13-18-601 Page 52
WATER SEPARATOR AND DRAIN
– These devices separate and drain the water (condensed by the air
cooler) mixed with the compressed air delivered by the compressor package. Note that this device is not
used the optional compressed air dryer is supplied, as the latter’s water separator is employed for this
process.
Figure 6-5 – WATER SEPARATOR AND DRAIN
The separator (4) removes the liquid water from the compressed air stream by inertial effects and
collected in a lower bowl (3). The collected water is evacuated by a float-type drain valve (1). The device
prevents the loss of compressed air by only allowing the discharge of liquid water during its opening
phase. An isolation ball valve (5) is provided between the separator bowl (3) and the drain valve body
(1). This allows the safe and quick removal of the drain valve for servicing, in case the drain valve
malfunctions.
In case the drain valve is fouled with dirt, cleanse the collection bowl also:
1. Be sure the unit is completely off and oil sump is depressurized.
2. Disconnect, lockout and tagout power supply to the compressor package.
3. Close (when provided) valve isolating compressor package from air system.
4. Unscrew drain valve (1) from isolation valve (5).
5. Unscrew collection bowl (3) from separator housing (4).
6. Inspect and cleans collection bowl and sealing o-ring.
7. Reinstall in reverse order.