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8 Trouble tracing 8.2 Sediment discharge function
8.2 Sediment discharge
function
Indication Cause Remedy
The bowl does not eject or
the volume is too small
Air bubbles in piping between
the OWMC and the separator
Purge the system for air
Operating water leakage
through valve plugs in
operating slide or seal ring in
sliding bowl bottom
Change the seals
When intervals between
discharges are long (≥ 1 h) the
operating mechanism may
seize
Discharge twice in order to
reset the system to normal
volume
Incorrect operating pressure
and time adjustment
Correct
The bowl does not close No water in the operating
water tank or the pressure
from the reducing valve is
insufficient
Check the water supply. Adjust
the pressure to maximum
value (approx. 70 kPa) but
avoid leakage (max 50 l/h)
The valve plugs in operating
slide leak
Change the valve plugs
The seal ring in the sliding
bowl bottom leaks
Change the seal ring
Impurities under the sliding
bowl bottom
Clean
Seizure on the bowl nave Remedy according to
instructions for maintenance
The seal ring for bowl hood
leaks
Change the seal ring
The discharge volume
increases
This may occur if leakage of
operating water increases due
to readjustment of operating
water pressure
Run the separator with
constant operating water
pressure
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