Lauda P 10, Operation Manual

Page: 59 / 160

5 Commissioning
5.1 LAUDA heat transfer liquids
DANGER!
Use of unsuitable heat transfer liquid
Fire

Select a heat transfer liquid with a temperature range suit-
able for the application.
Please note:

If the heat transfer liquid reaches the lower limit of the temperature
range, the temperature control properties can be expected to deterio-
rate as a result of the increase in viscosity. Therefore, only fully utilize
this temperature range when absolutely necessary.

Never use contaminated heat transfer liquids. Contamination in the
pump housing can cause the pump to seize and the device to shut down.

Observe the safety data sheet for the heat transfer liquid. You can
request a copy of the safety data sheets at any time, if necessary.
Table 27: Permitted heat transfer liquids
Designation Chemical name
Working tem-
perature range in
°C
Viscosity (kin) in
mm²/s (at 20 °C)
Viscosity (kin) in
mm²/s at tem-
perature
Flash point
in °C
Kryo 95 Silicone oil -95 – 60 1.6 20 at -80 °C 64
Kryo 60 Silicone oil -60 – 60 3 25 at -60 °C 62
Kryo 51 Silicone oil -50 – 120 5 34 at -50 °C 120
Kryo 30
Monoethylene glycol/
water mixture
-30 – 90 4 50 at -25 °C ---
Kryo 20 Silicone oil -20 – 170 11 28 at -20 °C 170
Aqua 90 Decalcified water 5 – 90 1 --- ---
Therm 250 Silicone oil 50 – 250 125 25 at 70 °C 300
Therm 180 Silicone oil 0 – 180 23 36 at 0 °C 250
Therm 160
Polyalkylene glycol
and additives
60 – 160 141 28 at 60 °C 260
Table 28: Heat transfer liquid order numbers
Designation
Container size
Catalog number
5 L 10 L 20 L
Kryo 95 LZB 130 LZB 230 LZB 330
Kryo 60 LZB 102 LZB 202 LZB 302
V6 PRO bath thermostats and circulation thermostats 59 / 156