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Stepping motor diaphragm metering pump FEM 1.02 / FEM 1.09
Operation
KNF Flodos AG BA_FEM1-02_1-09_EN_07_157639.docx
Translation of Original Operating and Installation Instructions
17
Switching off the pump
KNF recommends that after transferring aggressive media the pump
should be flushed thoroughly prior to switch off (see Chapter 8.2.1) in or-
der to prolong the life of the membrane.
Restore the system to normal atmospheric pressure (release hydraulic
pressure in pump).
Suction side filter
The pumped medium should not contain particles as these can prevent the
pump from working correctly. If this cannot be ensured, a < 50
m filter with a
sufficiently large filter area must be used upstream of the pump.