Low-Temperature Process Cooling to -88°C (-127°F)
Paratherm CR® heat transfer fluid is a unique blend of synthetic components formulated to provide superior cooling performance in closed-loop heat-transfer systems operating down to -88°C (-127°F) yet is capable of maintenance free operation up to 218° C (425°F).
Get 10ºC colder without changing your equipment…
- 20% Increase in Flow Rate
- No Equipment Modifications
- 10°F Lower Operation, Same Viscosity
- Aerospace Testing Fluid
- Fine Chemical Processes,Pharmaceutical Production
- Fine and Specialty Chemical Processing
- Pharmaceutical production
- Environmental test chambers
Increased capacity in existing systems
In the cryogenic temperature range, Paratherm CR has significantly lower viscosity than silicone based heat transfer fluids. Simply replacing existing fluid with Paratherm CR can increase the cooling output of the system by up to 50% at -70°C and up to 70% at -90°C.
Easier to work with
Paratherm CR will not leave a slippery residue on surfaces if it leaks out. Water will not accelerate fluid degradation or cause significant changes in the freeze point. Testing has shown that Paratherm CR will not cause copper tubing to oxidize if water is present, thus offering designers more flexibility in material selection.
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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 sotred 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 straightforward drain and fill. There are very few fluids that are so icompatible 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 its 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.