Temperature stability is essential in a heat transfer system. Consult this collection of heat transfer fluids to find those that will benefit your process.

Non-Hazardous Heat Transfer Fluids Come with Troubleshooting Help

Within a temperature range of -170 to 650°F (-112 to 343°C), efficient, non-hazardous heat transfer fluids can successfully accommodate heating or cooling requirements. Troubleshooting help and fluid analysis services are available to determine the physical and chemical condition of the fluid.

(800) 225-7440

System Cleaner Liquid Dissolves Sludge, Restores Performance

Paratherm LC liquid restores thermal fluid system performance on the fly. Cleaning while the system operates, it dissolves and suspends sludge deposits that can reduce flow -- and thus heat transfer -- in larger continuously operated hot-oil systems. Compatible with mineral-oil-based fluids, it operates while the system does, eliminating the downtime and extra handling and disposal involved with flushing fluids or chemical cleaning agents.

Paratherm Corp.
(610) 941-4900

Food-Grade Fluids Certified Kosher, Pareve

Company has rebranded its Calflo FG heat transfer fluid to Purity FG heat transfer fluid to better reflect its food-grade attributes. Bringing Calflo FG into the Purity FG family also clarifies that the company offers a line of food-grade products that includes hydraulic fluids, compressor fluids, EP gear fluids, grease, chain fluids, MF aerosol, white mineral oils, trolley fluid and heat transfer fluid. Purity FG products are NSF H1 registered and fit in HACCP and GMP programs. They are certified Kosher and Pareve by Star K.

(888) 284-4572

Thermal Fluid Rated to 600°F, Withstands Oxidative Environments

Duratherm 600 contains an aggressive blend of additives to help ensure long, trouble-free operation. The high temperature fluid is specifically engineered to withstand the extreme oxidation environment in open systems such as extrusion, blow molding and electrically heated portable systems. A proprietary dual-stage anti-oxidant system, seal and gasket extender as well as numerous other additives ensures a cleaner, longer running fluid. Primary applications are systems requiring heat transfer fluid temperatures to 600°F (316°C) as it has resilience to harsh environments.

Duratherm Extended Life Fluids
(800) 446-4910

Propylene Glycol Fluid Protects Metals

Safe-T-Therm is an inhibited propylene glycol designed to protect metals such as brass, copper, solder, steel, and cast iron. The fluid's formula also includes an orange dye for leak detection and an antifoam agent to minimize foaming during service. Using the propylene-glycol based fluid in place of brine solutions or uninhibited glycol/water solutions can lower maintenance costs and improves heat transfer efficiency.

Houghton Chemical
(800) 777-2466

Corrosion-Resistant Fluid Passivates Metal Components

Designed to protect brass, copper, steel, cast iron, aluminum and other metals used in cooling and heating systems, Jeffcool coolants and heat transfer fluids contain corrosion inhibitors that attach to metal surfaces to passivate them. The ethylene-glycol- and propylene-glycol-based fluids can be used for process cooling.

Huntsman Corp.
(713) 235-6303

Synthetic Heat Transfer Fluid Is Pumpable

Thermaflo 660 is a high-performance synthetic heat transfer fluid designed for use in nonpressurized, indirect, liquid heat transfer systems. It offers exceptional thermal stability and resistance to oxidation in the temperature range of 32 to 653°F (0 to 345°C). It offers superior overall performance in the range of 150 to 653°F (65 to 345°C), where its kinematic viscosity is below 10 cSt and turbulent flow can generally be ensured. With a pour point of -33°F (-27°C), the fluid is readily pumpable (i.e., it exhibits a viscosity of less than 400 cSt) at 41°F (5°C), ensuring easy startup under almost any conditions.

Chem Group Inc.
(877) 642-8182

Low-Temperature Heat Transfer Fluid for Pharmaceuticals

Therminol VLT has been selected by Cambridge Major Laboratories to run its GMP facility. Suited for single-fluid heating and cooling systems between -175 and 350°F (-115 and 175°C), the fluid is designed to meet the needs of the pharmaceutical industry. Cambridge will use the low-temperature fluid with the capability of going below -148°F (-100°C) in its efforts to scale up current processes.

Solutia Inc.
(800) 426-2463

Heat Transfer Fluid Has Corrosion Inhibitors

Oxygen and heat transfer fluid surface contact in a system's expansion tank or elsewhere can cause metal corrosion and acidity. Xceltherm 500M inhibits the ability of oxygen to damage system components and the fluid, especially when materials of construction such as copper or brass are present. With an operating range of -80 to 500°F (-62 to 260°C), it can be used for heating or cooling. The operating temperature range allows a system designed for water to run at higher temperatures without pressure by switching to a hot oil product.

Radco Industries Inc.
(630) 232-7966

Fluids Offered in Many Chemistries

Available in a range of product chemistries, these heat transfer fluids deliver performance characteristics for stability, pressure, pumpability and other system operating requirements. Included are Dowtherm synthetic organic fluids; Syltherm silicone fluids; Ucon polyalkylene glycol-based fluids; and Dowtherm, Dowfrost, Dowcal and Ucartherm inhibited glycol-based fluids. The company's global team of heat transfer experts offers a complete package of technical support.

Dow Chemical Co.
(800) 447-4369

Portable Filtration System Removes Carbon, Coke, Sludge

Portable heat transfer fluid (hot oil or thermal fluid) system filters hot fluids at temperatures up to 375°F (191°C) and has temperature options rated up to 650°F (343°C). It is designed to remove carbon, coke and sludge, reduce degradation and optimize thermal fluid life and overall efficiency of heat transfer fluids. It has carbon steel construction to minimize potential for leaks. Pump flow rates from 5 to 15 gal/min are available.

Liquid Process Systems
(888) 786-1101

Fluorinated Heat Transfer Fluid Will Not Ignite

Galden PFPE fluids are perfluoropolyethers and contain only carbon, fluorine and oxygen. Properties include chemical and thermal resistance, nontoxicity, excellent dielectric properties, no flash or fire point and low viscosity. Typical applications include heat transfer, electronic reliability testing and vapor phase. For heat transfer applications, the Galden HT line offers boiling points from 131 to 518°F (55 to 270°C) and pour points from less than -175°F (-115°C) to -86°F (-66°C). Typical use range temperatures exceed 540°F (300°C) Applications include electronic reliability testing including thermal shock and hermetic seal testing as well as vapor-phase heating applications such as polymer thick films and solder masking.

Solvay Solexis
(800) 323-2874