Operating and maintenance instructions
5.4
Checking/cleaning the coalescence channel
5.4.1
Oleosmart-C-OST NS3 to NS20
The coalescence channel is to be checked
as part of the maintenance process. If the
separator is full, at least visual control is
required. This can be performed with a
maximum of one mirror refraction from the
maintenance or control shaft. If obstruc-
tions are discovered (e.g. branches, etc.),
5.4.2
Oleosmart-PR-C-NST NS40 to NS90
Maintenance and accessibility of the
coalescence element structure
(After removing the cover)
In operating state:
The liquid level can be seen directly. The
outflow area can be seen directly with
the float switch. In emptied state (e.g.
required for inspection, tightness test,
cleaning):
You can enter the sludge trap using ope-
ning DN 625 or DN 800 without removing
installed components. You can enter the
separator using opening DN 800 above
the float switch. To do so, the coale-
scence equipment (coalescence pipe)
and the float switch must be removed
and the float guide must be pulled. If the
separator needs to be inspected (e.g. du-
ring a check or for inserting the inflatable
stopped in the inlet), depending on the
type, the middle flow straightener(s) must
be removed. The lateral flow straighteners
must be left in their guides. The middle
flow straightener(s) can be easily discon-
nected and then removed using a simple
unlocking mechanism/gland on the flow
straightener(s). The separator can then be
accessed directly without removing any
other installed components. The sealing
off of the separator system on the intake
side is carried out by positioning a sewer
blocking mechanism which can be inser-
ted directly into the inlet line of the sludge
trap or, in the event of a separate check,
into the inlet tube of the separator, and on
the output side using the inlet pipe line of
the downstream sampling shaft. The inter-
nal parts are installed in reverse order.
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the coalescence channel must be clea-
ned. If required, the coalescence channel
should be hosed down with a water jet or
high-pressure cleaner after the container
has been emptied. When doing so, ensure
that the pressure is not too high in order
to prevent damage to the channel.
Complete cleaning
When carrying out a complete clean, the
following procedures are required:
Sampling shaft or integrated sampling
point: Clean the sampling trough in the
sampling shaft (if installed). Check the
integrated sampling device for obstruc-
tions.
Float switch:
To clean the float switch, remove it from
the separator. Any impurities and deposits
must be removed gently but thoroughly.
Visually check the float switch for damage
and tightness and replace if necessary.
Float cage:
This must only be removed if the sepa-
rator system needs to be accessed for
cleaning purposes, for example. Sludge
trap and separator: The contents is to be
sucked out/removed separately. Clean
the basins and the internal parts. Check
the valve seat in the separator for con-
taminants and clean if necessary. The
disposal of the contents must be carried
out properly and in accordance with the
applicable regulations. To clean the flow
straighteners, hose them down with high-
pressure cleaners. To do so, disconnect
and remove the flow straighteners if ne-
cessary. The middle flow straightener(s)
(depending on type 0; 1 or 3) can be re-
moved from the mounting using a simple
unlocking mechanism/gland. If necessary,
this can also be completely removed from
the separator system via the opening abo-
ve the float guide.
However, for cleaning purposes, we re-
commend leaving the flow straighteners
Obstructions are to be removed before
the container is hosed down. No compo-
nents of the coalescence channel have to
be removed – with the exception of the re-
vision opening – to clean the inlet fittings.
in the separator and only removing the
middle flow straighteners for inspection
and for cleaning. The other flow straigh-
teners can each be cleaned from front to
back using a high-pressure appliance in
their mounting.
Recommissioning
The system is recommissioned by fol-
lowing the procedure described under
Point 1.2 in reverse order. Then fill the
separator system until it overflows. The
overflow is recognisable by water leaking
in the sampling shaft or, with integrated
sampling, by water leaking into the sub-
sequent sewage system. Put the cover on
once filled.
System maintenance must be carried out
in accordance with the above instructions
– unless there are other official require-
ments – as well as in accordance with the
specifications from EN 858-2, DIN 1999-
100 and DIN 1999-101. The instructions
included separately with each separator
system must also be observed.