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About Heat Transfer Fluids and Thermal Oils

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Heat transfer fluids and thermal oils are used to carry thermal energy in process heating, metal working, and machine cooling applications. There are several types of products. Circulating coolants, chiller fluids, anti-freezes, and refrigerants are used to transfer heat or provide cooling within machinery, process equipment or combustion engines. Hot oils, heater oils, and other thermal fluids are used to provide or transfer heat to a region near machinery or process equipment. Typically, products such as refrigerants, hot oils, and anti-freezes provide indirect heating or cooling and do not come into contact with the machinery or equipment. By contrast, metal working fluids and quenchants contact the workpiece or component directly. Most heat transfer fluids and thermal oils are used in circulating process heaters, chillers or coolers between a heat source and heat sink. Primary refrigerants provide cooling via phase changes or a Rankine cycle that consists of evaporative cooling and heat transfer. Secondary refrigerants include both circulating coolants and anti-freezes.

Heat transfer fluids and thermal oils vary in terms of chemical composition. Synthetic products include ester and diester compounds, polyglycol and water-glycol fluids, and silicone-based greases and oils. They are formulated from alkaline organic and inorganic compounds and used in diluted form with concentrations ranging from 3% to 10%. Non-synthetic products consist of petroleum or mineral oils and may include water. Synthetic products are more expensive than non-synthetic fluids, but provide better fire resistance and cooling performance. The cost and heat transfer performance of semi-synthetic fluids falls between those of synthetic and soluble oil fluids. Chlorofluorocarbons (CFCs) are nonflammable chemicals that contain carbon, chlorine, and fluorine. Halogenated fluorocarbon (HFC), halogenated chlorofluorocarbon (HCFC), and perfluorocarbon (PFC) fluids are included in this group.


Products & Services Related to Heat Transfer Fluids and Thermal Oils
Dielectric Greases and Insulating Fluids
Dielectric greases and insulating fluids are insulating oils, greases, transformer oils and fluids that have a high dielectric strength and are used in transformers, capacitors, EDM machining, and other electrical device applications.
Hydraulic Oil and Transmission Fluids, Industrial
Industrial hydraulic oil and transmission fluids are used to transmit power in hydraulic equipment and power transmission applications.
Industrial Greases
Industrial greases are thickened gels that consist of natural, synthetic, or semi-synthetic substances. They do not run off surfaces and are used in a variety of lubrication, sealing, and exclusion applications.
Industrial Lubricants
Industrial lubricants are oils, fluids, greases and other compounds designed to reduce friction, binding or wear and exclude moisture. Specialized characteristics may enhance thermal conduction across thermal interfaces or reduce electrical resistivity across electrical joints.
Metal Working Lubricants, Coolants and Fluids
Metal working lubricants, coolants and fluids are specialized coatings and carriers for metal forming, metal cutting, lapping, polishing, and grinding applications.
Mold Releases and Release Agents
Mold releases and release agents are film forming lubricating oils, solid lubricants, waxes, fluids or coatings that prevent other materials from sticking or adhering to an underlying surface.
Synthetic Oils, Greases and Lubricants
Synthetic oils, greases and lubricants are based on synthetic compounds such as silicone, polyglycol, esters, digesters, chlorofluorocarbons (CFCs) and mixtures of synthetic fluids and water. 

Other Topics You Might Be Interested In
Flash point is the lowest temperature at which a liquid can give off sufficient vapors to form an ignitable mixture in air near the surface of the liquid. The lower the flash point, the easier it is... (Read More)
Synthetic or semi-synthetic fluids or greases are based on synthetic compounds such as silicone, polyglycol, esters, diesters, chlorofluorocarbons (CFCs), and mixtures of synthetic fluids and water. (Read More)
Kinematic viscosity is the time required for a fixed amount of fluid or oil to flow through a capillary tube under the force of gravity.  Units of kinematic viscosity are stoke, centistoke (1/100 of a... (Read More)

Engineering Web: Heat Transfer Fluids and Thermal Oils
Pages: 1 - 5 of 802816
Heat Transfer Fluids, Hot Oils, Thermal Fluid
... heat transfer oils are stocked in 6 locations around North America (and 5 more around the world) so you can get them fast.   Click on Availability to see where.. So click on Heat Transfer Fluids or   ...
See Paratherm Corporation Information
Low Temperature Heat Transfer Fluids
Heat transfer fluids providing precise, uniform liquid temperature control in process heating applications at temperatures from -148 to 650 degrees F ...
See Paratherm Corporation Information
Process Equipments,Heat Exchangers,Heat Transfer Fluids Category Manufacturers
... Fluids. (1 company) Sludge-Resistant Heat Transfer Fluids. (2 companies) System Cleaners. (1 company) Thermal Fluids. (2 companies) Thermal Fluids for Food Grade Applications. (1 company) Thermal Oils ...
Heat Transfer Fluids by RADCO Industries
Heat Transfer Fluids Hot Oils Find out why Radco Industries XCELTHERM® heat transfer fluids outperform other products. We did that on purpose. Heat Transfer Fluids, Synthetic and Thermal Hot Oils, at ...
See Radco Industries, Inc. Information
Paratherm Corporation - Manufacturers of heat transfer fluids, thermal fluids, ...
... Process. Specialized in: Heat Transfer Fluid - Heat Transfer Fluids - Thermal Fluids - Hot Oil - Thermal Liquid - Thermal Oils - Fluid Heat Cool - Heating Fluids - Physical And Thermal Properties - ...

Part Numbers for Heat Transfer Fluids and Thermal Oils

Part # Distributor Manufacturer Product Category Description
Heat Transfer Fluid   Dow Chemical Heat Transfer Fluids and Thermal Oils Suitable for freeze and burst protection of pipes
500   Dow Chemical Heat Transfer Fluids and Thermal Oils For use in heat transfer applications up to 500F
50-HB-260-Y3   Dow Chemical Heat Transfer Fluids and Thermal Oils For use in heat transfer applications up to 500F
25   Dow Chemical Heat Transfer Fluids and Thermal Oils Ideal for formulations used in printed circuit board manufacturing
LO-500   Dow Chemical Heat Transfer Fluids and Thermal Oils An oleyl alcohol-propylene oxide polymer

More >>
See more product announcements for Heat Transfer Fluids and Thermal Oils
Inhibited Glycol Fluids/Coolants

Inhibited Glycol Fluids/Coolants
Dow Chemical


FLUIDFILE Selection Program

FLUIDFILE Selection Program
Dow Chemical


Paratherm HE®

Paratherm HE®
Paratherm Corporation


11 See more product announcements for Heat Transfer Fluids and Thermal Oils

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