Food Grade Thermal Fluid

Globaltherm® NF is a non-fouling, non-toxic, high performance semi synthetic heat transfer fluid specially developed for use in food processing plants and industrial heat transfer.

Made from severely hydro treated synthesised hydrocarbon base stocks, Globaltherm^® Non-Fouling has outstanding thermal and oxidation stability allowing operation at high temperatures for extended periods. This thermal oil is non-hazardous, non-toxic, water white and odourless. The thermal fluid also has high flash/fire points and provides extra resistance to sludging.

Globaltherm^® C1 FG dual action cleaning and flushing fluid is specially formulated for use in heat transfer systems at pharmaceutical, food and drink processing plants in fact, in any application where thermal fluid can potentially come into contact with a product manufactured for human ingestion. This fluid scours away harmful contaminants, such as old oxidised residual fluids, carbon deposits, loose debris, water and volatile light ends. Globaltherm^® C1 FG effectively displaces and flushes out waste in one process, leaving a clean and safe operating system that is ready to accept a new charge of heat transfer fluid.

Recalls of food and beverage products due to contamination concerns have risen significantly over the last decade.

If food and beverage manufacturers use a standard heat transfer fluid and there is incidental contact with the product, the whole batch will have to be scrapped. It can be costly to dispose of products and can damage a company’s reputation if the product has to be recalled.

Manufacturers should consider how they can improve customer safety by selecting the correct heat transfer fluid for a food processing facility. In any environment where a thermal fluid may come into contact with a consumable product, such as food or drinks, manufacturers should look at NSF HT1 certified food-grade fluids.

If manufacturers use a food grade thermal fluid, any incidental contact with the product or a preparation surface will not result in contamination and disposal of valuable products.

Any manufacturer that has a thermal oil system must adhere to standards and regulations. This is particularly true for food manufacturers because they must adhere to food-grade standards (in the UK this would be British Retail Consortium (BRC) standards) in order to sell their products to supermarkets.

The Dangerous Substances and Explosive Atmospheres Regulations (DSEAR) and the Explosive Atmosphere Directive (ATEX 137), or UKEX in the UK, outline the mandatory requirements for minimising safety risks and protecting workers from fire and the explosion of flammable materials present at the facility.

The DSEAR and ATEX (or UKEX) regulations apply to every industry that uses heat transfer. Food and beverage manufacturers must also adhere to regulations specific to their application.

Heat transfer oils that are specifically manufactured for food processing must be fully H1 or HT1 certified as a food grade thermal fluid by the US Food and Drug Administration (FDA) and the NSF International.

The distribution of food grade thermal oils is highly regulated in Europe and companies must comply with Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) and CLP regulations. These refer to the classification labelling and packaging of substances.

High quality food grade fluid is non-hazardous, non-toxic and odourless, which means it requires no special handling and is not considered a controlled substance under United States Occupational Safety & Health Administration (OSHA), Canadian WHMIS Workplace Hazardous Materials Information System (WHMIS) or other workplace regulations.

Food manufacturers should invest in food grade thermal oils as they have a strong resistance to fouling, slowing their degradation.

All HTFs degrade over time because they have to operate at high temperatures for extended periods of time. At these temperatures, the bonds that exist between hydrocarbon chains will start to break and form shorter (commonly referred to as ‘light-ends’) and longer chained hydrocarbons (‘heavy-ends’).

The build-up of light-end components is a potential fire risk because they decrease the ignition temperature of the HTF. The accumulation of heavy-ends results in the formation of sticky carbon deposits or sludge and can be monitored by analysing the carbon residue in a system.

If a system is not properly maintained or checked regularly it will impact the product, for example a food product may be cooked inconsistently or pharmaceutical product may not blend properly. At this stage, the fluid has degraded, must be removed and flushed from the system and replaced, causing expensive downtime and additional CapEx costs, both of which could be avoided with a proactive and preventative maintenance programme.

You can extend the life of your food-grade fluid with help from Global Heat Transfer’s preventative maintenance programme, Thermocare. Taking samples every quarter allows you to spot any changes in the fluid and react, before it impacts the product.

To get a representative sample, manufacturers must take a hot, closed sample. This is the only way to understand the condition of the fluid when it is moving around the system.

Application

A highly efficient, non-toxic, food grade heat transfer fluid that is safe for incidental food contact in food processing plants and pharmaceutical facilities. Globaltherm FG is also Kosher and Halal certified.

About Globaltherm® FG

Made from severely hydro-treated base stocks, Globaltherm^® FG thermal fluid has outstanding thermal oxidation stability allowing operation at high temperatures for extended periods. It is non-hazardous, non-toxic, water white and odourless.

Highly efficient non-fouling NSF HT-1, FDA and USDA-Certified food grade heat transfer fluid is specified in a broad variety of industrial process applications in addition to food processing.

Globaltherm FG is also Kosher certified and Halal certified.

Globaltherm^® FG thermal fluid is a high efficiency heat transfer fluid specifically developed for non-pressurised, indirectly heated, liquid phase heat transfer systems found in food processing plants, pharmaceutical operations and other “food grade” applications that require bulk temperatures up to 326°C (619°F). FG is a mixture of exceptionally pure HT hydrocracked base oils.

