MNL-0295
August 27, 2009 Page 19
3.3 Intermediate Separator
An intermediate separator is mounted on the compressor block. This separator is designed to remove oil
and water which accumulates due to the cooling of the medium after the compression process. Separation
is achieved by means of centrifugal action provided by a vortex plate (1)
3.3.1 Maintenance
The Intermediate Separator P/N 081798 requires no maintenance.
3.4 Compressor Valves
3.4.1 Description
The valve heads of the individual stages form the top part of the cylinders. The intake and discharge
valves are fitted inside the valve heads. (Note that the valves are operated by air flow. (See Figure 3-4).
On the suction stroke, the intake valve is opened and air flows into the cylinder. At the start of the com-
pression stroke the intake valve closes. The end of the compression stroke the compressed air forces the
Figure 3-3 Intermediate Separator
1. Vortex Plate
2. Hollow Screw
3. O-ring
4. Knurled Nut
^ WARNING
The rapid depressurizing and repressurizing of the intermediate separator during condensate draining sub-
jects it to metallurgical stresses. To prevent catastrophic failure with the possibility of damage, injury or
death the intermediate separator must be replaced after 85,000 load cycles. A load cycle equals one
depressurization- repressurization. The Bauer recommended frequency of condensate draining is every
fifteen minutes and is a balance between maximizing the life of the oil and water separator chamber and
maintaining the quality of the delivered air.
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