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    • Therminol® VP-3: liquid phase heat transfer fluid

    Therminol® VP-3 is a high temperature stable synthetic heat transfer fluid specifically designed to enable vapor phase heat transfer at lower temperatures than conventional diphenyl oxide (DPO) / biphenyl based fluid blends such as Therminol® VP-1.

    Therminol® VP-3 offers excellent thermal stability at a maximum continuous operating temperature of 330 °C in the liquid or vapor phase. A crystallization point of 2.4 °C makes Therminol® VP-3 easy to handle and can eliminate the need for costly heat tracing in temperate climates.

    Temperature range

    2° to 330°C

    Recommended bulk temp °C

    330

    Max. film temp °C

    360

    Boiling point °C @ 1013 mbar

    243

    Crystallizing Point °C

    2,4

    Flash Point °C (ASTM D92)

    104

    Autoignition Temp °C (DIN 51794)

    351

    Autoignition Temp °C (ASTM E-659)

    360

    Density @ 20°C (kg/m³)

    933

    Kinematic viscosity @ 40°C (mm²/s)

    2,03

    Water Class

    WGK 3

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    Benefits of Therminol® VP-3 for your heat transfer system

    • Easy to handle – Therminol® VP-3 has a normal boiling point of 243 °C, 14 °C below the normal boiling point of Therminol® VP-1. Laboratory thermal stability testing suggests a maximum continuous operating temperature of 330 °C in the liquid or vapor phase. A crystallization point of 2 °C makes Therminol® VP-3 easy to handle and may eliminate the need for costly heat tracing in moderate climates. 

    • Low odor – the odor of Therminol® VP-3 is milder than other vapor phase organic heat transfer fluids. Therminol® VP-3 is a mixture of phenylcyclohexane and bicyclohexyl. It contains virtually no biphenyl. 

    • Class III b combustibility – with an open cup flash point of 104 °C, Therminol® VP-3 is a Class III b combustible fluid under the definitions of the NFPA (U.S. National Fire Prevention Association). As with any other combustible material, proper system design and operation are important to safe operation. Leaks of vapor could condense into a stable mist suspension that may be explosive in certain concentrations in air.

    Discover a wide range of the most common applications for Therminol® VP-3:

    • Plastics and polymer manufacturing
    • Synthetic fiber manufacturing
    • Specialty heat-sensitive polymers manufacturing
    • Specialty chemical manufacturing
    • Extruding
    • Fibers
    • HTF - fine chemicals
    • Polyamide
    • Polyester (PET)
    • Specialty and batch chemical production