High temperature thermal fluids

Production and process industries are facing increasing pressures to maximise productivity. This means the operating temperature of heat transfer systems is increasing and must be reached faster. To achieve this, high performance, high temperature heat transfer fluids are needed, but efficiency is not the only requirement for systems operating at high temperatures.

All thermal oils degrade over time, but this is accelerated at high temperatures. In fact, for every 10°C increase in temperature, the lifespan of a heat transfer fluid decreases by half. Therefore, if you require high temperature heat transfer, you need a heat transfer fluid with excellent thermal stability.

High temperature heat transfer fluids typically have a high boiling point and low vapour pressure to avoid unwanted vaporisation. They also have a high flash point and high fire point to minimise fire risk and ensure the safety of staff working in the facility.

We offer a wide range of thermal fluids with different operating temperature ranges because we understand that every industrial process has specific temperature requirements. Our liquid phase heat transfer fluids are suitable for systems operating at 15°C to 400°C and our vapour phase heat transfer fluids can operate at 257°C to 400°C.

Your choice of thermal oil will depend on your application. Identify the temperature range you need it to operate at, whether it will be used in an open or closed heat transfer system and the safety requirements.

If you need a heat transfer fluid that meets the demands of liquid phase and vapour phase systems, consider Globaltherm ® Omnitech.

You may also want to consider our most popular heat transfer fluid, Globaltherm ® Syntec, which uses hydrogenated terphenyls chemistry and is suitable for a wide range of applications.

Contact us for more information on high temperature thermal oils

We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

Call us on +44 (0)1785 760555 for more information.

Application

Globaltherm® Omnitech is a high performance synthetic heat transfer fluid designed to meet the demands of liquid or vapour phase systems and indirect heat transfer. The no.1 choice for concentrated solar power and thermal electricity applications, PET and plastics production and chemical industries.

About Globaltherm® Omnitech

Globaltherm® Omnitech is a synthetic heat transfer fluidwhich combines low viscosity and exceptional thermal stability for consistent performance.

  • Globaltherm® Omnitech is a diphenyl ether-biphenyl HTF mixture
  • The eutectic mixture of diphenyl oxide and biphenylgives this heat transfer fluid flexibility to perform in both vapour and liquid phases. It is miscible and interchangeable (for top-up or dilution purposes) with other similar mix thermal fluids.
  • Globaltherm Omnitech HTF has low viscosity (2.5 cst at 40°C [104°F])
  • This thermal fluid is excellent for use in heat transfer fluid systems which require very precise temperature control due its ability to operate as a vapour phase fluid
  • This heat transfer fluid is highly dependable
ProductOperating Temperature1000 Litre IBC208 Litre barrelBulk
Globaltherm® Omnitech (15°C – 400°C)15°C to 400°C

Contact us for more information on high temperature thermal oils

We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

Call us on +44 (0)1785 760555 for more information

Marlotherm® LH is a high temperature heat transfer fluid designed for use in closed loop, forced circulation heat transfer systems.

This high performance heat transfer fluid is predominantly used in pharmaceutical and plastics processing.

What are the advantages of Marlotherm® LH?

  • The fluid can be used in both liquid and vapour form due to its narrow boiling range of around 4°C
  • Marlotherm® LH is a non-corrosive benzyltoluene HTF
  • This thermal fluid has low viscosity for excellent heat transfer efficiency
  • Marlotherm® LH is a benzyl aromatic with excellent thermal stability

Marlotherm® LH operating temperature

  • Marlotherm® LH is recommended for use in the temperature range from -30°C (-22°F) to 280°C (536°F)
  • This heat transfer fluid can also be used intermittently at film temperatures as high as 380°C and used in pressurised systems up to 360°C
  • Marlotherm® LH has a high auto-ignition temperature of 450°C (842°F)
  • This heat transfer fluid has low pour point and a pumping limit of -30°C (-22°F)

Thermal fluid specialist Global Heat Transfer stocks and delivers a wide range of premium quality heat transfer fluids, including Marlotherm® LH. The company also provides the complete solution for global thermal fluid supply and management.

