4.4.2
Condensate drainage through float drain
INFORMATION Condensate drain!
i
Condensate drainage depends on the product combination and may vary.
Float drains are mechanical automatic condensate drains whose closing mechanism is triggered by the buoyancy of a
float
[1]
. If the condensate
[2]
in the filter housing rises above a certain level, the buoyancy of the float
[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 filter housing.
Two different float drains are used for dicharging the condensate:
•
Normally open (NO) - at operating pressure ≤ 0,5 bar(g) / 7.25 psi(g) the float drain opens
•
Normally closed (NC) - the float drain is closed even at a pressure above 0 bar(g) / psi(g)
Float drain opens
Float drain closes
3
2
1
3
2
1
Both types of float drains are delivered from the factory set in the "automatic drainage" position.
The knurled screw is turned down to the stop.
The float drain can be set to the "mechanically open" position to test the drain function or to relieve the pressure on the
filter during maintenance work. Turn the knurled screw counterclockwise (left-hand thread) up to the stop.
Automatic drainage
Mechanically open
For further information on possible product combinations see
“4.3 Product identification” on page 17
CLEARPOINT
®
3
eco
coalescing filter
Installation and operation instructions
20 | 60
