Data sheet PAH 2/4/6.3, PAH 10/12.5, PAH 20/25/32 and PAH 50/63/70/80/100 pumps
180R9379 | AQ188686503004en-000801 | PAH 2-12.5 | 31
© Danfoss | DCS (im) | 2022.07© Danfoss | DCS (im) | 2022.07
9. Service Danfoss PAH pumps are designed for long
periods of service-free operation to ensure low
maintenance and life cycle costs. Provided that
the pump is installed and operated according to
Danfoss specications, Danfoss PAH pumps
typically run 8,000 hours between service.
However, the service schedule for your Danfoss
PAH pump may vary according to the application
and other factors.
The life of a pump may be greatly shortened if
Danfoss recommendations concerning system
design and operation are not followed.
In our experience, poor ltration is the number
one cause of pump damage.
Other factors that aect pump performance and
lifetime include:
• running the pump at speeds outside
specications
• supplying the pump with water at temper-
atures higher than recommended
• running the pump at inlet pressures
outside specications
• running the pump at outlet pressures
outside the specications.
We recommend that you inspect your pump
after 8,000 hours of operation even if it is
running without any noticeable problems.
Replace any worn parts if necessary, including
pistons and shaft seals, to keep your pump
running eciently and to prevent breakdown. If
worn parts are not replaced, then our guidelines
recommend more frequent inspection.
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