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MultiTherm® OG-1

1 of 4 products in this brand
MultiTherm® OG-1 is a hydrocracked base oil combined with the latest proprietary oxidation inhibitor/stabilizer. MultiTherm OG-1® was designed to meet the rising and demanding requirements of liquid phase open-loop heat transfer fluid system applications.

Product Type: Heat Transfer Fluid

Features: Cost Effective, Good Thermal Stability, High Flash Point, High Temperature Performance, Oxidation Resistant, Thermally Conductive, Very Low Vapor Pressure

Chemical Family: Alkanes, Mineral Oils

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Knowde Enhanced TDS

Identification & Functionality

Base Oil Type
Chemical Family

Features & Benefits

Benefits of MultiTherm OG-1®
  • System heat transfer characteristics last longer due to improved oxidation resistance.
  • Excellent Thermal Conductivity at high temperatures.
  • Thermal Stability from improved oxidation resistance reduces efficiency robbing components such as coke deposits and particulate build-up.
  • Longer oil life means less maintenance, process downtime, less oil disposal, and reduced environmental waste.
Product Highlights

Oxidation
The most common form of contamination is oxidation of the heat transfer fluid. Excessive oxidation can create solids and high viscosity compounds that impair system effectiveness. Oxidation and fluid boil-off are major problems when using organic heat transfer fluids in an open-loop systems. Oxidation produces organic acids, which can polymerize and create deposits.

Open Systems

  • MultiTherm OG-1® is designed for use in liquid-phase heat transfer fluid systems, which are “open” to the atmosphere or there is a possibility that the heat transfer fluid in the expansion tank will come in contact with air. To reduce the oxidation process in an open-loop system,
  • MultiTherm OG-1® is enhanced with special oxidation inhibitors to prevent this oxidative degradation and deposits.
  • MultiTherm OG-1® heat transfer fluid is designed for a maximum film temperature of 600°F / 316°C and a maximum system bulk temperature of 550°F / 290°C.

Low Vapor Pressure
MultiTherm OG-1® heat transfer fluid has a very low vapor pressure. This is important because fluid boil-off is an issue in open-loop systems. The rate of boil-off of a heat transfer fluid is dependent on the fluid vapor pressure. The higher the vapor pressure, the greater the rate of fluid boil-off.

High Flash Point

  • MultiTherm OG-1® offers the benefit of having a high flash point of 455°F / 235°C. It also offers the extra benefit of having a higher Fire Point then most other heat transfer fluids. MultiTherm OG-1® has a Fire Point of 520°F / 271°C.

Applications & Uses

Markets

Properties

Appearance
Clear, Liquid, Colorless
Physical Properties
ValueUnitsTest Method / Conditions
Pour Point-42.0°CASTM D97
Density (15°C)0.8624g/ml-
Fire Point235.0°CASTM D92
Fire Point271.0°CASTM D92
Autoignition Temperature357.0°C-
Atmospheric Boiling Point (10%)373.0°CASTM D1160
Film Temperaturemax. 316°C-
Recommended Bulk Temperaturemax. 290°C-
Molecular Weight394.0--
Neutralization Value0.0mg KOH/gm-
Pumpable, Temperature (2000cP)-20.0°C-
Heat of Vaporization (316°C)977.0kJ/kg-
Heat of Combustion43.9MJ/kg-
Coefficient of Thermal Expansion0.00102°C
Specific Gravity (38°C)0.852--
Viscosity (38°C)42.0cSt-
Specific Heat (38°C)0.476Btu/(lb-°F)-
Thermal Conductivity (38°C)0.079Btu/(h-ft-°F)-
Chemical TypeWhite Mineral Oil
Physical Properties
Temperature Specific Gravity Viscosity Specific Heat Thermal Conductivity Vapor Pressure
°C cSt Btu/(lb-°F) Btu/(h-ft-°F) mm Hg
-18 0.883 2742 0.418 0.0818
-6.7 0.881 639 0.42 0.0815
10 0.869 229 0.456 0.0794
38 0.852 42 0.476 0.079
65.6 0.836 16.3 0.49 0.0787
93 0.821 7.2 0.514 0.0783 0.0031
121.1 0.805 4.3 0.536 0.0779 0.01472
148.8 0.791 2.8 0.562 0.0769 0.18
176.7 0.776 2 0.587 0.0763 0.85
204.4 0.762 1.5 0.605 0.0757 3.1
232.2 0.747 1.2 0.631 0.0753 6.42
260 0.733 0.93 0.659 0.075 40.5
287.8 0.721 0.83 0.684 0.0747 70
316 0.709 0.7 0.7 0.074 140

Temperature Density Viscosity Specific Heat Thermal Conductivity Vapor Pressure
°C g/cc m2/s cSt J/(kg-°K) W/(m-°K) mm Hg
-20 0.884 3030 1742 0.1416
-10 0.879 1734 1777 0.1412
0 0.872 432 1813 0.1388
10 0.868 229 1861 0.1381
20 0.861 110 1909 0.1374
40 0.85 33.5 1993 0.1367
60 0.839 18.6 2010 0.1365
80 0.827 10.3 2031 0.1364 0.0002
100 0.816 5.6 2102 0.1357 0.00096
120 0.805 4.4 2177 0.1353 0.00415
140 0.794 3.2 2248 0.1348 0.01176
160 0.783 2.4 2324 0.1334 0.065
180 0.773 1.9 2395 0.1327 0.032
200 0.763 1.6 2470 0.1319 0.96
220 0.752 1.3 2571 0.1305 4.5
240 0.742 1.14 2688 0.1302 15
260 0.732 0.93 2759 0.1298 40.6
280 0.722 0.868 2834 0.1295 54
300 0.713 0.77 2906 0.1289 95
316 0.708 0.7 2931 0.1281 140