Diaphragm-liquid pump NF 1.60
Operation
KNF Flodos AG BA_NF1.60_EN_05_161566.docx
Translation of Original Operating and Installation Instructions
13
Switching the pumps on and off
The motor speed of the pump, and thus the flow rate, is adjustable
and can also be regulated to some extent.
For more details, see Chapter 4, Technical data
Duty cycle / short cycle operation
KNF pumps are designed for continuous operation.
Short start and stop cycles may adversely affect the service life of
the brushed motors.
If the pump is operated with short cycles in your application,
please contact a KNF pump specialist for further information
(Telephone number: see first page).
Turning the pump on
In order to guarantee that the pump can start every time it is
advisable to reduce the back pressure to an acceptable level.
This must also be done after a short power cut.
For more specific information contact the KNF specialists.
Turning the pump off
KNF recommends: if pumping aggressive liquids, the pump
should be rinsed thoroughly prior to switch off (see Chapter
8.2.1), as this will help to lengthen the service life of the
diaphragm.
Restore the system to normal atmospheric pressure (release
hydraulic pressure in pump).
Flow rate NF 1.60
Fig. 7: Flow rate of pumps NF 1.60 DCB-B / DCB-4B and NF 1.60 DC
Adjusting and controlling the
motor speed
Impulse operation
