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Galden® PFPE Heat Transfer Fluids——HT200

Product Number：Galden® HT55 HT70 HT80 HT110 HT135 HT170 HT200 HT230 HT270
[Operating Temperature]
55°C to 270°C
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[Operating Temperature]
55°C to 270°C

 

Galden® PFPE Heat Transfer Fluids——HT200

Galden® PFPE HT55 HT70 HT80 HT110 HT135 HT170 HT200 HT230 HT270

 
Product Description
Syensqo provides safe and reliable heat transfer (HT) media for demanding applications, including:
  • Semiconductors
  • Chemical processing
  • Pharmaceuticals
  • Vapor-phase heating
  • Transformer and supercomputer cooling
  • Recirculating chillers
  • Nuclear systems

Galden® HT PFPE are inert, dielectric, high-performance heat transfer fluids with boiling points ranging from 55°C to 270°C. This broader range surpasses other fluorinated heat transfer fluids, allowing PFPE to operate at end-use temperatures up to 290°C.
Key Features Key Benefits
Outstanding thermal and chemical stability Non-corrosive and non-reactive with construction materials
Excellent compatibility with a wide range of materials No residue formation or decomposition byproducts
Superior heat transfer performance Prevents pump clogging due to fluid degradation
Wide boiling range, multiple grades available Ensures stable and precise temperature control
High boiling point, low pour point, low viscosity Multiple grades allow optimal fluid selection
Minimal evaporation loss High boiling grades reduce evaporation loss
No flash point, no ignition Maintains thermal performance
no explosion hazard Lowers cost of ownership
Non-toxic Safe for high-temperature operations
Non auto-ignition Enhanced safety

Galden® High Boiling Point (HB) 

The Galden® HT High Boiling Point (HB) series ranges from 170°C to 270°C and is designed for high-temperature applications. These fluids have significantly lower evaporation rates than low-boiling point liquids and can be used in medium-temperature systems to minimize loss.

Typical Properties
Units		 Low Boiling High Boiling
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 -66
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
Heat of vap. 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
Coefficient of thermal expansion 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 (2.54 mm gap) 40 40 40 40 40 40 40 40 40
Dielectric constant - 1.86 1.86 1.89 1.92 1.92 1.94 1.94 1.94 1.94
Volume resistivity Ohm • cm 1·1012 1·1015 1.5·1015 1.5·1015 1.5·1015 1.5·1015 6·1015 6·1015 6·1015
Average molecular weight amu 340 410 430 580 610 760 870 1,020 1,550
Dissipation factor (1 Khz) - 2·10-4 2·10-4 2·10-4 2·10-4 2·10-4 2·10-4 2·10-4 2·10-4 2·10-4
Solubility of water ppm (wt) <10 <10 <10 <10 <10 <10 <10 <10 <10
Solubility of air cm3 gas 100 cm3 liquid 26 26 26 26 26 26 26 26 26

Unless otherwise specified, all values are measured at 25°C.
 

Material Compatibility 

Galden® HT PFPE fluids are compatible with the following materials:
Compatible Metals Compatible Plastics Compatible Elastomers
AISI 316, Copper, Brass, Iron, Nickel, Aluminum, Stainless Steel, Bronze LDPE, Polypropylene, Polycarbonate, ABS, PPE, PET, POM, PTFE, PVC, PMMA Butyl Rubber, NBR, EPDM, Natural Rubber, Silicone Rubber, Fluorosilicone Rubber


Seal Compatibility

Galden® HT PFPE fluids contain no hydrogen atoms and thus have no affinity with hydrocarbon-based plasticizers, which account for over 99% of additives used in polymer seals, ensuring excellent seal integrity.


Safety

Galden® HT PFPE fluids offer excellent environmental and occupational safety:
  • Non-toxic
  • Non-flammable
  • Zero ozone depletion potential (ODP)
  • Chemically inert and non-corrosive, ensuring safe handling
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