| Maximum Bulk/Use Temp. | 338°C | 640°F |
| Maximum Film Temp. | 360°C | 680°F |
| Pour Point ASTM D97 | -9°C | 15°F |
RELATHERM HT-1 High Temperature Heat Transfer Fluid
Engineered thermal fluid designed for high temperature applications where a high flash point is beneficial for process safety management. It can serve as a non-toxic and non-hazardous alternative to popular aromatic heat transfer fluids
PRODUCT SUMMARY
- Highest Flash Point in the industry: 277ºC / 531°F
- Maximum use temperature: 340ºC / 644°F
- Sophisticated oxidation protection
- Non-toxic and non-hazardous thermal fluid
- Top-off compatible with mineral-oil based thermal fluids. No flush required.
Technical Documents
Thermal Properties
| Thermal Expansion Coefficient | 0.1011 %/°C | 0.0562 %/°F |
| Thermal Conductivity | W/m K | BTU/hr F ft |
| 38°C / 100°F | 0.149 | 0.086 |
| 260°C / 500°F | 0.145 | 0.084 |
| 316°C / 600°F | 0.144 | 0.083 |
| Heat Capacity | kJ/kg K | BTU/lb F |
| 38°C / 100°F | 1.874 | 0.448 |
| 260°C / 500°F | 2.266 | 0.542 |
| 316°C / 600°F | 2.367 | 0.565 |
Safety Data
| Flash Point ASTM D92 | 276°C | 530°F |
| Fire Point ASTM D92 | 305°C | 582°F |
| Autoignition ASTM E-659-78 | 393°C | 740°F |
Physical Properties
| Viscosity ASTM D445 | ||
| cSt at 40°C / 104°F | 104.04 | |
| cSt at 100°C / 212°F | 12.45 | |
| cSt at 316°C / 600°F | 1.04 | |
| Density ASTM D1298 | kg/m3 | lb/ft3 |
| 38°C / 100°F | 858.98 | 53.63 |
| 260°C / 500°F | 777.77 | 48.55 |
| 316°C / 600°F | 757.28 | 47.29 |
| Vapor Pressure ASTM D2879 | kPa | psi |
| 38°C / 100°F | 0.00 | 0.00 |
| 260°C / 500°F | 1.47 | 0.22 |
| 316°C / 600°F | 12.29 | 1.74 |
| Distillation Range ASTM D2887 | 10% | 446°C (834°F) |
| 90% | 554°C (1030°F) | |
| Average Molecular Weight | 399 |
Additional Information
WHY RELATHERM HT-1?
Relatherm HT-1 is the result of extensive thermofluid research. It is manufactured from a blend of high purity base fluids and advanced additives that provide an extended fluid life and trouble-free operation. These include a sophisticated two-stage anti-oxidation additive package, metal deactivators, rust inhibitors, seal/gasket extenders and other proprietary agents. Therefore, in comparison with other industry fluids, Relatherm HT-1 provides for a safer, cleaner, and thermally stable equipment operation.
EXTENDED FLUID LIFE
Relatherm HT-1 is well known for it extended service life, even in oxidation-prone systems. Its superior additive technology extends its usability under operating conditions at which other industry fluids would typically degrade.
MAXIMUM OXIDATION PROTECTION
Relatherm HT-1 greatly minimizes sludge formation in heat transfer systems and the fouling of heat transfer surfaces by virtue of its robust Extended Life Additive Technology. It contains highly effective oxidation mitigants, making it the best choice in many industrial applications such as plastic processing equipment, chemical reactors, solar power plants, die casting machines, tank heating and many more.
For these systems, Relatherm HT-1 provides lower maintenance costs, longer uptime and less frequent fluid changeouts.
HEALTH, SAFETY & THE ENVIRONMENT
Relatherm HT-1 is non-toxic and non-hazardous. It is environmentally friendly and poses no adverse effect to personnel safety. There are no special handling procedures for fluid disposal. After its long-service life, it can be disposed with other waste oils/lubricants in accordance with applicable statutes.
COMPREHENSIVE PRODUCT PORTFOLIO
If Relatherm HT-1 does not meet your application requirements, there is a very good chance that we will be able to offer a better suited solution from our comprehensive portfolio of thermal fluids and system cleaners. Contact us to discuss your application with a Thermal Fluids Expert.