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Section 5 • Maintenance/Service
Compressor Shaft Seal Replacement
Shaft Seal Assembly
The shaft seal is made up of a mating ring and a carbon
or silicon carbide (SC) component.
The mating ring is the rotating part of the seal and is in-
stalled against the shaft shoulder. It has a drive notch on
one end which aligns with the drive pin inserted in the
shaft.
Handling Seal Face with Care
•
Avoid touching seal faces as much as
possible during installation.
•
Be sure to always keep seal faces
face-up, rather than face-down, see
image on the right.
5 – 24
Figure 5-31. Shaft Seal Assembly
Figure 5-32. Handling Seal Face with Care
HPLD Single Screw Compressor • Installation, Operation and Service Manual • Emerson • 35391HP
Carbon or SC component is the stationary part of the
seal and is installed into the shaft seal housing using an
O-ring.
The shaft seal housing with the stationary part is assem-
bled in the compressor main housing using an O-ring,
see Figure 5-31.
The shaft seal needs to be carefully handled and installed
to function properly. Please see Figure 5-32 for details.
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