Lauda Proline RP 1290 C, Operating Instructions Manual

Page: 23 / 120

Proline Edition X cooling thermostats
YACE0100 / October 4, 2018
Preparation
23
6.3 Heat transfer liquids and hoses
Approved heat transfer liquids
LAUDA
designation
Temperature
range
Chemical
designation
Viscosity
(kin)
Viscosity
(kin) at
temperature
Flash
point
Packing drum
Catalogue number
from °C
to °C
mm²/s
at 20 °C
mm²/s 5 L 10 L 20 L
Aqua 90

5
– 90
Decalcified water 1 -- -- LZB 120 LZB 220 LZB 320
Kryo 95 -95
– 60
Silicone oil 1.6 20 at -80 °C 64 LZB 130 LZB 230 LZB 330
Kryo 60 -60
– 60
Silicone oil 3 25 at
–60 °C
62 LZB 102 LZB 202 LZB 302
Kryo 51 -50
– 120
Silicone oil 5 34 at -50 °C 120 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

-30
– 90
Monoethylene
glycol/ water
4 50 at
–25 °C
119 LZB 109 LZB 209 LZB 309
Kryo 20 -20
– 170
Silicone oil 11 28 at -20 °C 170 LZB 116 LZB 216 LZB 316
Therm 160 60
– 160
Polyalkylene
glycol
141 28 at 60 °C 260 LZB 106 LZB 206 LZB 306
Therm 180 0
– 180
Silicone oil 23 36 at 0 °C 250 LZB 114 LZB 214 LZB 314
Therm 250 50
– 250
Silicone oil 125 25 at 70 °C 300 LZB 122 LZB 222 LZB 322


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
2
CO
3
sodium carbonate) / liter of water,

Risk of corrosion!

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.