KAESER SK 22, Operating Manual

Page: 18 / 132

2.9 Cooling oil recommendation
A sticker showing the type of oil used is located near the oil separator tank filler.
For information on ordering cooling oil, please see chapter 11.
Cooling oils for general applications
SIGMA FLUID
MOL
S-460 S-570
Description Mineral oil Synthetic oil Synthetic oil
Application Standard oil for all appli‐
cations except in connec‐
tion with processing of
foodstuffs.
Particularly suitable for
machines with a low duty
cycle.
Standard oil for all applica‐
tions except in connection
with processing of food‐
stuffs.
Particularly suitable for ma‐
chines with a high duty cy‐
cle.
Not suitable for East and
South East Asia.
Special oil for ambient con‐
ditions with high tempera‐
tures and humidity.
Standard oil for all applica‐
tions except in connection
with foodstuffs.
Particularly suitable for ma‐
chines with a high duty cy‐
cle.
Viscosity at
40°°C
46 mm 2 /s
(ASTM D445)
46 mm 2 /s
(ASTM D445)
53 mm 2 /s
(ASTM D445)
Viscosity at
100 °C
6.9 mm
2
/s
(ASTM D445)
7.2 mm
2
/s
(ASTM D445)
8.0 mm
2
/s
(ASTM D445)
Flash point 230 °C
(ASTM D92)
251 °C
(ASTM D92)
258 °C
(ASTM D92)
Density at
15 °C
0.868 g/cm 3
(ASTM D1298)
0.860 g/cm 3
(ASTM D1298)
0.869 g/cm 3
(ASTM D1298)
Pour point: −30 °C
(ASTM D97)
−27 °C
(ASTM D97)
−54 °C
(ASTM D97)
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 foodstuff.
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.
Approval USDA H1, NSF
Approved for applications where
contact with foodstuffs may sporadi‐
cally or incidentally be possible.
USDA H1, NSF
Approved for applications where contact
with foodstuffs may sporadically or inci‐
dentally be possible.
Viscosity at 40°
°C
46 mm 2 /s (ASTM D445) 68 mm 2 /s (ASTM D445)
2 Technical Specifications
2.9 Cooling oil recommendation
8
Operating Manual Rotary screw compressor
SK
901848 21 E