M&C MP47-Z Ex Betriebsanleitung Seite 47

Diaphragm Pumps PJ19424-726 EX
Translation of Original Operating- and Installation Instructions, english, KNF PJ19424-726 EX 09/16 17
7.1. Information on switching pump on and off
Switching pump on
The pump may not start up against pressure or vacuum during
switch-on. This also applies in operation following a brief power
failure.
 Make sure that normal atmospheric pressure is present in the
lines during switch-on.
Switching pump off
 KNF recommends: When transferring aggressive media, flush
the pump prior to switch-off (see Section 8.2.1) to increase the
service life of the diaphragm.
Operation