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SAFE-T-THERM®
Propylene Glycol Heat Transfer Fluid
DESCRIPTION
SAFE-T-THERM® heat transfer fluid is an inhibited propylene glycol designed for use in hydronic systems. The inhibitor system is designed to protect metals commonly found in residential and commercial installations such as brass, copper, solder, steel, and cast iron. The SAFE-T-THERM® formula also includes an orange dye, for leak detection, and an antifoam to minimize foaming during service. The effectiveness of SAFE-T-THERM® heat transfer fluid in preventing corrosion has been proven both in use and in extensive laboratory testing. Using SAFE-T-THERM® in place of brine solutions or uninhibited glycol/water solutions lowers maintenance costs and improves heat transfer efficiency.
SAFE-T-THERM® heat transfer fluid has been formulated with ingredients which are generally recognized as safe (GRAS) by the FDA for use as an aqueous heat transfer medium for closed primary and secondary refrigeration and cooling systems. Components in our formulation conform to the requirements of 21 CFR 184.1666; 21 CFR 182.6285; 21 CFR 74.1705, 74.1706 & 74.2340 as applicable. A letter from the USDA can also be provided upon request.
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TYPICAL PROPERTIES |
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| Color | Orange | |
| Density, 60°F, lb/gal | 8.75 | |
| Flash Point, TOC, °F | 225° | |
| pH, 33.33 volume % | 9.50 | |
| Specific Gravity, 60/60°F | 1.054 | |
| Reserve Alkalinity | 12.0 | |
| Freeze Protection, °F | ||
| 20% aqueous solution | +18 | |
| 30% aqueous solution | +8 | |
| 40% aqueous solution | -8 | |
| 50% aqueous solution | -27 | |
APPLICATIONS
Line Heaters
SAFE-T-THERM® heat transfer fluid recommended for use in line
heaters. A line heater circulates a heated fluid around a pipe to raise
the temperature of the pipe contents in order to control reactions or ease
pumping operations.
Snow-Melting and Refrigeration Systems
SAFE-T-THERM® heat transfer fluid is recommended for
snow-melting systems for loading ramps, walkways, highways, and airfield
runways, and as a coolant in ice rinks and air conditioning systems
Combination Heating and Cooling Systems
SAFE-T-THERM® heat transfer fluid is recommended in
combination heating and cooling systems for large buildings. The excellent
corrosion protection afforded by SAFE-T-THERM® heat transfer
fluid prolongs the life of the piping in these systems. SAFE-T-THERM®
heat transfer fluid is also excellent for solar energy collection systems.
Thermal Energy Storage Systems
SAFE-T-THERM® heat transfer fluid is recommended for use in
all thermal energy storage systems. The specially formulated inhibitor
package is designed to protect common system metals from corrosion at
glycol concentrations as low as 20%. For glycol concentrations of less
than 20% ask for SAFE-T-THERM® HD.
Quality Statement
SAFE-T-THERM® heat transfer fluid will provide the user a minimum of ten years corrosion and freeze protection when used in conjunction with water of good quality, is the sole product in a properly designed, clean closed and leakfree system and recommended maintenance is implemented based upon testing by Houghton Chemical Corporation or a laboratory of our choosing once a year.
SAFE-T-THERM® is a registered trademark of Houghton Chemical
Corporation