Chicago Pneumatic CPF 300 A-8.6-60, Инструкция, Страница: 18 / 117

Instruction book
16 909935AIB
Drawing reference Description
A Air cooler
B Oil cooler
C Air receiver / Oil separator
D Compressor stage
E Unloader
F Gear box
G Oil filters
H Condensate trap
I Cooling fans
J Air filter
K Electrical cabinet
L Motor
M Check valve
N Minimum pressure valve
O Thermostatic bypass valve
Air flow
Air drawn through filter (100 or J) and unloader (101 or E) is compressed in compressor stage
(102 or D). Compressed air and oil are discharged through check valve (104 or M) to air
receiver / oil separator (106 or C) where oil is separated from the compressed air. The air flows
through minimum pressure valve (109 or N) to aftercooler (110 or A).
On CPF 300 A compressors, the cooled air is discharged through condensate trap (111 or H )
and the air outlet towards the air net.
Check valve (104 or M) prevents blow-back of compressed air.
Minimum pressure valve (109 or N) prevents the receiver pressure from dropping below a
minimum pressure. The valve has a built-in check valve.
Oil system
Air pressure forces the oil from air receiver / oil separator (106 or C) through oil cooler (112 or B),
filters (114 or G) and oil stop valve (115) to the compressor stage (102 or D) and the lubrication
points.
Thermostatic by-pass valve (113 or O) prevents overcooling of the oil (and boosts oil warm-up)
by avoiding the flow over the oil cooler (112 or B) below a certain temperature.
In the air receiver / oil separator (106 or C) most of the oil is centrifugally removed from the air.
Almost all of the remaining oil is removed by the oil separator element (107).