If properly maintained and routinely tested, heat transfer fluids will provide good service over extended periods.

Engineers should follow a preventative maintenance programme that includes regular sampling to monitor fluid condition. Engineers should take the sample when the system is hot, closed and circulating to get an accurate representation of the fluid inside the system. Global Heat Transfer provides a complete thermal fluid analysis service to analyse fluid samples, track degradation and offer maintenance support.

For more extensive support, manufacturers should consider Global Heat Transfer’s Thermocare programme, a comprehensive maintenance strategy that includes regular sampling and systems checks as well as engineering services.

Choosing the correct heat transfer fluid

If you want advice on how to choose the optimal heat transfer fluid for your application, get in touch by calling +44 (0)1785 760 555. Find contact details for our offices here.

Application

Marlotherm® SH is a high performance dibenzyltoluene heat transfer fluid for use in closed loop, forced circulation heat transfer systems. Primary uses are chemical industries and plastics processing.

About Marlotherm® SH

Marlotherm® SH is recommended for use in the temperature range from 250°C (482°F) to 350°C (662°F), but can be used intermittently at film temperatures as high as 380°C (716°F).

  • Marlotherm® SH heat transfer fluid is non-corrosive
  • Marlotherm®  SH HTF can be used without being pressurised
  • This dibenzyltoluene heat transfer fluid can be used in systems requiring start-up temperatures as low as -5°C (23°F) without the need for heat tracing
  • Marlotherm® SH thermal fluid is thermally stable up to 300°C (572°F) and can be used for several years below this temperature without reducing performance
  • Low viscosity 17 cSt @ 40°C (104°F) with a pumping limit at -5°C (23°F) – making it the lowest in its fluid class
  • This thermal fluid has a high flash point 200°C – one of the highest in its fluid class
  • Marlotherm®  SH HTF has superior thermal stress resistance in the bulk outlet temperature range  from 60°C-350°C (140°F - 662°F)

Contact us for more information on high temperature thermal oils

We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

Call us on +44 (0)1785 760555 for more information

Application

The most popular high temperature, heat transfer fluid. Suitable for operation up to 345°C (653°F) and can pumped to -3°C (27°F) and delivers exceptional performance. Primary applications are chemical industries, plastics processing and biodiesel.

About Globaltherm® Syntec

  • Globaltherm® Syntec uses the hydrogenated terphenyls chemistry of the most popular high temperature liquid phase heat transfer fluid. No other heat transfer fluid delivers a higher degree of customer satisfaction.
  • Globaltherm® Syntec HTF is used in a wide variety of applications in systems all over the world and delivers ultimate performance to ensure your system is running at maximum capacity and optimum efficiency.

Find out more about the properties of Globaltherm Syntec

Contact us for more information on high temperature thermal oils

We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

Call us on +44 (0)1785 760555 for more information

Application

Globaltherm® NF is a non-fouling, non-toxic, high performance semi synthetic heat transfer fluid specially developed for use in food processing plants and industrial heat transfer.

About Globaltherm® NF

Made from severely hydro treated synthesised hydrocarbon base stocks, Globaltherm® Non-Fouling has outstanding thermal and oxidation stability allowing operation at high temperatures for extended periods. It is non-hazardous, non-toxic, water white and odourless.

This heat transfer fluid has high flash/fire points and provides extra resistance to sludging.

Globaltherm® NF properties

Contact us for more information on high temperature thermal oils

We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

Call us on +44 (0)1785 760555 for more information

Application

A superior high performance energy efficient heat transfer fluid suitable for use in all kinds of industrial processes.

About Globaltherm® M

Made from highly refined base stocks, Globaltherm® M thermal fluid has excellent thermal and oxidation stability allowing operation at high temperatures for extended periods.

The fluid also has efficient thermal conductivity and low viscosity, at the relevant operating temperatures, ensure high heat transfer rates requiring limited pumping energy.

