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Quincy QSI 370 scavenge line issues | Air Compressor Guide
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Quincy QSI 370 scavenge line issues

  • Question Title: Quincy QSI 370 scavenge line issues
  • Asked by: Guest
  • Asked On:
  • Answers: 1

I just did a complete PM on unit and I noticed right after I have a lot of oil scavenging in sight glass on scavenge line.


I pulled the orifice out and ran the unit without and still have the same flow rate. I then rerouted the scavenge line to the wet side of the inlet valve to see if it would clear up.


It's still seems like a lot of oil with a new separator. Could it be a faulty separator?


Btw the compressor is running at 190 degrees @ 115 psi full load (inlet valve is wide open) and oil level is where it should be.


Answers & Replies

avatar
Cas

Hi,

You are worried that the separator is not working properly, while you just replaced the separator element.

Please check the inside of the seprator vessel. 99% of the oil separation is done by centrifugal force. The oil/air mixture enters the vessel from an angle. On many/most/all compressors, there is a steel 'splash screen' installed.. it protects the separator from direct contact with the incoming air/oil mixture..

I have attached a screen-shot of what I mean (this is from a different machine). I am talking about number 3120.

If this shield is missing, the oil separation will be very bad, even though a new separator was installed.

Please check and let me know if you need any more help.

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