Diaphragm liquid pump NF 1.300 EX
Servicing
KNF Flodos AG BA_NF1.300EX_EN_05_152146
English translation of original Operating and Installation Instructions
20
8. Servicing
8.1. Servicing schedule
Component
Servicing interval
Pump
-
Regular inspection for external
damage or leaks
Pump head
-
Clean if the flow rate decreases, the
pump does not work or no vacuum
is created (Chapter 8.2)
Diaphragm, valve
plates and seals
-
Change as soon as pumping capac-
ity decreases, preferably sooner
Tab. 14
Standard regulations dictate that the bearings in the pump be
replaced at regular intervals as a precautionary measure.
Depending on the pressure in your system the recommended time
interval will vary - see table below.
Please contact your local KNF Company to discuss the best way of
implementing this service.
Operating pressure [bar g]
Replacement interval
p ≤ 4
20’000 operating hours
Tab. 15
8.2. Cleaning
WARNING
Health hazard due to dangerous substances in the
pump
Depending on the medium transferred, caustic burns
or poisoning are possible.
➔
Wear protective clothing if necessary, e.g. pro-
tective gloves.
➔
Flush the pump with a neutral liquid and pump
empty.
8.2.1. Flushing the pump
➔
If transferring aggressive medium, KNF recommends flushing
the pump with a neutral fluid under atmospheric conditions for
a few minutes before switching off in order to extend the ser-
vice life of the diaphragm.
Ball bearings
Information on procedure
Summary of Contents for NF 1.300 EX
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