Globaltherm® M heat transfer fluid provides:

  • low vapour pressures at elevated temperatures
  • greatly reduced evaporation
  • vapour lock and cavitation eliminating the need for high pressure piping and equipment

Used fluid may be disposed of through a number of environmentally acceptable methods such as used oil recycling or heavy fuels burning.

Find out more about the properties of Globaltherm® M

Contact us for more information on high temperature thermal oils

We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

Call us on +44 (0)1785 760555 for more information

Application

Globaltherm® Omnipure is a highly efficient non-toxic, heat transfer fluid that is designed specifically for Concentrated Solar Plant (CSP) and thermal storage applications, PET and plastics production and chemical industries.

About Globaltherm® Omnipure

This heat transfer fluid is made from highly refined mineral oil and has superior oxidation properties for optimum performance.

  • Globaltherm® Omnipure thermal  fluid is made from severely hydro-treated base stocks and has outstanding thermal oxidation stability allowing for operation at high temperatures for extended periods.
  • Globaltherm® Omnipure is non-hazardous, non-toxic, water white and odourless.
  • This heat transfer fluid is specifically developed for non-pressurised, indirectly heated, liquid phase heat transfer systems found in Concentrated Solar Plant (CSP) and thermal storage applications that require bulk temperatures up to 326°C (619°F)
ProductOperating Temperature1000 Litre IBC209 Litre barrelBulk
Globaltherm® Omnipure (-20°C – 326°C)-20°C to 326°C

Understand the properties of Globaltherm® Omnipure

Contact us for more information on high temperature thermal oils

We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

Call us on +44 (0)1785 760555 for more information

Application

Non-toxic and non-flammable heat transfer media. Globaltherm® Omnistore MS-600 is the high temperature heat transfer media for Concentrated Solar Power (CSP) and thermal electricity storage applications.

About Globaltherm® Omnistore MS-600

  • Globaltherm® Omnistore MS-600 – is a molten salt heat transfer media used in solar thermal storage applications at very high temperatures.
  • Omnistore MS-600 can safely withstand temperatures up to 600°C (1076°F), higher than most heat transfer media on the market today.
  • Globaltherm® Omnistore MS-600 molten salt  heat transfer media has excellent thermo-physical properties in the liquid state, such as low viscosity, high heat capacity, and high thermal conductivity. Globaltherm’s heat transfer molten salts provide long-term heat storage for high-temperature applications.
  • Globaltherm® Omnistore MS-600 minimises safety hazards and the need for high-pressure equipment.
ProductOperating Temperature1000kg sack
Globaltherm® Omnistore MS-600 (149°C – 600°C)149°C to 600°C

Contact us for more information on high temperature thermal oils

We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

Call us on +44 (0)1785 760555 for more information

Application

Globaltherm® L is a multi-purpose high performance benzyltoluene heat transfer fluid. It is for use in closed loop heat transfer systems. It is used predominantly in pharmaceutical industries and plastic processing and can be used in liquid and vapour form.

About Globaltherm® L

Globaltherm® L benzyltoluene HTF is recommended for use in the temperature range from -30°C (-22°F) to 360°C (680°F), but can be used intermittently at film temperatures as high as 380°C (716° F). It can also be used in pressurised systems up to 360°C (680°F).

  • Multi-purpose HTF in bulk outlet temperature ranges:
  • -20°C (-4°F) to 280°C (536°F) in non-pressurised heat transfer systems
  • 280°C (536°F) to 680°C (680°F) in pressurised or liquid-vapour heat transfer systems
  • Globaltherm® L heat transfer fluid is non-corrosive
  • Globaltherm® L can be used in the liquid or liquid/vapour phase due to its narrow boiling range of around 4°C (39°F)
  • This heat transfer fluid has low pour point and pumping limit
  • -30°C (-22°F)
  • A thermal fluid with low viscosity for excellent heat transfer efficiency
  • Globaltherm® L is a benzyl aromatic with excellent thermal stability
ProductOperating Temperature1000 Litre IBC208 Litre barrelBulk
Globaltherm® L (-30°C – 360°C)-30°C to 360°C

Contact us for more information on high temperature thermal oils

We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

Call us on +44 (0)1785 760555 for more information

Application

Globaltherm® N is a synthetic organic heat transfer fluid. This thermal fluid can be used in the liquid phase in closed, non-pressurised heat transfer systems and can be used as an alternative to mineral oils or hot oils. Primarily used in chemical industries and plastic processing applications.

