Sullair Compressor Unit, Functional Description; Compressor Cooling And Lubrication System, Functional Description - Sullair TS-32S Operator's Manual And Parts List

Section 2
DESCRIPTION
Figure 2-1B Sullair Series TS-32S Rotary Screw Compressor (Water-cooled Typical)
for easy access and servicing.
2.3 SULLAIR COMPRESSOR UNIT, FUNCTIONAL
DESCRIPTION
Sullair tandem air compressors feature the Sullair
compressor unit, a two-stage, positive displace-
ment fluid lubricated-type compressor. This unit
provides continuous air compression to meet your
needs.
Fluid is injected into the compressor unit where it
mixes directly with the air as the internal rotors 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 compression.
2. Seals the leakage 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
6
from the air. At this time, the air flows to the serv-
ice line and the fluid is cooled in preparation for re-
injection.
With a Sullair compressor, there is no mainte-
nance or inspection of the internal parts of the
compressor unit permitted in accordance with
the terms of the warranty.
2.4 COMPRESSOR COOLING AND LUBRICATION
SYSTEM, FUNCTIONAL DESCRIPTION
Refer to Figures 2-2, 2-3A, 2-3B, 2-4A, 2-4B, 2-5A,
2-5B, 2-5C and 2-5D. The cooling and lubrication
system consists of a fluid cooler, full flow fluid fil-
ter, fluid stop valve, thermal valve.
The pressure in the receiver/sump causes fluid flow
by forcing the fluid from the high pressure area of
the sump to an area of lower pressure in the com-
pressor unit.
Fluid flows from the receiver/sump to the thermal