Proline Kryomats
28 Preparation YAUE0007 / 2/26/2009
6.3 Heat transfer liquids and hose connections
Heat transfer liquids
LAUDA
designation
Temper-
ature
range
Chemical
designation
Viscosity
(kin)
Viscosity
(kin) at
temperature
Fire
point
Packing drum
Order number
from °C
to °C
mm²/s
at 20 °C
mm²/s 5 L 10 L 20 L
Aqua 90 c 5...90 Decalcified water 1 -- -- LZB 120 LZB 220 LZB 320
Kryo 85 -85...30 Silicone oil 1.8 17 at -80 °C > 56 LZB 113 LZB 213 LZB 313
Kryo 60 -60...80 Silicone oil 3 25 at –60 °C > 110 LZB 102 LZB 202 LZB 302
Kryo 55 -50...200 Silicone oil 6 30 at –50 °C > 160 LZB 124 LZB 224 LZB 324
Kryo 51 -50...120 Silicone oil 5 34 at -50 °C > 160 LZB 121 LZB 221 LZB 321
Kryo 40 -40...60
Hydrous
alcalisalt solution
2.36 24 at –40 °C -- LZB 119 LZB 219 LZB 319
Kryo 30 d -30...90
Monoethylene
glycol/ water
4 50 at –25 °C -- LZB 109 LZB 209 LZB 309
Kryo 20 -20...180 Silicone oil 11 28 at -20 °C > 230 LZB 116 LZB 216 LZB 316
Therm 160 60...160
Polyalkylene
glycol
141 28 at 60 °C > 273 LZB 106 LZB 206 LZB 306
Therm 180 0...180 Silicone oil 23 36 at 0 °C > 288 LZB 114 LZB 214 LZB 314
Therm 200 60...200 Silicone oil 54 28 at 60 °C > 362 LZB 117 LZB 217 LZB 317
Therm 240 50...240 Silicone oil 130 45 at 50 °C > 378 LZB 122 LZB 222 LZB 322
)
c At higher temperatures Æ Evaporation losses Æ Use bath covers.
Only use distilled water or fully demineralized high purity water after adding 0.1 g of soda (Na
2
CO
3
sodium carbonate)/ liter of water Æ Risk of corrosion!
d Water content falls with longer operation at high temperatures Æ Mixture becomes flammable
(flash point 128 °C) Æ Check the mixture ratio with a hydrometer.
− The use of acidic, aqueous bath liquid or cleaning agents (pH value < 7) is not permissible.
− With the selection of the heat transfer liquid, it should be noted that impairment of the
properties is to be expected at the lower limit of the temperature range due to increasing
viscosity. Therefore, only make maximum use of temperature ranges when essential.
− Application ranges of heat transfer liquids and hoses are general figures, which may be
restricted by the operating temperature range of the units.
With silicone rubber, silicone oils lead to substantial swelling Æ Never use silicone oil with
silicone hoses.
Safety data sheets can be ordered if required.
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