About Globaltherm® N

This heat transfer fluid is recommended for use in heat transfer fluid systems operating in the temperature range from 150°C (302°F) to 300°C (572° F).

  • This thermal fluid has proven to be extremely stable to thermal degradation, has low odour and is non-toxic
  • The bulk outlet temperature range is 60°C (140°F) - 300°C (572°F) and a pour point of 60°C (140°F)
  • Globaltherm® N is particularly suitable in applications for which exposure to air cannot be completely prevented
  • Globaltherm® N can be used in systems requiring low start-up temperatures from -10°C (-14° F) without the need for heat tracing
  • This heat transfer fluid is non-corrosive
ProductOperating Temperature1000 Litre IBC208 Litre barrelBulk
Globaltherm® N (-10°C – 300°C)-10°C to 300°C

Contact us for more information on high temperature thermal oils

We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

Call us on +44 (0)1785 760555 for more information

Application

Globaltherm® C is an organic stress resistant heat transfer fluid for use in the liquid or vapour phase in closed heat transfer systems with forced circulation.

About Globaltherm® C

Globaltherm® C can be used in heat transfer systems for use as a liquid in non-pressurised systems from -90°C (-130°F) to 153°C (307°F) and in pressurised systems up to 300°C (572°F).

  • This thermal fluid is for use in multi-purpose heat transfer systems where heating and cooling loops must be operated simultaneously
  • Globaltherm® C is thermally stable up to 300°C (572°F) and particularly suitable in applications where exposure to air cannot be completely prevented
  • This product provides turbulent flow and efficient heat transfer to -80°C (-112°F)
  • Globaltherm® C can be used in systems requiring low start-up temperatures from -90°C (-130°F) without the need for heat tracing
  • Globaltherm® C operates effectively in non-pressurised systems in the range -80°C - 180°C (-112°F - 356°F)
  • This heat transfer fluid is non-corrosive.
ProductOperating Temperature208 Litre barrel
Globaltherm® C (-90°C – 300°C)-90°C to 300°C

Contact us for more information on high temperature thermal oils

We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

Call us on +44 (0)1785 760555 for more information

Application

Globaltherm® S is a high performance heat transfer fluid for use in closed loop, non-pressurised heat transfer systems. Primary uses are chemical industries and plastic processing applications.

About Globaltherm® S

Globaltherm® S is recommended for use in an upper temperature range from 250°C (482°F) to 350°C (662°F), but can be used intermittently at film temperatures as high as 380°C (716° F).

  • Globaltherm® S heat transfer fluid is non-corrosive and can be used in non-pressurised heat transfer systems
  • This heat transfer fluid can be used in systems requiring start-up temperatures as low as -5°C (23°F) without the need for heat tracing
  • Globaltherm® S thermal fluid is thermally stable up to 300°C (572°F) and can be used for several years below this temperature with no adverse impact on performance
  • Low viscosity 17cSt @ 40°C (104°F) with a pumping limit at -5°C (23°F)
  • This thermal fluid has a high ASTM D93 flash point at 200°C – the highest in class
  • Globaltherm® S has high thermal stress resistance in the bulk temperature range  from 60°C-350°C (140°F - 662°F)
  • Globaltherm® S has a highly aromatic structure with a boiling point range of 385°C -395°C (725°F -743°F) - the highest in class
ProductOperating Temperature1000 Litre IBC208 Litre barrelBulk
Globaltherm® S (-5°C – 350°C)-5°C to 350°C

Contact us for more information on high temperature thermal oils

We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

Call us on +44 (0)1785 760555 for more information

Application

Non-hazardous, low toxicity, silicone based heat transfer fluid. Globaltherm® Omnisol is the high temperature silicone based thermal fluid for Concentrated Solar Power (CSP) thermal storage applications.

