Propylene Glycol Leaving Temperature Degrees F If you are using glycol concentrations above 30%, consult factory prior to purchasing your chiller for chiller selection assistance. Our heat exchangers start out with 30% more surface area capacity than the heat exchangers used by other manufacturers so you still have full capacity with 30% water-glycol solutions. However, the mixed solution of water-glycol will be thicker, heavier, than the water alone was. Thus, to achieve the same heat exchange inside the heat exchanger, requires more surface area or a larger heat exchanger. American Chillers heat exchangers are engineered for full rated capacity with the use of 30% glycol solutions. Glycols are heavy, syrup like fluids at full concentration, and become thinner when mixed with water. All Heat exchangers experience a capacity loss when the fluid is a higher specific gravity than water.
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