 

• Globaltherm® FG thermal fluid is non-hazardous, non-toxic and odourless which means it requires no special handling and is not considered a “controlled substance” under United States OSHA, Canadian WHMIS or other work place regulations.

• Globaltherm® FG is NSF HT-1 Accredited

• The fluid is USDA CFR Title 21 178.3570 Compliant

• The fluid is also USFDA21 CR Compliant

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Parameter	Unit	Code (ASTM / ISO)	Result
Operating Range	°C (°F)	N/A	-20 to 326 (-4 to 619)
Appearance	N/A	N/A	Colourless transparent liquid with no odour.
Density @ 25°C	kg/m³	ASTM D4052	881
Kin. Viscosity 40°C	mm²/s (cSt)	ASTM D445	29.8
Kin. Viscosity 100°C	mm²/s (cSt)	ASTM D445	5.2
Flash Point PMC	°C	ASTM D93	210
Flash Point COC	°C	ASTM D92	216
Coefficient of Thermal Expansion	°C	NTR	0.00089/°C
Autoignition Point	°C	ASTM E659	350
Pour Point	°C	ISO 3016	-29
Neutralisation Nr (acid), TAN	mgKOH/g	ASTM D974	NTR
Maximum Bulk Temperature	°C	NTR	326
Maximum Film Temperature	°C	NTR	343
Boiling Point at 1013 mbar	°C	NTR	371
Average Molecular weight	NTR	NTR	350
Moisture Content	PPM	ASTM D6304	<100

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Application

Globaltherm® NF is a non-fouling, non-toxic, high performance semi synthetic heat transfer fluid specially developed for use in food processing plants and industrial heat transfer.

About Globaltherm® NF

Made from severely hydro treated synthesised hydrocarbon base stocks, Globaltherm^® Non-Fouling has outstanding thermal and oxidation stability allowing operation at high temperatures for extended periods. It is non-hazardous, non-toxic, water white and odourless.

This heat transfer fluid has high flash/fire points and provides extra resistance to sludging.

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Parameter	Unit	Code (ASTM / ISO)	Result
Operating Range	°C (°F)	N/A	-20 to 326 (-4 to 619)
Appearance	N/A	N/A	Colourless transparent liquid with no odour.
Density @ 25°C	Kg/m³	ASTM D4052	881
Kin. Viscosity 40°C	mm²/s (cSt)	ASTM D445	29.8
Kin. Viscosity 100°C	mm²/s (cSt)	ASTM D445	3.2
Flash Point PMC	°C	ASTM D93	210
Flash Point COC	°C	ASTM D92	216
Coefficient of Thermal Expansion	°C	NTR	0.00089/°C
Autoignition Point	°C	ASTM E659	350
Pour Point	°C	ISO 3016	-29
Neutralisation Nr (acid), TAN	mgKOH/g	ASTM D974	NTR
Maximum Bulk Temperature	°C	NTR	326
Maximum Film Temperature	°C	NTR	343
Boiling Point at 1013 mbar	°C	NTR	371
Average Molecular Weight	NTR	NTR	350
Moisture Content	PPM	ASTM D6304	<100

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Contact us for more information on high temperature thermal oils

We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

Call us on +44 (0)1785 760555 for more information

Application

• Maintain a safer system environment

• Flush and clean a system with Globaltherm C1FG to maximise performance and service life of new fluid

• Lower maintenance and operating costs

• Reduce downtime

 

 

Globaltherm^® C1 FG dual action cleaning and flushing fluid is specially formulated for use in heat transfer systems at pharmaceutical, food and drink processing plants in fact, in any application where thermal fluid can potentially come into contact with a product manufactured for human ingestion. This fluid scours away harmful contaminants, such as old oxidised residual fluids, carbon deposits, loose debris, water and volatile light ends.

Globaltherm^® C1 FG effectively displaces and flushes out waste in one process, leaving a clean and safe operating system that is ready to accept a new charge of heat transfer fluid.

Where can I find engineering support for cleaning a heat transfer system?

Our heat transfer system drain, flush and refill service can help return your heat transfer system to maximum efficiency. Our engineers can help by thoroughly draining the system and flushing out any carbon deposits. Our team can also help to remove and dispose of waste in accordance with legislation.

• Globaltherm® C1 FG system cleaner and flushing fluid is intended for use in a closed plant

• Globaltherm® C1 FG system cleaner and flushing fluid is recommended for the cleaning and flushing of heat transfer systems using heat transfer fluids in a temperature range from -20°C up to a maximum bulk temperature of 326°C. The maximum recommended film temperature is 343°C.

• Globaltherm® C1 FG system cleaner and flushing fluid is recommended for heat transfer systems operating under mild temperature conditions, where low temperature fluidity is required to ensure the correct flow rate during start-up.

• Globaltherm® C1 FG system cleaner and flushing fluid has low toxicity and is suitable for use in heat transfer systems of feed, food, and drink plants.

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