Chicago Pneumatic CPS 750, Instruction Manual, Page: 26 / 94

CPS 750
26 1310 3012 02
CPS
2.4.2 Air flow
Air drawn through the airfilter (AFce) into the compressor element (CE) is compressed. At the element
outlet, compressed air and oil pass into the air receiver/oil separator (AR/OS).
The check valve (CV) prevents blow-back of compressed air when the compressor is stopped. In the air
receiver/oil separator (AR/OS), most of the oil is removed from the air/oil mixture; the remaining oil is
removed by the separator element.
The oil collects in the receiver and on the bottom of the separator element.
The air leaves the receiver via a minimum pressure valve (MPV) which prevents the receiver pressure
from dropping below the minimum working pressure, even when the air outlet valves are open (specified
in section
8.3.2 Limitations ). This ensures adequate oil injection and prevents oil consumption.
A temperature sensor (TS) and a working pressure sensor (WPS) are comprised in the system.