5 Function description
5.6 Strainer
5.6 Strainer
1
2
Fig. 5: Strainer
1
Strainer cover
2
Strainer insert
The pump station is equipped with two strainers as standard. These strainers serve to separate soiling
that is normally not contained in the pumped liquid. Due to their small size the strainers cannot separ-
ate larger amounts of soiling occurring regularly, nor abrasive fine particles. In the case of such operat-
ing conditions the pump station has to be protected additionally by a correspondingly dimensioned op-
erating filter. Very fine abrasive particles can, however, not be held back by the operating filter and
cause increased wear to the pumps.
Alternatively the strainers can be replaced during commissioning by fine-meshed commissioning strain-
ers
Ä
Commissioning, Page 30. The commissioning strainer is available from the manufacturer. A fur-
ther possibility is the use of an external commissioning filter.
The strainer inserts are made of metal and can be cleaned and reused
Options
Usage
Viscosity
[mm
2
/s]
Mesh width
[mm]
Strainer
Separation of coarse soiling during oper-
ation
< 20
0.25
> 20
0.5
Commissioning strainer/
commissioning filter
Protection of the station during commis-
sioning
–
0.02
Operating filter
Protection of the station during operation –
Depending on
the pumped li-
quid
Tab. 9: Strainers/filters and mesh widths
14
OID 02en-GB Edition 2019-11
Operating instructions
