3.11
[en] 02/2014
Installation and operating manual - NK 31
1. Fine separator cartridge
2. Minimum pressure valve
3. Sight glass for oil separation
3.11.1 Oil intake non-return valve
Figure 3-10
The oil intake non-return valve 1 prevents ood-
ing of the ne separator cartridge with oil ow-
ing back out of the screw compressor due to
the pressure difference in the system when the
screw compressor system is switched off.
Figure 3-9
3.11 Fine separator
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