Solvay

Solvay GALDEN HT PFPE

Solvay

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.