Heat Transfer Liquids And Hoses - Lauda Proline RP 845 C Operating Instructions Manual

Proline Edition X cooling thermostats
6.3

Heat transfer liquids and hoses

Approved heat transfer liquids
LAUDA Temperature
designation range
from °C
to °C
5 – 90
Aqua 90 
-95 – 60
Kryo 95
-60 – 60
Kryo 60
-50 – 120
Kryo 51
-40 – 60
Kryo 40
-30 – 90
Kryo 30 
-20 – 170
Kryo 20
60 – 160
Therm 160
0 – 180
Therm 180
50 – 250
Therm 250
 At higher temperatures  Evaporation losses  Use bath covers.

Only use distilled water or fully demineralized high purity water after adding 0.1 g of soda
(Na CO
2
 Water content falls with longer operation at high temperatures  Mixture becomes flammable
(flash point 119 °C).  Check the mixture ratio with a hydrometer.
 At devices with nickel-plated evaporator (RP 845, RP 855, RP 890, RP 1290 and RP 1845)
you must not use acid, aqueous heat transfer liquids resp. detergents (ph-value < 7).
 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. Never use silicone oil with
silicone hoses.
Safety data sheets can be ordered if required.
YACE0100 / October 4, 2018
Chemical
designation
Decalcified water
Silicone oil
Silicone oil
Silicone oil
Hydrous
alcalisalt solution
Monoethylene
glycol/ water
Silicone oil
Polyalkylene
glycol
Silicone oil
Silicone oil
sodium carbonate) / liter of water,  Risk of corrosion!
3
Viscosity
Viscosity
(kin) at
(kin)
temperature
mm²/s
mm²/s
at 20 °C
1 --
1.6 20 at -80 °C
25 at –60 °C
3
5 34 at -50 °C
24 at –40 °C
2.36
50 at –25 °C
4
11 28 at -20 °C
141 28 at 60 °C
23 36 at 0 °C
125 25 at 70 °C
Preparation
Flash Packing drum
point Catalogue number
5 L 10 L
-- LZB 120 LZB 220 LZB 320
64 LZB 130 LZB 230 LZB 330
62 LZB 102 LZB 202 LZB 302
120 LZB 121 LZB 221 LZB 321
-- LZB 119 LZB 219 LZB 319
119 LZB 109 LZB 209 LZB 309
170 LZB 116 LZB 216 LZB 316
260 LZB 106 LZB 206 LZB 306
250 LZB 114 LZB 214 LZB 314
300 LZB 122 LZB 222 LZB 322
20 L
23