Oil system
Air pressure forces the oil from receiver (AR) through oil cooler (Co), filters (OF) and oil stop
valve (Vs) to compressor element (E) and the lubrication points.
Oil stop valve (Vs) prevents the compressor elements from flooding with oil when the compressor
is stopped.
Valve (Bv) by-passes oil cooler (Co) when starting the compressor from a cold condition, so
ensuring rapid warming of the oil to normal working temperature.
In air receiver (AR) most of the oil is removed from the air centrifugally. Almost all of the
remaining oil is removed by the separator element.
2.3 Cooling and condensate system
Condensate drain system
Condensate drains
Reference Designation
Dac Automatic condensate drain, compressor
Dmc Manual condensate drain
A condensate trap is installed downstream of the air cooler to prevent condensate from entering
the air outlet pipe. The trap is provided with a WSD for automatically draining condensate and
with a manual drain valve.
This condensate can contain small amounts of oil and should be processed according to local
environmental legislation.
Cooling system
On air-cooled compressors, the air and oil coolers are cooled by fans.
Instruction book
14 APF221384
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