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    • Therminol® VP-1: vapor phase heat transfer fluid

    Therminol® VP-1 is an ultra high-temperature synthetic heat transfer fluid designed to meet the demanding requirements of vapor-phase systems or liquid-phase systems. Therminol® VP-1 can be used as a liquid or as a boiling-condensing heat transfer medium up to 400 °C. It is miscible and interchangeable (for topping up or design purposes) with other similarly composed diphenyl oxide/biphenyl fluids. Therminol® VP-1 enters the vapor phase at 257 °C.

    Temperature range

    12° to 400°C

    Recommended bulk temp °C

    400

    Max. film temp °C

    430

    Boiling point °C @ 1013 mbar

    257

    Crystallizing Point °C

    12

    Flash Point °C (ASTM D93)

    110

    Flash Point °C (ASTM D92)

    124

    Autoignition Temp °C (DIN 51794)

    621

    Autoignition Temp °C (ASTM E-659)

    601

    Density @ 20°C (kg/m³)

    1064

    Kinematic viscosity @ 40°C (mm²/s)

    2,48

    Water Class

    WGK 2

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    Your benefits from using Therminol® VP-1 in your thermal oil systems

    • Superb heat transfer properties – Therminol® VP-1 is a synthetic heat transfer fluid which combines exceptional thermal stability and low viscosity for efficient, dependable, uniform performance in a wide optimum use range of 12° to 400°C. Therminol® VP-1 has the highest thermal stability of all organic heat transfer fluids. 

    • Low viscosity – Therminol® VP-1 has a low viscosity to 12°C. Therminol® VP-1 has a low viscosity to 12°C and due to its crystallization point of 12°C, this fluid may require tracing in colder climates to avoid operational problems.

    • Vapor phase heat transfer fluid – Therminol® VP-1 is a eutectic mixture of diphenyl oxide (DPO) and biphenyl. It can be used as a liquid heat transfer fluid or as a boiling-condensing heat transfer medium up to its maximum use temperature. It is miscible and interchangeable (for top-up or design purposes) with other similarly constituted diphenyl-oxide (DPO) / biphenyl fluids. 

    • Precise temperature control – due to its ability to operate as a vapor-phase heat transfer fluid, Therminol® VP-1 is excellent for use in heat transfer fluid systems requiring very precise temperature control. 

    Discover a wide range of the most common applications for Therminol® VP-1:

    • Refining
    • Gas to liquid (GTL)
    • Synthetic fiber manufacturing
    • Specialty chemical manufacturing
    • Chemical manufacturing
    • Concentrated solar power
    • Organic rankine cycle (ORC)
    • Biofuel manufacturing