Lauda Integral XT 150, Руководство по эксплуатации

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Integral XT
36
Preparations
YAWE0028 / 24/06/2016
6.2 Heat transfer liquids, cooling water and hoses
Filling, venting and degassing of heat transfer liquids (
þ
7.6).
Testing of the heat transfer liquid (
þ
9.3.4).
a) Approved heat transfer liquids
LAUDA
designation
Tempera-
ture range
Chem.
designation
Viscosity
(kin)
Viscosity
(kin)
at
temperature
Fire
point
Packing drum
Order number
from °C
to °C
mm²/s
at 20 °C
mm²/s °C 5 L 10 L 20 L
Ultra 350 30 – 350
Synthetic
heat transfer
liquid
47 28 at 30 °C > 240 LZB 107 LZB 207 LZB 307
Kryo 30
À
-20 – 90
Monoeth-
ylene
glycol/ water
4 35 at -20 °C -- LZB 109 LZB 209 LZB 309
Kryo 70 -70 – 220 Silicone oil 5 43 at -60 °C > 162 LZB 127 LZB 227 LZB 327
Kryo 90 -90 – 140 Silicone oil 1.76 15 at -70 °C
/
56
LZB 128 LZB 228 LZB 328
+
À
The proportion of water reduces with longer working at high temperatures
à
Mixture be-
comes flammable (flash point 128 °C).
à
Check the mixing ratio using a hydrometer.
−
When choosing the heat transfer liquid it must be noted that at the lower limit of the tempera-
ture range a worsening of the properties is to be expected due to the increasing viscosity.
Therefore only fully exploit temperature ranges when required.
−
The working ranges of the heat transfer liquids and hoses are general figures which can be
tightened due to the operating temperature range of the devices.
−
With silicone rubber, silicone oils lead to substantial swelling.
à
Never use silicone oil with
silicone hoses.
−
EPDM hose is not suitable for Ultra 350 and not suitable for mineral oils.
Safety data sheets for heat transfer liquids can be ordered if required.
b) Cooling water
Certain requirements are placed on the cooling water with regard to purity. Depending on the cooling wa-
ter contamination, a suitable method of purification and/or treatment of the water must be employed. The
condenser and the complete cooling water circuit can become blocked, damaged and leaky due to unsuit-
able cooling water. Extensive consequential damage may arise on the whole cooling circuit. The cooling
water quality depends on local conditions. If a fault or damage occurs due to unsuitable water quality, it is
not covered by our guarantee.