Diaphragm Pumps UN035_I EX
Operation
17
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 no pressure is present in the lines during
switch-on.
Switching off the pump
KNF recommends: When transferring aggressive media, flush
the pump prior to switch-off to increase the service life of the
diaphragm (see section 8.2.1).
Open pressure and suction lines to normal atmospheric pres-
sure.
