SECTION 2 3000P-4500 USER MANUAL
13
2.3 SULLAIR COMPRESSOR
UNIT, FUNCTIONAL
DESCRIPTION
Sullair air compressors feature the Sullair
compressor unit, a single-stage, positive
displacement, flood lubricated- type compressor.
This unit provides continuous compression to meet
your needs.
The 3000-4500 Series compressors are factory-filled
with Sullube lubricant. For more information on fluid
fill, consult Specifications on page 23.
Sullair 24KT compressors are filled with a fluid that
rarely needs to be changed. Use only Sullair 24KT
fluid in the event that a fluid change is required.
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
instructions and self- addressed container is to be
supplied by your Sullair dealer at start-up. The user
will receive an analysis report with
recommendations.
Fluid is injected into the compressor unit hoses and
mixes directly with the air as the rotors turn,
compressing the air. The fluid flow has three basic
functions:
1. As coolant, it controls the rise of air tempera-
ture normally associated with the heat of
compression.
2. Seals the clearance paths between the
rotors and the stator and also between the
rotors themselves.
3. Acts as a lubricating film between the rotors
allowing 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.
NOTE
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 war-
ranty.
CAUTION
Mixing of other lubricants within the com-
pressor unit will void all warranties.
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