Compressor Cooling And Lubrication System, Functional Description; Sullair Rotary Screw Air Compressor; System, Functional Description - Sullair LS-12 Operators Manual And Parts Lists

Section 2
DESCRIPTION
Figure 2 ---2 Sullair Rotary Screw Air Compressor (Typical Air ---cooled Compressor Shown)
vides continuous pulse---free compression to meet
your needs. With a Sullair compressor, there is no
maintenance or inspection of the internal parts of
the compressor unit permitted in accordance with
the terms of the warranty.
Sullair 24KT compressors are filled with a fluid
which rarely needs to be changed. In the event a
change of fluid is required, use only Sullair 24KT
fluid. MIXING OF OTHER LUBRICANTS WITHIN
THE COMPRESSOR UNIT WILL VOID ALL WAR-
RANTIES!
Sullair recommends that a 24KT sample be taken
at the first filter change and sent to the factory for
analysis. This is a free service. The sample kit with
instruction and self---addressed container is to be
supplied by your Sullair dealer at start---up. The
user will receive an analysis report with recommen-
dations.
Fluid is injected into the compressor unit in large
quantities and mixes directly with the air as the ro-
6
tors turn, compressing the air. The fluid flow has
three basic functions:
1. As coolant, it controls the rise of air temperature
normally associated with the heat of compres-
sion.
2. Seals the leakage paths between the rotors and
the stator and also between the rotors them-
selves.
3. Acts as a lubricating film between the rotors al-
lowing one rotor to directly drive the other, which
is an idler.
After the air/fluid mixture is discharged from the
compressor unit, the fluid is separated from the air.
At this time, the air flows through an aftercooler and
separator, then to your service line while the fluid is
being cooled in preparation for reinjection.
2.4 COMPRESSOR COOLING AND LUBRICATION

SYSTEM, FUNCTIONAL DESCRIPTION

R e f e r t o F i g u r e 2 --- 3
cooled version) consists of a fan, fan motor, radia-
tor---type aftercooler/fluid cooler, full flow fluid
filter, thermal valve, fluid stop valve and inter-
. T h e cooling system ( a i r ---