About Globaltherm® Omnisol

  • Globaltherm® Omnisol – is a silicone based heat transfer media used in solar thermal storage applications at high temperatures.
  • Omnisol can safely withstand temperatures up to 425°C (797°F).
  • Globaltherm® Omnisol delivers the high thermal stability and reliable heat transfer of a polydimethylsiloxane mixture with a low pumpability point of -65°C (-85°F). Globaltherm ® Omnisol is a high performing low toxicity, low fire risk, heat transfer fluid for CSP applications operating up to 425°C (797°F).
  • Globaltherm® Omnisol is suitable for use in parabolic trough applications requiring a low freeze point and low temperature pumpability.
ProductOperating Temperature1000 Litre IBC200kg barrelBulk
Globaltherm® Omnisol (-65°C – 425°C)-65°C to 425°C

Contact us for more information on high temperature thermal oils

We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

Call us on +44 (0)1785 760555 for more information

Application

Globaltherm® RP Heat transfer fluid is a heat transfer agent suitable for applications requiring single fluid heating and cooling including; oil and gas, heat recovery, plastics, polymers and styrene and chemical processing.

About Globaltherm® RP

  • Globaltherm® RP Heat transfer fluid is recommended for use in a temperature range up to a maximum bulk temperature of 660°F (350°C) and a maximum film temperature of 710°F (375°C).
  • Globaltherm® RP is a diaryl alkyl composition intended for use in applications that require liquid phase heat transfer.
  • Globaltherm® RP fluid can be used in non-pressurised systems, and is pumpable to 0°C (32°F).
  • Globaltherm® RP can be used in non-pressurized, liquid phase systems and has good low temperature properties, reducing the need for heat tracing.
  • Globaltherm® RP has a high flash point at 194°C (381°F) and delivers excellent thermal stability at the maximum use temperature.
  • Globaltherm® RP degrades primarily to low molecular weight products, therefore negating build-up of high molecular weight products that must be removed from the system.
  • Globaltherm® RP has a toxicity that is considered to be extremely low.
ProductOperating Temperature1000 Litre IBC200kg barrelBulk
Globaltherm® RP (-20°C – 350°C)-20°C to 350°C

Globaltherm RP properties

Contact us for more information on high temperature thermal oils

We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

Call us on +44 (0)1785 760555 for more information

Application

Globaltherm® HF Heat transfer fluid is a heat transfer agent suitable for applications requiring single fluid heating and cooling including; plastics processing, moulding, casting, asphalt, paint and chemicals.

About Globaltherm® HF

  • Globaltherm® HF heat transfer fluid’s flash point is one of the industry’s highest at 530°F (276˚C).
  • Not only does this heat transfer fluid have one of the highest flash points available it also contains a resilient blend of additives to ensure trouble-free service when managed correctly.
  • Globaltherm® HF heat transfer fluid delivers superior resistance to extreme oxidation and sludging found in many manufacturing environments, including plastics processing, molding, casting, asphalt, paint and chemicals.
  • This heat transfer fluid is environmentally friendly, non-toxic and non-hazardous and requires no special handling.
  • A superior high performance, energy efficient heat transfer fluid suitable for use in a variety of industrial processes.
ProductOperating Temperature1000 Litre IBC208 Litre barrelBulk
Globaltherm® HF (5°C – 338°C)5°C to 338°C

Properties of Globaltherm® HF

Contact us for more information on high temperature thermal oils

We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

Call us on +44 (0)1785 760555 for more information

Application

GLOBALTHERM® D Heat transfer fluid is a synthetic organic heat transfer fluid designed for relatively low-temperature use in the liquid phase in closed unpressurised heat transfer systems with forced circulation. The recommended upper temperature limit is 200°C.

