Proline Low-temperature Thermostats
22
Preparation
YACE0072 / 21.08.07
6.3
Heat carrier liquids and hose connections
Heat carrier 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
+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 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
-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
44
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
{
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!
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.
−
At devices with nickel-plated evaporator (RP 845, RP 855, RP 890, RP 1290 and RP 1845)
you must not use acid, aqueous heat carrier liquids resp. detergents (ph-value < 7).
−
With the selection of the heat carrier 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 carrier 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.
Summary of Contents for RP 1290
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