Compatibility Of Kaeser Sigma Lubricants - KAESER SK 19 Service Manual

S-- SERIES SYNTHETIC LUBRICANTS
-
S---Series SIGMA compressor oils are formulated from the most advanced synthetic
lubricants. These "synthetic" lubricants begin as high quality petroleum feed stock.
They are then refined, processed and purified into fluids with very consistent molecular
structure. These oils are carefully blended to produce extremely consistant lubricants
with superior properties. SIGMA synthetic lubricants feature all the advantages of both
PAO and diester fluids.
-
S---460 lubricant is recommended for compressors operating in ambient temperatures
between 40•F and 105•F.
Specialty KAESER LUBRICANTS
-
S---680 lubricant may be used when ambient temperatures are always between 70•F
and 105•F.
-
FG---460 synthetic hydrocarbon based food grade fluid is designed for use in rotary
screw compressors in the application where incidental food contact may occur with
the discharge air. This fluid meets the requirements of the FDA Regulation 21 CFR
§178.3570 and is USDA H---1 approved. FG---460 is approved for canning, food pack-
ing, meat and poultry processing and other applications where incidental food contact
may occur.
SIGMA
LUBRICANT
S---680
FG---460
* Oil changes may need to be more frequent depending on ambient conditions.
When high ambient temperatures or dirty conditions are present, oil changes may be
necessary every 1,000 hours (4,000 hours for synthetic) or even shorter intervals. Oil
change intervals required should be determined through periodic oil analysis.
1.8.3

Compatibility of KAESER Sigma Lubricants

All the above listed KAESER Sigma lubricants are similar to mineral oil in their compatibility
with paints, seals, gaskets and hoses. The typical precautions are required when changing
over from mineral oil to KAESER synthetic hydrocarbon based lubricant.
Never mix lubricants of different types or brands.
When switching from mineral oil to a synthetic oil, the plant's system materials must be
re---evaluated. Certain plastics are not compatible with synthetic oils. The following is a par-
tial list of acceptable and not recommended materials:
SPECIALTY KAESER LUBRICANTS
(Refer to product information to determine suitability.)
DESCRIPTION
ISO 68 Synthetic Lubricant
ISO 46 Food Grade Synthetic
Fluid
Technical Specification
MAXIMUM RECOMMENDED
CHANGE INTERVAL*
First Oil Change Subsequent Oil
6,000 Hours 8,000 Hours
2,000 Hours 3,000 Hours
Change
1 --- 4