Paratherm NF Heat Transfer Fluid

CPI Fluid Engineering



Paratherm NF is an extreme purity food-grade heat transfer fluid engineered for high performance in closed-loop liquid phase heating systems up to 630°F (357°C). Designed for extended service in demanding applications, Paratherm NF is the premiere heat transfer fluid for the food processing industry with premium NSF HT-1 registration and Kosher & Halal Certificatoin too. It offers best-in-class thermal stability and has a non-fouling, ultra-pure formulation.

Paratherm NF Heat Transfer Fluid is engineered to optimize the most critical properties of a heat transfer fluid. Its ultra-pure formulation resists fouling to a significant degree vs. competitive food-grade fluids and has unrivaled thermal stability vs. competitive food-grade fluids. Its high-density and low viscosity enable best-in class thermal efficiency, exceptional low temperature pumpability and rapid start-up due to low viscosity index.

Oil Store stocks Paratherm NF Heat Transfer Fluid in both 5USG (18.9L) pails and 55USG (208L) barrels here in the UK ready for next day delivery nationwide.

Application Industries

Alternative Energy & Emerging Sciences
Asphalt Processing & Storage
Biofuel Processing
Chemical Processing
Engineered Wood & Building Materials
Extraction Sciences
Food & Beverage Processing
Industrial Drying Processes
Oil & Gas Processing
Plastics, Polymers & Textiles

Operating Range for Paratherm NF


Minimum Startup Temperature (300cSt)

Maximum Operating Temperature

24°F / -4°C

630°F / 332°C

Resources & Documents


Engineering Bulletin


View the technical data information for Paratherm NF Heat Transfer Fluid

View the Material Safety Data Sheet for Paratherm NF Heat Transfer Fluid


Case Study

Read a case study for Paratherm NF Heat Transfer Fluid

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Extending Fluid Lifetime
When Paratherm fluids are used as recommended they can provide many years of reliable service. Systems using Paratherm fluids should be designed and installed by qualified engineers and should be maintained as any other critical production asset. Fluid oxidation is the leading cause of the most serious maintenance issues associated with closed-loop heat transfer systems– including cold spots, heater coking, plugged pressure sensors and ultimately fluid gelling. Paratherm recommends installation of a nitrogen blanket on the expansion tank to prevent oxidation of the fluid. All systems may benefit from side-stream filtration to promote long-term fluid and system reliability.
Fluid Analysis Services
Paratherm offers a comprehensive fluid monitoring service to help keep systems running at their best. Their state-of-the-art laboratory is certified to ISO 9001:2015 and well-equipped to run all critical tests. Annual testing is recommended and can identify system issues before they become catastrophic. The fluid in new systems should be tested within 9 to 12 months of start-up. New fluid in existing systems should be tested within the first month of operation to establish a base line for future testing, and annually thereafter.
Replacing Fluid
Replacement should be preceded by analysis of the fluid to determine if cleaning or flushing of the system is recommended prior to introducing new heat transfer fluid. Newly commissioned systems typically do not require cleaning before filling. Paratherm recommends installation of a Y-strainer with a minimum 60-mesh screen up-stream of the pump to catch any residues from manufacturing and construction of system components.
Fluid Storage
Barrels and pails should be stored indoors to prevent environmental contamination. If sealed barrels must be left outdoors, provisions should be made to prevent water from pooling on their tops. While unopened pails are considered weatherproof, Paratherm recommends they not be stacked when stored outdoors. If the fluid is below its minimum pumpable temperature, the containers may be moved indoors to warm up before charging into the system. Refer to the product safety data sheet (SDS) for additional handling and storage recommendations.

Speak to us

If you have a big system requirement, Paratherm can fill high-volume systems with Paratherm NF from bulk tanker. Get in touch with the Oil-Store team to request a bulk quotation.

Additional information

Weight N/A
Pack Size

5 US Gallon (18.9L), 55 US Gallon (208.2L), 264 US Gallon (1000L)