Galden® HT55 HT70 HT80 HT110 HT135 HT170 HT200 HT230 HT270
Galden® HT PFPE is an inert, insulating, high-performance heat transfer medium with a boiling point range of 55 to 270 ˚C. This range is wider than other fluorinated heat transfer media and can be used at temperatures up to 290 ˚C.
Solvay Specialty Polymers supports demanding applications such as:
We offer safe heat carriers (HT) for various applications.
• semiconductor
• Chemistry
• Pharmaceuticals
• Vapor phase heating
• Cooling of transformers and supercomputers.
• Circulating cooler
• Nuclear power
Features | advantage |
Excellent thermal/chemical stability | No corrosion or reaction of assembly materials |
Excellent compatibility with materials | No residue generation or decomposition No seizure of circulation pump due to fluid decomposition or corrosion |
Excellent thermal conductivity | Excellent temperature control |
Grades for various boiling points | You can choose from a variety of grades to obtain the maximum performance. |
High boiling point, low pour point, low viscosity | High boiling grade reduces evaporation losses without affecting performance |
Less loss due to evaporation | low cost of ownership |
No flash point or combustion point No danger of explosion non-toxic No self-ignition point |
Safe to use at high temperatures Improved safety |
2\ Galden® HT PFPE Heat Transfer Media
low boiling point | high boiling point | |||||||||
Characteristic | unit | HT55 | HT70 | HT80 | HT110 | HT135 | HT170 | HT200 | HT230 | HT270 |
boiling point | ˚C | 55 | 70 | 80 | 110 | 135 | 170 | 200 | 230 | 270 |
pour point | ˚C | < –125 | < –110 | –110 | –100 | –100 | –97 | –85 | –77 | –77 |
density | g/cm3 | 1.65 | 1.68 | 1.69 | 1.71 | 1.72 | 1.77 | 1.79 | 1.82 | 1.85 |
kinematic viscosity | cSt | 0.45 | 0.50 | 0.57 | 0.77 | 1.00 | 1.80 | 2.40 | 4.40 | 14.00 |
vapor pressure | torr | 225 | 141 | 105 | 17 | 5.8 | 0.8 | 0.2 | 0.03 | < 10–2 |
specific heat | cal/g·˚C | 0.23 | 0.23 | 0.23 | 0.23 | 0.23 | 0.23 | 0.23 | 0.23 | 0.23 |
Latent heat of vaporization at boiling point |
cal/g | 22 | 17 | 17 | 17 | 16 | 16 | 15 | 15 | 15 |
refractive index | – | 1.280 | 1.280 | 1.280 | 1.280 | 1.280 | 1.280 | 1.281 | 1.283 | 1.283 |
thermal expansion coefficient | cm3 /cm3 ·˚C | 0.0011 | 0.0011 | 0.0011 | 0.0011 | 0.0011 | 0.0011 | 0.0011 | 0.0011 | 0.0011 |
surface tension |
dyne/cm | 14 | 14 | 16 | 16 | 17 | 18 | 19 | 19 | 20 |
Thermal conductivity | W/m·K | 0.065 | 0.065 | 0.065 | 0.065 | 0.065 | 0.065 | 0.065 | 0.065 | 0.065 |
dielectric strength |
kV (2.54mm gap) |
40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 |
dielectric constant | – | 1.86 | 1.86 | 1.89 | 1.89 | 1.92 | 1.94 | 1.94 | 1.94 | 1.94 |
volume resistivity | Ωcm | 1 x 1012 | 1 x 1015 | 1.5 x 1015 | 1.5 x1015 | 1.5x1015 | 1.5x1015 | 6x1015 | 6x1015 | 6x1015 |
average molecular weight | amu | 340 | 410 | 430 | 580 | 610 | 760 | 870 | 1,020 | 1,550 |
Dissipation tangent (1kHz) |
– | 2 x 10–4 | 2 x 10–4 | 2 x 10–4 | 2 x 10–4 | 2 x 10–4 | 2 x 10–4 | 2 x 10–4 | 2 x 10–4 | 2 x 10–4 |
water solubility | ppm (wt) | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
solubility of air | cm3(gas)/ 100cm3(liquid) |
26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
All values are at 25 °C unless otherwise stated.
Galden® High boiling point (HB)
Galden® HT High Boiling Fluids are insulating fluids with a boiling point range of 170 to 270 ˚C and are a family of high performance heat transfer fluids designed for high temperature applications. Due to its high boiling point, evaporation losses are significantly lower than lower boiling point fluids.
Galden® High Boiling Point (HB) fluids can be used at intermediate temperatures and can be used in place of fluids with high evaporative losses to reduce evaporative losses.
Comparison of losses due to evaporation
According to JIS C2101 test method
(After 8 hours at 40℃)
compatibility
Galden® HT PFPE fluid does not react with the following materials:
metal | plastic | elastomer |
AISI 316、copper、 brass、 iron、 nickel、 aluminum、 stainless steel、 bronze |
low density PE、 polypropylene、 polycarbonate、 ABS copolymer、 polyphenyl oxide、 PET、POM、 PTFE、 PVC、PMMA |
Butyl rubber、 NBR、 EPDM、 natural rubber、 silicone rubber、 fluorosilicone |
Seal and gasket compatibility
More than 99% of plasticizers used in the polymer industry are hydrocarbon-based compounds. The chemical structure of Galden® HT PFPE fluids is hydrogen-free and will not combine with hydrocarbon-based compounds.
safety
Galden® HT PFPE fluids have beneficial environmental and worker safety properties. It is non-toxic, non-flammable and has zero ozone depletion potential (ODP).
Chemically inert and non-corrosive, Galden® HT PFPE fluid is safe for operators to handle.