SERVO THERM S SPECIAL

Heat transfer phenomena is one of the most important and requisite step in industrial processing for indirect heating. Heat transfer media are materials used in industrial processes to transfer heat. In engineering and particularly in chemical and process engineering large quantity of heat has to be transferred at elevated operating temperature.

Thermal fluid heating is a type of indirect heating in which a liquid phase heat transfer medium is heated and circulated to one or more heat energy users within a closed loop system. In these cases, high boiling heat transfer media are recommended. HTF are thermally stable fluids used for indirect heating and cooling from -100°C to 400°C as circulatory media in hot oil systems.

Applications:

Servotherm S Special is suitable for all types of heat transfer applications. This product
finds extensive application in textile, pharmaceuticals, chemical and processing
industries.

Key Benefits:

Servotherm S Special offers the following advantages over conventional mineral fluids:

  • Resist deterioration at the recommended temperatures to assure long fluid life and
    clean systems.
  • Have low vapor pressures at operating temperatures to permit operation at
    atmospheric pressure.
  • Possess good heat transfer characteristics.
  • Low pour point and moderate viscosity with decreases the pumping losses and the
    power required for circulation.
  • Excellent thermal and oxidation stability
  • Low volatility
  • Very low carbonaceous deposits and very good solvency

S.No. Properties Method Servotherm-S Special
1. Appearance Visual Clear & Bright
2. Kinematic viscosity @ 40°C, cSt D-445 18.99
3. Kinematic viscosity @ 100°C, cSt D-445 3.88
4. Viscosity Index D-2270 81
5. Density @ 15°C D-4052 0.8652
6. Total acid no. mgKOH/gm D-974 0.03
7. Flash point, °C D-92 208
8. Fire point, °C D-92 228
9. Autoignition Temperature, °C E-659 378
10. Pour point, °C D-97 -57
11. Copper Corrosion D-130 1a
12. Boiling range, °C

IBP

10%

90%

FBP

D-86  

310

345

393

400

13. Ash. % D-482 0.003
14. CCR, % D-189 nil
15. Max. Film Temp. °C 345
16. Coefficient of Thermal Expansion 0.00039
17. Vapour Pressure, mm

50 °C

100

150

200

250

 

0.32×10-3

0.02

0.58

7

45