The result is PURITY FG Heat Transfer Fluid, a food grade fluid that provides high thermal efficiency in systems operating up to 326°C (620°F). PURITY FG Heat Transfer Fluid's breakthrough chemistry can assist in extending fluid life longer than leading competitive fluids, and help lower operating costs by reducing the frequency of fluid change-outs.
Applications
PURITY FG Heat Transfer Fluid may also be used in heating baths where a virtually odourless, nontoxic* fluid is required for worker health and
PURITY FG Heat Transfer Fluid’s outstanding resistance to oxidative breakdown is also beneficial in food related manufacturing operations where exposure to air can not be avoided, and oxidation is the most likely form of fluid degradation. Common applications include the manufacture of plastic bottles, films and containers for the packaging of food products.
In Ampoule studies, conducted at 316°C (600°F), PURITY FG Heat Transfer Fluid remained thermally stable and maintained its autoignition temperature throughout the 56 day test; three times longer than two leading specialty fluids and more than 20% longer than a major oil company’s synthetic fluid:
GMP (Good Manufacturing Practice) plans:
- All fluid components comply with FDA 21 CFR 178.3570 “Lubricants with incidental food contact”
Typical Properties
THERMAL DATA | TEMPERATURE | |||
15°C (60°F) | 38°C (100°F) | 260°C (500°F) | 316°C (600°F) | |
Density, kg/L (lb./ft3) | 0.868 (54.2) | 0.854 (53.3) | 0.716 (44.7) | 0.681 (42.5) |
Thermal conductivity, W/m K (BTU/hr. °FFt) | 0.138 (0.080) | 0.136 (0.079) | 0.124 (0.072) | 0.121 (0.070) |
Heat capacity, kJ/kg K (BTU/lb. °F) | 1.87 (0.45) | 1.94 (0.46) | 2.69 (0.64) | 2.88 (0.69) |
Vapour pressure, kPa (psia) | 0.00 (0.00) | 3.01 (0.44) | 14.28 (2.05) |
TYPICAL PERFORMANCE DATA | TEST METHOD | RESULT |
Colour | ASTM D1500 | <0.5 |
Pour point, °C (°F) | ASTM D5950 | -18/0 |
Flash point, COC, °C (°F) | ASTM D92 | 237/459 |
Fire point, °C (°F) | ASTM D92 | 249/480 |
Autoignition temperature, °C (°F) | ASTM E659 | 354/669 |
Viscosity, cSt at 40°C (104°F) cSt at 100°C (212°F) |
ASTM D445 | 37.1/191 5.9/45.6 |
Neutralization value, TAN, mg KOH/g | ASTM D664 | 0.9 |
Coefficient of thermal expansion, %/°C (%/°F) | 0.0915 (0.0508) | |
Distillation range, °C (°F) 10% 50% 90% |
ASTM D2887 | 383 (721) 431 (808) 478 (892) |
Although PURITY FG Heat Transfer Fluid is highly resistant to oxidative breakdown, excessive air and water contamination can reduce thermal efficiency and shorten fluid life. Where practical, Petro-Canada recommends inert gas blanketing of a system’s expansion tank to guard against exposure to air and water and the need to change-out the fluid prematurely. While PURITY FG Heat Transfer Fluid has been formulated for high resistance to contamination from air and water, contamination with process chemicals or deteriorated residual fluids can shorten fluid life. To maximize system efficiency and fluid life, Petro-Canada highly recommends system flushing prior to recharging with PURITY FG Heat Transfer Fluid.
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