Description
Castrol PerfectoTM HT 5
Castrol PerfectoTM HT 5 is based on a solvent-refined, high viscosity index mineral oil speciallyselected for its high thermal and oxidation stability.
Application
- Perfecto HT 5 is primarily intended for use in closed heat transfer systems with bulk temperatures up to 300oC. It can also be used in open systems at much lower bulk oil temperatures.
- Perfecto HT 5, because of its solvency and high thermal stability serves as excellent Turbine Flushing oil.
Advantages
- Tightly controlled specification helps minimize deposits in heat exchangers in order to maintain heat transfer efficiency.
- High operating temperature capability in closed systems with temperatures up to 300oC permitted.
Additional information
Open Systems
The maximum operating temperature of an open system should not exceed 100oC except for very short periods. Open systems operating above 100oC would be subject to a special recommendation from Castrol’s Technical Service department.
System Conditioner – Castrol Cyltech 70
Cyltech 70 is classified as a heat transfer system conditioner which facilitates the removal of sludge and varnish deposits by providing a cleaning action. It is suitable for use in contaminated systems operating at temperatures below 315oC.
Typical treat rates vary between 1 to 5% depending on the condition of the system. This charge may be required to circulate a couple weeks to ensure total conditioning has occurred.
Consult Castrol’s Technical department for specific advice.
Additional information
Test | Method | Units | Perfecto HT 5 |
Density at 15°C | ASTM D4052 | g/ml | 0.868 |
Kinematic Viscosity at 40°C | ASTM D445 | mm²/s | 30.5 |
Kinematic Viscosity at 100°C | ASTM D445 | mm²/s | 5.28 |
Viscosity Index | ASTM D2270 | – | 106 |
Pour Point | ASTM D97 | °C | -9 |
Flash Point, PMC | ASTM D93 | °C | 210 |
Flash Point, COC | ASTM D92 | °C | 220 |
Fire Point | ASTM D92 | °C | 249 |
Colour | IP 196 | – | 2.0 |
Neutralisation Value | IP 1A | mgKOH/g | <0.05 |
Specific Heat at 15°C | – | kJ/kg°C | 1.86 |
Maximum Film Temperature | – | °C | >340 |
Thermal Conductivity at 15°C | ASTM D1160 | W/m°C | 0.133 |
Distillation Range | °C | ||
Initial Boiling Point | – | 343 | |
10% Distilled at | 390 | ||
90% Distilled at | 454 | ||
Thermal Expansion Co-efficient per °C at 15°C | – | 0.00077 |