Service; Service Kits; Technical Data; Electrical Data - Grundfos NK Serie Montage- Und Betriebsanleitung

13. Service

Warning
If a pump has been used for a liquid which is
injurious to health or toxic, the pump will be classified
as contaminated.
If Grundfos is requested to service such a pump, Grundfos must
be contacted with details about the pumped liquid, etc. before the
pump is returned for service. Otherwise Grundfos can refuse to
accept the pump for service.
Possible costs of returning the pump are paid by the customer.

13.1 Service kits

Service kits for NK, NKG, see Grundfos Product Center or
Service Kit Catalogue.

14. Technical data

14.1 Electrical data

See the motor nameplate.

14.2 Sound pressure level

See table on page 709.

14.3 Belt drive

If the unit is belt-driven, the following data must not be exceeded:
Max. motor power [kW] for shaft end
-1
Speed n [min ] ∅24
1000 4
1500 5
2000 6
2500 7
3000 10
For higher power outputs, mount an intermediate shaft with
pedestal bearings.

14.4 Operation with combustion engine

Warning
When operating with petrol or diesel engines, the
engine manufacturer's installation and operating
instructions must be strictly observed. Particularly
the direction of rotation is very important. Viewed
from the drive shaft end, the pump rotates to the
right, clockwise. Viewed from the drive shaft end, the
motor must therefore rotate to the left, counter-
clockwise. The correct direction of rotation is
indicated by the arrow on the pump housing.
If the engine is installed in a closed area, the
combustion air data as well as data for exhaust
gases must be particularly noted.
When draining the tank, make sure to have
containers of adequate size ready for this purpose.
∅32 ∅42 ∅48 ∅60
7 11 18 22
10 25 32 38
14 25 - -
17.5 - - -
20 - - -
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