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Synthetic
Refrigeration Compressor Oils> |
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INTRODUCTION
SELCO Compressor Lube SF-580 is a high performance
synthetic gas compressor lubricant based on
a poly-alkylene glycol. It is designed for
enclosed pattern gas compressors for hydrocarbon
and chemical gases where the crankcase and
bearings operate in a gas-filled atmosphere.
Under these conditions the gas is readily
soluble in mineral oil lubricants which, on
dilution, suffer a significant drop in viscosity
and lubricant performance. This problem can
be overcome by using SELCO Compressor Lube
SF-580 in which the gases are much less soluble.
SELCO Compressor Lube SF-580 is particularly
suitable for marine service on vessels carrying
specialist liquefied gas cargoes.
ADVANTAGES
Reduced gas solubility leading to improved
wear protection, extended lubricant life,
improved compressor efficiency and reduced
foaming.
Multigas service for a wide rage of gases
including vinyl chloride and butadiene. The
lubricant does not promote the dimerisation
of butadiene or generate solid deposits. SELCO
Compressor Lube SF-580 therefore obviates
the need to change to mineral oil for butadiene
compression, thus simplifying the lubricant
inventory, avoiding mistakes and saving time
and expense.
APPLICATIONS
SELCO
Compressor Lube SF-580, is used for the following
gases
 |
Liquefied
petroleum gases such as propane and
butane |
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Liquefied
natural gases such as methane and ethane |
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Hydrocarbon
chemical gases such acetylene, propylene
& butylene |
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Chemical
gases such as ammonia, vinyl chloride
and butadiene |
TYPICAL PHYSICAL PROPERTIES
SELCO Compressor Lube SF-580 is
a clear pale yellow viscous liquid with a
mild odour. Typical properties are given below
| Relative
density |
1.050
@ 25 ° C.(ASTM D 1298) |
| Viscosity
|
185
cst @ 40 ° C.(ASTM D 445)
35 cst @ 100 ° C.
|
| Viscosity
index |
200
(ASTM D 2270) |
| Flash
point |
260
° C.(C.O.C.) (ASTM D 92) |
| Pour
point |
-30
° C.(ASTM D 97) |
| Corrosion
test |
Rating
(no corrosion), tested on cast
iron and aluminium (test A DIN
5135).
|
| Foam
test (ASTM D 892) |
Air,
45/10 @ 24 ° C.
Air, 140/20 @ 93.5 ° C.
Propane, 35/10 @ 24 ° C.
Propane, 70/20 @ 93.5 ° C.
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