CASTROL Perfecto HT 2
Heat Transfer Oils
Low-temperature heat transfer fluid. Perfecto HT 2 is a high-quality mineral oil combining low vapour pressure and high levels of thermal stability, specific heat and thermal conductivity with exceptional low temperature fluidity.
Perfecto HT 2 is recommended primarily for non-pressurized closed liquid phase heating systems that incorporate both heating and cooling branches. Eg: where an exothermic or heat releasing reaction takes place.
The low temperature fluidity ensures that adequate circulation occurs in the coolest parts of the circuit. The maximum recommended bulk fluid temperature for Perfecto HT 2 is 250 °C, and the fluid also operates effectively in cooling systems down to bulk temperatures of 30 °C.
Perfecto HT 2, because of its low viscosity and freedom from additives, can also be used as the sealing medium in oil film barrier seals on rotating equipment such as gas compressors and main oil line pumps. Perfecto HT 2 has excellent low temperature properties and high temperature stability in order to give good performance over a wide range of conditions and to maximise seal life.
Typical characteristics:
Viscosity at 40 °C (104 °F): 8.2 mm2/sec
Viscosity at 100 °C (212 °F):2.2 mm2/sec
Neutralization value: <0.05 mg KOH/g
Coefficient of thermal expansion: 0.00077 per °C
Specific heat at 0 °C (32 °F): 0.45 kcal/Kg °C
Specific heat at 250 °C (482 °F): 0.65 kcal/Kg °C
Thermal conductivity at 0 °C (32 °F): 0.118 Wt/m °C
Thermal conductivity at 250 °C (482 °F): 0.102 Wt/m °C
Vapour pressure at 245 °C (473 °F): 10 x103 Pa
Flash point, closed cup method: 140 °C (284 °F)
Flash point, open cup method: 152 °C (306 °F)
Autogenous-ignition temperature: 310 °C (590 °F)
Pour point: -39 °C (-38 °F)
CASTROL Perfecto HT 2 was previously called BP Transcal LT. Its name was changed in 2015.
Perfecto HT 2 is recommended primarily for non-pressurized closed liquid phase heating systems that incorporate both heating and cooling branches. Eg: where an exothermic or heat releasing reaction takes place.
The low temperature fluidity ensures that adequate circulation occurs in the coolest parts of the circuit. The maximum recommended bulk fluid temperature for Perfecto HT 2 is 250 °C, and the fluid also operates effectively in cooling systems down to bulk temperatures of 30 °C.
Perfecto HT 2, because of its low viscosity and freedom from additives, can also be used as the sealing medium in oil film barrier seals on rotating equipment such as gas compressors and main oil line pumps. Perfecto HT 2 has excellent low temperature properties and high temperature stability in order to give good performance over a wide range of conditions and to maximise seal life.
Typical characteristics:
Viscosity at 40 °C (104 °F): 8.2 mm2/sec
Viscosity at 100 °C (212 °F):2.2 mm2/sec
Neutralization value: <0.05 mg KOH/g
Coefficient of thermal expansion: 0.00077 per °C
Specific heat at 0 °C (32 °F): 0.45 kcal/Kg °C
Specific heat at 250 °C (482 °F): 0.65 kcal/Kg °C
Thermal conductivity at 0 °C (32 °F): 0.118 Wt/m °C
Thermal conductivity at 250 °C (482 °F): 0.102 Wt/m °C
Vapour pressure at 245 °C (473 °F): 10 x103 Pa
Flash point, closed cup method: 140 °C (284 °F)
Flash point, open cup method: 152 °C (306 °F)
Autogenous-ignition temperature: 310 °C (590 °F)
Pour point: -39 °C (-38 °F)
CASTROL Perfecto HT 2 was previously called BP Transcal LT. Its name was changed in 2015.