Operating instructions B-Series
Version 2.4, En Page 36 of 81 21-10-2005
5.8 Suction strainer
Foreign components can seriously damage the pump. Their penetration can be prevented by fitting a
suction strainer in the installation.
Extra point(s) for attention with ATEX pumps.
P2a.
P2b.
Prevent dirt particles in the medium (only clean filtered medium allowed).
• Only with volatile and flammable liquids.
Prevent dirt particles larger than the dirt passage of the rotor from arriving in the
suction line and pump.
With the choice of suction strainer take account of the size of the perforations so piping losses remain
limited. The net passage of the suction strainer must at be least 3 times greater than the passage in the
suction line.
Install the suction strainer in such a way that its maintenance and cleaning is possible.
Also make sure that the liquid has the correct viscosity and can flow smoothly through the suction strainer.
Heat the suction strainer if necessary.
For the maximum permissible grain size (see technical specifications B-Series).
Opening without
danger:
In the case of pumping volatile and/or dangerous liquids the
dangers of these substances must be taken into account when
opening or cleaning.
Protection against
other dangers:
In the case of hot liquids being pumped it is the responsibility
of the employer to warn against hot surfaces if employees can
come into contact with them.
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