2.9 Cooling oil recommendation
A sticker showing the type of oil used is located near the oil separator tank filler.
Information on ordering cooling oil is found in chapter 11.
Cooling oils for general applications
SIGMA FLUID
MOL S-460 S-570
Description Mineral oil Silicone-free
synthetic oil
Synthetic oil
Application Standard oil for all appli‐
cations except in con‐
nection with foodstuffs.
Particularly suitable for
machines with a low du‐
ty cycle.
Standard oil for all applica‐
tions except in connection
with foodstuffs.
Particularly suitable for ma‐
chines with a high duty cycle.
Not suitable for East- / South-
East-Asian countries.
Special oil for ambient
conditions with high tem‐
peratures and humidity.
Standard oil for all appli‐
cations except in connec‐
tion with foodstuffs.
Particularly suitable for
machines with a high duty
cycle.
Approval — — —
Viscosity at
40 °C
44 mm
2
/s
(DIN 51562–1)
45 mm
2
/s
(D 445; ASTM test)
52.8 mm
2
/s
(D 445; ASTM test)
Viscosity at
100 °C
6.8 mm
2
/s
(DIN 51562-1)
7.2 mm
2
/s
(D 445; ASTM test)
8.0 mm
2
/s
(D 445; ASTM test)
Flash point 220 °C
(ISO 2592)
238 °C
(D 92; ASTM test)
258 °C
(D 92; ASTM test)
Density at
15 °C
—
864 kg/m
3
(ISO 12185)
0.869 kg/l
(D 1298; ASTM test)
Pour point –33 C
(ISO 3016)
–46 ℃
(D 97; ASTM test)
–54 ℃
(D 97; ASTM test)
Demulsibility
at 54 °C
— 40/40/0/10 min
(D 1401; ASTM test)
15 min
(D 1401; ASTM test)
Tab. 14 Cooling oil recommendation
Cooling oils for applications in food processing
SIGMA FLUID
FG-460 FG-680
Description Synthetic oil Synthetic oil
Application Specifically for machines in applica‐
tions where the compressed air
may come into contact with food‐
stuff.
Special oil for ambient conditions with
high temperatures and humidity.
Specifically for machines in applications
where the compressed air may come into
contact with foodstuff.
2 Technical Specifications
2.9 Cooling oil recommendation
8
Operating Manual Screw Compressor
ASK 901824 12 E
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