Single Fluid Heating and Cooling – Non Aromatic – Non Aqueous
Paratherm LR™ heat transfer fluid is an aliphatic-hydrocarbon based heat transfer fluid designed for use in closed-loop, liquid phase heating and cooling systems up to 450°F in electric and steam heaters and down to a -58°F surface temperature in direct-expansion exchangers.
- Specialty chemical batch heating and cooling
- Pharmaceutical Production Equipment
- Secondary Coolant (“Brine”) Systems
- Replacing Silicone Oil? Simply drain and refill
Reduce Process Hazards when Processing Water-Sensitive Product
Many products undergo a violent exothermic reaction when exposed to water. Paratherm LR can be used safely for temperature control in these reactions because, unlike water/glycols, it’s not mixed with water. And because it contains no double bonds or bonded oxygen molecules, it’s extremely stable.
Wider Temperature Range than Glycols
Paratherm LR has higher heat-transfer coefficients than 50% ethylene-glycol and 50% propylene-glycol solutions below -22°F and -4°F respectively. And while glycol solutions have a maximum operating temperature of 320°F, Paratherm LR is completely stable up to it’s 450°F maximum operating temperature. Stability tests showed less than 3% degradation after 500 hours at 550°F.
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Drums should be stored inside to prevent water from getting into the heat transfer fluid. If sealed drums must be left outdoors, they should be stored on their sides. While unopened totes are weatherproof, they should not be stacked if left outdoors. If the fluid is to be stored outside below it’s minimum pumpable temperature, the containers should be moved indoors to warm up before charging the fluid into the system.
Replacing Existing Fluid
In many cases, changing fluid involves a straight forward drain and fill. There are very few fluids that are so incompatible that 10-15% residue will affect the new Paratherm. If you have any questions, contact us.
Charging New Systems
Unless required for product-quality reasons, new systems do not need to be cleaned before Paratherm is charged. The amount of chemical coatings, oils, and other manufacturing residues are usually not enough to affect the fluid life. All that is necessary is to install a Y-strainer with a minimum 60-mesh screen upstream of the pump to catch any metal or welding residue. The screen can be removed once the system has been cycled twice through it’s operating temperature.
The fluid in new systems should be tested within the 9 to 12 months of start-up. New fluid in existing systems should be tested within the first month of operation to establish a baseline for future testing.