DURATHERM S
A silicone based heat transfer fluid that is ideally suited for high oxidation applications or completely exposed systems. Duratherm S is virtually impervious to oxidation at temperatures under 204°C (400°F) and offers superior protection from fluid degradation. Duratherm S is best suited for applications not prone to contamination or leaking.
- 316°C (600°F) maximum operating temperature
- Pumpable down to -50°C (-46°F)
- Very strong resistance to oxidation up to 204°C (400°F)
- Recommended for use in fully exposed systems like open baths
- Highly resistant to fouling for an extremely long service life
- Non-corrosive and non-toxic thermal fluid for added workplace safety
TEMPERATURE RATINGS
|
| Max Bulk/Use Temp |
316°C |
| Max Film Temp. |
366°C |
| Pour Point ASTM D97
|
-66°C |
SAFETY DATA
|
| Flash Point ASTM D92
|
324°C |
| Fire Point ASTM D92
|
336°C |
| Autoignition ASTM E-659-78
|
437°C |
THERMAL PROPERTIES
|
| Thermal Expansion Coefficient |
0.099 %/°C |
| Thermal Conductivity |
W/m·K |
| 38°C |
0.133 |
| 204°C |
0.109 |
| 204°C |
0.109 |
| 260°C |
0.100 |
| 288°C |
0.097 |
| 316°C |
0.093 |
| Heat Capacity |
kJ/kg·K |
| 38°C |
1.717 |
| 204°C |
2.034 |
| 204°C |
2.035 |
| 260°C |
2.144 |
| 288°C |
2.194 |
| 316°C |
2.248 |
PHYSICAL PROPERTIES
|
| Viscosity ASTM D445
|
cSt |
| -18°C |
113.08 |
| 40°C |
36.14 |
| 100°C |
16.57 |
| 260°C |
5.19 |
| 288°C |
4.54 |
| 316°C |
4.03 |
| Density ASTM D1298
|
kg/l |
| 38°C |
0.95 |
| 204°C |
0.81 |
| 204°C |
0.81 |
| 260°C |
0.77 |
| 288°C |
0.74 |
| 316°C |
0.72 |
| Vapor Pressure ASTM D2879
|
kPa |
| 38°C |
0.00 |
| 204°C |
0.14 |
| 204°C |
0.14 |
| 260°C |
1.79 |
| 288°C |
3.52 |
| 316°C |
6.83 |
| Distillation Range ASTM D2887
|
| 10% |
494°C |
| 90% |
679°C |
Note: The values quoted in the table above are typical of normal production.
They do not constitute a specification.