Maintenance; Repair - Danfoss APP W HC Series Operation Manual

Instruction | APP W HC 15 - 30 pumps

6.2 Maintenance

After 8,000 hours of operation, it is strongly
recommended to inspect the pump and change
any worn parts, e .g . pistons and shaft seal .
This is done in order to prevent a potential
breakdown of the pump . If the parts are not
replaced, more frequent inspection is recom-
mended according to our guidelines .
Standstill:
The APP W HC pumps are made of Duplex/Super
Duplex materials with excellent corrosion
properties . It is however, always recommended
to flush the pump with fresh water when the
system is shut down.
When stopping the pump for more than 1 day
flush the ppump with permeate be rotating the
pump for 10 sec . Flushing through the flashing
valve of the pump without rotating the pump is
not enought for cleaning the inside of the pump .
The pump can be flushed with biocicde like the
membranes . The biocide must be compatible
with the materials used in our pump (materials
can be found in the parts list in the Operating
Guide .

6.3 Repair

In case of irregular function of the APP W HC,
please contact Danfoss High Pressure Pumps
sales organisation .
180R9410 | AQ282628894589en-000801 | IOM APP W HC 15-30 Pumps | 01.2022
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