INSTALLATION, START-UP & MAINTENANCE MANUAL
MODEL NO.: SD-220 TO SD-600- DDS OPTION
REV 0 – May 24,,.2001
25
SECTION 4
4.5 FILTERS
4.5.1 General comments and use
Filters of the series MPH are suitable for filtering solids, oil and condensate out of
compressed air and other neutral, compressed gases. This new filtration concept
is characterized by high flows at low differential pressure.
4.5.2 Function
The soiled medium flows through the filter element "Series MPH" from the inside
to the outside. Solids are filtered out by impact or by the effect of inertia, whereas
oil particles and drops of humidity are filtered out by the effect of coalescence. By
the force of gravity, the filtered-out droplets collect in the lower filter vessel and are
drained automatically or manually.
4.5.3 Assembly and installation
* Advices
•
Within the piping system, the filters should always be used where
the air or gas temperature is lowest.
•
The piping system must be cleaned before filters assembling.
•
The filters must always be installed vertically.
•
An arrow on the upper part of the housing marks the direction of
the flow.
•
Sufficient free space should be left at the bottom for the changing
of filter elements.
4.5.4 Maintenance
* Advices
•
The filter element should be replaced when a differential pressure
of > 10 PSID has been reached, or on latest after 1 year of
operation.
•
The functioning of the automatic condensate drain is to be tested
weekly by manual operation.
•
Should there be no condensate drain, then, depending on the
amount, the condensate on the pre-filter is to be removed several
times a day by opening the hand drain.
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