Circor ALLWEILER NI Series, Оригинальное руководство по эксплуатации

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Operation
6.2 Start-up
6.2.1 Switching on
Pump aggregate set up and connected properly
All connections stress-free and sealed
Any available auxiliary systems are ready for operation
All safety equipment installed and tested for functionality
Pump prepared, filled and bled properly
NOTE
Material damage caused by dry running!
Make sure the pump is filled properly.
NOTE
Risk of cavitation when throttling down the suction flow
rate!
Fully open the suction-side armature and do not use it to
adjust the flow rate.
Do not open the pressure-side armature beyond the oper-
ating point.
NOTE
Material damage caused by overheating!
Do not operate the pump for long periods with the pressure-
side fitting closed.
Observe the minimum flow rate (→ order data sheet).
1. Open the suction-side armature.
2. Close the pressure-side armature.
3. Switch on the motor and check it for smooth running.
4. Once the motor has reached its nominal speed, open the
pressure-side armature slowly until the operating point is
reached.
5. Make sure any temperature changes on pumps with hot
pumped liquids are below 5 K/min.
6. After the initial stress caused by pressure and operating
temperature, check that the pump is not leaking.
6.2.2 Switching off
Pressure-side armature closed (recommended)
1. Switch off the motor.
2. Check all connecting bolts and tighten them if necessary.
6.3 Shutting down
Take the following measures whenever the pump is shut
down:
Pump is Measure
...shut down
for a prolonged
period
Perform measures accord-
ing to the pumped liquid
(→ Tab. 8 Measures depending
on the behavior of the pumped
medium, Page 21).
...emptied Close the suction-side and
pressure-side armatures.
...dismounted Isolate the motor from its power
supply and secure it against
unauthorized switch-on.
...put into
storage Observe the storage instructions
(→ 4.3 Storage, Page 14).
Tab. 7 Measures to be taken if the pump is shut down
Duration of shutdown (depending
on process) Behavior
of pumped
medium
Short Long
Solids sediment Flush the
pump. Flush the
pump.
Solidifying/
freezing,
non-corrosive Heat up or
empty the
pump and
containers. Empty the
pump and
containers.
Solidifying/
freezing,
corrosive Heat up or
empty the
pump and
containers. Empty the
pump and
containers.
Treat the
pump and
containers
with preser-
vative.
Remains liquid,
non-corrosive
– –
Remains liquid,
corrosive
–
Empty the
pump and
containers.
Treat the
pump and
containers
with preser-
vative.
Tab. 8 Measures depending on the behavior
of the pumped medium
550 113 – 146-900/E BA-2021.06 en-US NI series 21