This thermal fluid meets the FOA Regulation CFR 21 Part 178.3530 and 178.3650 and is primarily used in chemical processing applications.

About Globaltherm® D

Globaltherm® D is recommended for use in heat transfer fluid systems operating in the temperature range from -80°C (-112°F) to 200°C (392° F).

  • The product is most suitable for indirect cooling in refrigeration plants and in processes
  • GLOBALTHERM® D Heat transfer fluid is thermally stable over the recommended usage range and provides good performance
  •  GLOBALTHERM® D Heat transfer fluid is intended for use as heat-transfer medium in a closed plant.
  • This heat transfer fluid does not corrode metallic materials used in the construction of heat transfer systems.
  • This heat transfer fluid is a non-corrosive clear heat transfer fluid

Contact us for more information on high temperature thermal oils

We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

Call us on +44 (0)1785 760555 for more information

About Globaltherm® LT Plus heat transfer fluid

  • Globaltherm® LT Plus Heat transfer fluid is a mixture of isomers of an alkylated aromatic
  • Globaltherm® LT Plus Heat transfer fluid is specially engineered for demanding low-temperature applications in liquid phase pressurised systems.
  • This fluid is recommended for use in heat transfer fluid systems operating in the temperature range from -81°C (-114°F) to 315°C (599° F).
  • A superior high performance, energy efficient heat transfer fluid suitable for use in all kinds of industrial processes.
  • Globaltherm® LT Plus Heat transfer fluid is suitable for applications requiring single fluid heating and cooling
  •  This heat transfer fluid can also be used in in vapour phase systems operating from 180 to 315°C

Find out more about the properties of Globaltherm® LT Plus

Contact us for more information on high temperature thermal oils

We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

Call us on +44 (0)1785 760555 for more information

Using Globaltherm® MXT

  • Globaltherm® MXT Heat transfer oil contains a highly resilient blend of additives resistant to sludging and ensures long-lasting and trouble-free service when managed correctly
  • This heat transfer oil is a mineral based liquid phase heat transfer oil used for operating at bulk temperatures between -7°C and 320°C in both open and closed circulation.
  • Globaltherm® MXT heat transfer oil is resistant to the oxidation and thermal cracking found in many industrial processing environments, including; chemical, pharmaceutical, plastics, paper, wood and textiles.
  • Globaltherm® MXT Heat transfer oil is non-toxic and non-corrosive.
  • This Heat transfer oil is suitable for a range of indirect open and closed liquid phase industrial heat transfer systems.
  • Used oil may be disposed of through a number of environmentally acceptable methods such as used oil recycling or heavy fuels burning.

Talk to us about our all-inclusive reprocessing services.

The properties of Globaltherm® MXT 

Contact us for more information on high temperature thermal oils

We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

Call us on +44 (0)1785 760555 for more information

Application

Globaltherm® J Heat transfer fluid is a superior high performance, energy efficient heat transfer fluid suitable for use in all kinds of industrial processes.

About Globaltherm® J

  • This high performance heat transfer fluid is a mixture of isomers of an alkylated aromatic specially engineered for demanding low-temperature applications in liquid phase pressurised systems.
  • Globaltherm® J Heat transfer fluid is a heat transfer agent suitable for applications requiring single fluid heating and cooling.
  • This fluid is recommended for use in a temperature range from <-80°C (-112°F) up to a maximum bulk temperature of 315°C (600°F) in the liquid phase.
  • This heat transfer fluid can also be used in vapour phase systems operating from 181°C to 315°C (358°F - 600°F).
  • This heat transfer fluid offers outstanding low-temperature pumpability and excellent thermal stability for protection against accidental overheating.
ProductOperating Temperature1000 Litre IBC200kg barrelBulk
Globaltherm® J (-80°C – 315°C)-80°C to 315°C

Globaltherm® J properties

Contact us for more information on high temperature thermal oils

We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

Call us on +44 (0)1785 760555 for more information