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Appendix
7.2
Flow chart
101 Intake air INLET
102 Compressed air OUTLET
103 Water INLET
104 Water OUTLET
1 Suction filter
2 Maintenance display
3 Vacuum switch (for suction filter monitoring) *
4 Suction controller
5 Air relief and regulation control valve
6 Pressure switch (for rotational direction, system relief and V-belt monitoring) *
7 Drive motor
8 Air end
9 Final compression temperature display and switch
10 Combined compressed air/oil receiver
11 Oil separator
12 Safety valve
13 Differential pressure switch (for oil separator monitoring) *
14 System pressure switch (for system pressure build-up and monitoring) *
15 Safety pressure switch (for pressure limitation) *
16 Thermostatic oil control valve
17 Oil cooler
18 Oil filter
19 Differential pressure switch (for oil filter monitoring) *
20 Oil throttle
21 Minimum pressure check valve
22 Compressed air after-cooler
23 Operating pressure switch
24 Pressure gauge
25 Stop valve, compressed air outlet
26 Pressure sensor for network pressure (frequency converter)
27 Stop valve, oil drainage
28 Check valve drainage line (up to 75 kW)
31 3/2-way solenoid valve
32 2/2-way solenoid valve
34.1 Bypass valve *
* Option
To be provided by customer:
35 Dirt trap
36 Stop valve
BOGE Operating instructions for S 31-2...S 341 series screw compressors
Page 95