Diaphragm liquid pump NF 1.25
Operation
KNF Flodos AG
BA_NF1.25_EN_03_163242
Translation of Original Operating and Installation Instructions, English
13
7. Operation
➔
Operate the pumps only under the operating parameters and
conditions described in Chapter 4, Technical data.
➔
Make sure the pumps are being used properly (see Chapter
2.1).
➔
Avoid improper use of the pumps (see Chapter 2.2).
➔
Observe the safety precautions (see Chapter 3).
➔
The pumps are components that are intended to be incorpo-
rated into another machine. Before putting them into service it
must be established that the machinery or equipment in which
they are installed meet the relevant regulations.
CAUTION
Risk of burning
The drive heats up.
➔
Avoid contact with the pump drive.
➔
Avoid contact with flammable materials.
Excessive pressure and the inherent dangers thereof can be
prevented by placing a bypass line with a pressure relief valve
between the pressure and suction side of the pump. For
further information, contact your KNF technical adviser (tele-
phone number: see first page).
➔
If the pump stops running, restore the system to normal at-
mospheric pressure.
For pumps with thermal switch or electronic overload protection:
WARNING
Risk of physical injury and damage to the pump due
to automatic start
If the pump overheats and pump operation is
stopped by the thermal switch / electronics, the
pumps will restart automatically as soon as they have
had time to cool down.
➔
Take steps to ensure that this cannot produce a
hazardous situation.
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 your KNF technical adviser for further infor-
mation (Telephone number: see first page).
Pump standstill
Setting and regulating motor
speed
Impulse operation
