Dowtherm - Synthetic Organic Fluids

Dowtherm Synthetic Organic Fluids for Extreme Temperature Performance

Dowtherm fluids are 100% synthetic organic heat transfer fluids designed to deliver exceptional thermal stability and long service life across a very wide operating range from -80°C to +400°C. This stability ensures maximum efficiency, minimal degradation, and optimum operating economics for thermic fluid systems.

Exploring the Versatility of Dowtherm Fluids

Product Range
Dowtherm A – Diphenyl Oxide & Biphenyl (15°C to 400°C, Vapour/Liquid Phase)
Dowtherm RP – Liquid Phase Fluid (-20°C to 350°C, Anti-Coking Performance)
Dowtherm J – Dual Heating & Cooling Fluid (-80°C to 315°C)
Dowtherm T – Economical Replacement for Mineral Oils (-10°C to 305°C)
Dowtherm Q – High Stability Fluid (-35°C to 330°C)

These fluids are ideal for reactor jacket heating, chemical processing plants, pharmaceutical manufacturing, polyester plants, solar heating systems, and high-temperature industrial heating where thermal reliability is critical.

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Other Type Of Dowtherm - Synthetic Organic Fluids

Dowtherm A

Dowtherm A is a eutectic mixture of diphenyl oxide and biphenyl and is one of the most widely used heat transfer fluids in the world. It can operate in both liquid and vapour phases between 15°C and 400°C and has an atmospheric boiling point of 257°C, making it ideal for high-temperature heating systems.

Dowtherm RP

Dowtherm RP is a liquid phase heat transfer fluid with an operating range of -20°C to 350°C. It is specially formulated to minimize fouling, scaling, and coking by preventing the formation of high boilers during thermal degradation, offering higher stability than PHT and DBT-based fluids.

Dowtherm J

Dowtherm J is suitable for both heating and cooling applications. It operates in the liquid phase from -80°C to 315°C and in the vapour phase from 181°C to 315°C, allowing system design simplification by using a single fluid for multiple temperature requirements.

Dowtherm T

Dowtherm T is a liquid phase heat transfer fluid for moderate temperature applications, operating from -10°C to 288°C with an extended bulk temperature capability up to 305°C. It serves as an economical synthetic replacement for mineral oils to improve system efficiency and fluid life..

Dowtherm Q

Dowtherm Q offers a recommended operating range from -35°C to 330°C and provides significantly higher thermal stability compared to mineral oils, resulting in better performance and long-term cost savings in thermic fluid systems.