Eastsign
14
R
O
TAR
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HE
AT
PRE
SS
SO
T-
64H
USER
MANU
AL
7.4 Heating system
The oil drum was filled heat transfer oil (mineral base, suggested brand name: Total). This is the specification:
Density: 0.83-0.87g/cm
3
at 20
o
C
Viscosity: 21-31 mm
2
/s at 50
o
C
Flash Point (open to air): 173
o
C
Distillation range (2%v/v): 340
o
C
Maximum temperature at use: 320
o
C
In generally, the heating oil inside can be used for 3 years, no need to replace it. If necessary, please add oil
from the oil tank.
Note: Do not replace the parts/heating oil yourself without consulting our engineers. The parts must be
provided or approved by Eastsign.