% 325°C
90% 399°C
Molecular Weight 395
Specific Gravity @ 16°C 0.854

Note: The values quoted in the table above are typical of normal production.
They do not constitute a specification.

Temperature Ratings

Max Bulk/Use Temp 437°F
Max Film Temp. 467°F
Pour Point ASTM D445 -72°F

Safety Data

Flash Point ASTM D92 329°F
Fire Point ASTM D92 369°F
Autoignition ASTM E-659-78 473°F

Thermal Properties

Thermal Expansion Coefficient 0.0564 %/°F
Thermal Conductivity BTU/hr·ft·F°
100°F 0.084
399°F 0.076
435°F 0.075
Heat Capacity BTU/lb·F°
100°F 0.518
399°F 0.654
435°F 0.671

Physical Properties

Viscosity ASTM D445 cSt
40°F 29.64
100°F 8.51
Density ASTM D1298 lb/ft³
100°F 50.31
399°F 43.29
435°F 42.36
Vapor Pressure ASTM D2879 psia
100°F 0.00
399°F 0.87
435°F 1.57
Distillation Range ASTM D2887
10% 616°F
90% 750°F
Molecular Weight 395
Specific Gravity @ 60°F 0.854

Note: The values quoted in the table above are typical of normal production.
They do not constitute a specification.

Duratherm LT