4.4.2 Condensate drainage through the float drain
Float drains are mechanical automatic condensate drains whose closing mechanism is triggered by the buoyancy of a
float body
[1]
. When the condensate
[2]
in the container raises above a certain level, the buoyant lift of the float body
[1]
opens the outlet channel
[3]
for the condensate. The float closes again when the condensate
[1]
drops below a
certain level: A small amount of condensate remains in the container.
Two different float drains are used to drain the condensate:
•
Open when depressurized ([NO] normally open) - at an operating pressure ≤ 0.5 bar(ü) the float drain opens
•
Closed when depressurized ([NC] normally closed) - the float drain is closed even at an operating pressure of 0 bar(ü)
Float drain opens
Float drain closes
3
2
1
3
2
1
Both types of float drain are delivered in the position >>Automatic drainage<<. The knurled-head screw is screwed down
to the stop.
To test the drainage function or release pressure to the separator to complete maintenance, the float drain can be set to
the position >>mechanically open<<. To do so, unscrew the knurled-head screw counterclockwise (left-hand turn) to stop.
Automatic drain
Mechanically open
INFORMATION
Condensate discharge!
i
Condensate discharge is dependent on the product combination and may vary.
For further information on possible product combinations see “4.3 Product identification” on page 14.
Installation and operation instructions
CLEARPOINT
®
Water separator
17 | 56
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