Comprag FR1510-500 [15/120] Main components

Comprag F1508 [15/120] Main components
15COMPRAG Screw air compressor A/F-Series
Main components
1 Electric motor 12 Non-return valve
2 Belt drive 13 Heat-exchanger, Air section
3 Air end 14 Heat-exchanger, Oil section
4 Air lter 15 Thermostatic valve
5 Intake valve 16 Oil lter
6 Air-Oil separation tank 17 Drain valve
7 Safety valve 18 Oil lling plug
8 Air-Oil separator 19 Oil level sight glass
9 Throttle valve 20 Air outlet valve
10 Non-return valve 21 Refrigerated dryer (ARD only)
11 Min. Pressure valve 22 Pressure vessel
2.4 Functional description (see Fig. 2.3.1 and Fig. 2.3.2)
Air ow: Air drawn through Air lter (4) and open Intake valve (5) into compressor Air-end (3) is compressed.
Compressed air and oil ow into Air-Oil separation tank (6). The air is discharged via Min.
Pressure valve (11) through Heat-exchanger (13) towards the Air Outlet Valve (20).
Oil ow: Air pressure forces oil from the air-oil separation tank (6) through the heat-ex-
changer (14) and the oil lter (16) to the compressor air-end (3) and the lubrication points.
In the air-oil separation tank (6), most of the oil is removed centrifugally; the rest is re-
moved by the air-oil separator (8).
The oil system is tted with a thermostatic valve (15). When the oil temperature is be-
low the set-point of the thermostatic valve, the thermostatic valve shuts off the oil supply
from oil heat-exchanger (14). The thermostatic valve starts opening the supply from heat-
exchanger (14) when the oil temperature exceeds the valve’s setting. The setting of the
thermostatic valve depends on the model. See table Technical Data.
Cooling system: The cooling system comprises a combined air section (13) and an oil sec-
tion (14) heatexchanger. A cooling fan, mounted in the fresh air intake section, generates
the cooling air in order to cool the heat-exchanger.

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