Heat Transfer Fluid 
MultiTherm 660® is a uniquely engineered high-temperature synthetic heat transfer fluid used in non-pressurized / low-pressure liquid phase heating and cooling systems up to 660°F / 349°C.

Purpose 
MultiTherm 660® heat transfer fluid is highly engineered to provide fluid stability and long life. In the Gas Processing it is used in dehydrators, NGL reboilers as well as process equipment, in the Chemical Process to heat & cool reactors as well in heat recovery systems. Biodiesel Production benefits by being able to run at higher temperature in the distillation process and in Plastic Processing to provide consistent heat to molds or dies as well as laminating lines. This is just to name a few.

MultiTherm 660® heat transfer fluid is designed with a maximum film temperature of 710°F / 377°C, autoignition point of 810°F / 432°C and a maximum operating bulk temperature of 660°F / 349°C to provide users with a safe, durable & economical heat transfer fluid over other conventional thermal fluids.

Closed Loop Systems
MultiTherm 660® is designed for use in liquid-phase heat transfer systems, which the circulating loop is “closed” to the atmosphere. To maximize the product’s superior thermal stability, it is recommended that the system have inert gas blanketing the expansion tank. This will guard against exposure to air and water which will minimize oxidative degradation and maximize fluid life.