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The last few years have been challenging and unpredictable; however, heat transfer and thermal equipment have been consistent performers amidst the volatility. As companies navigate the difficult economy and conduct maintenance on their thermal heating systems, it quickly becomes apparent that some system components need to be replaced, such as O-rings and seals, which can degrade and shrink, leading to undesired leakage.
This type of issue can occur when a high-temperature heating system is accustomed to running continuously and the components are subjected to an abrupt cooldown period, which has happened since the pandemic. When restarting thermal heating systems, it is critical to ensure there is enough safety stock of DOWTHERM™ heat transfer fluid on hand for start-up to fulfill system requirements.
There is no shelf life for DOWTHERM™ synthetic heat transfer fluids, but the risk of running out is highly probable if a pipe or seal unexpectedly leaks. Maintaining an adequate backup supply of heat transfer fluids and chemicals for your applications and systems can prevent shutdowns or material replacement. In addition, DOWTHERM™ synthetic heat transfer fluids are formulated to have high compatibility and operate well in extreme temperature applications and single-fluid process heating and cooling. Dow has formulated its synthetic DOWTHERM™ O-ring chemical fluids to have excellent thermal stability, providing a long-standing and higher-performing heat transfer fluid. All grades of this have a vapor pressure lower than standard steam, which can translate into more efficient thermal transfer and system flexibility.
Fluorosilicone |
-100°F to 350°F |
Perfluoro Rubber |
5°F to 500°F |
Tetrafluoroethylene-Propylene (AFLAS®) |
23°F to 338°F |
Expanded PTFE (Gore-Tex®) |
-450°F to 550°F |
Graphite (Grafoil®) |
-400°F to 1600°F |
Fluorocarbon Rubber (Viton®) |
-20°F to 450°F |
PHONE 425.372.9328
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