Heat Transfer Oil Food Grade from MultiTherm

MultiTherm PG-1 Physical Characteristics Chemical Type White Mineral Oil Appearance Bright, Clear, Colorless Odor None Pour Point, ASTM D97 -40°F (-40°C) Density @ 60°F/16°C 7.30 lb/gal Flash Point, COC, ASTM D92 340°F (171°C) Fire Point, COC, ASTM D92 385°F (196°C) Atmospheric Boiling Point (10%) ASTM D1160 657°F (349°C) Average Molecular Weight 350 Maximum Film Temperature 640°F (338°C) Maximum Recommended Operating Temperature 600°F (316°C) Pumpable, Centrifugal @ 2000 centipoise -13°F (-25°C) Heat of Vaporization @ 600°F/316°C 92 Btu/lb (214 kJ/kg) Heat of Combustion 19,660 Btu/lb (45.7 MJ/kg) Coefficient of Thermal Expansion 0.00035/°F (0.00063/°C)

MultiTherm PG-1® heat transfer oil is a high quality food grade mineral oil for use in closed loop, liquid phase heating and cooling systems to 600°F. MultiTherm PG-1 has been successfully used in over thirty-five different industries. In the Chemical Processing industry, it is used for temperature control of batch reactors, in heat recovery from process streams and exhaust gases and in large central systems where multiple heat users are involved. In the Food Processing industry, MultiTherm PG-1 heat transfer oilis used in indirect heating loops for deep frying and baking. In the Plastics Industry, it provides accurate temperature control for platens, molds, extruders and laminating rolls. For Die Casting, MultiTherm PG-1 heat transfer oilprovides low maintenance control of die temperature. The unique formula of MultiTherm PG-1 food grade oil assures heat transfer efficiency without the potential problems of many conventional fluids, such as fouling of heat transfer surfaces. FDA Certified Non-Toxic, NSR Registered (No. 123698) category code H1, P1 NSF HT1 Approved for Incidental Contact MultiTherm PG-1 heat transfer oil  meets the specifications of 21CFR172.878 which covers the use of White Mineral Oils in Food according to the limits and conditions of the regulation. NSF Registration supersedes the USDA authorization program.

EFFICIENT

Lower Equipment Costs

The energy required to achieve a process heat load can be influenced by the physical properties of the fluid (density, viscosity, thermal conductivity, specific heat). MultiTherm PG-1 heat transfer oil properties result in more efficient use of energy than many other fluids. Low pressure drop reduces pump horsepower requirement. Heater outlet temperature can be reduced since MultiTherm PG-1 high heat transfer film coefficient allows lower approach temperature.

Fluid properties of this food grade mineral oil can also affect equipment costs. Many conventional fluids have high viscosity at ambient temperatures and can require oversized pumps and/or heat tracing equipment to facilitate cold start-ups. MultiTherm PG-1 heat transfer oil is pumpable to -13°F with a centrifugal pump, so start-up problems are minimal. Its high heat transfer film coefficient can reduce the heat exchanger area required for a given heat load. MultiTherm PG-1 also has low vapor pressure which can allow specification of less expensive, low pressure expansion tanks, piping and process equipment.

NON-FOULING

Long Term Temperature Control
All organic heat transfer fluids undergo thermal degradation over time. Conventional synthetic fluids or low quality oils will form soft carbon material (sludge) that eventually coats all system surfaces, and can form a hard coating. Because the coating acts as an insulator, heat transfer rates are reduced resulting in longer heat up time, lower production rates, changes in control response and, in extreme cases, burnout of heater tubes or electrical elements.

With non-fouling MultiTherm PG-1 food grade oil, these problems disappear. As it degrades, it produces small carbon particles that do not stick to system surfaces, but remain suspended and are easily drained or filtered out. Since heat transfer surfaces remain clean, system performance remains constant.

Lower Maintenance Costs
System downtime due to mechanical seal failure, sludge build-up or heater tube burnout can result in lost production time as well as extra direct maintenance cost. MultiTherm PG-1 can help reduce these costs. It has lubricating properties that reduce wear on mechanical seals and packing glands. The fluid is chemically inert and will not attack seals or gaskets. System cleaning is reduced since any carbon formed can be filtered or drained from the system. By eliminating maintenance problems, MultiTherm PG-1 helps reduce the costs.