Danfoss APP series - Flow at Different Rpm

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180R9265 / IOM APP 16-22 Appendices - v02 / 01.2013
Data sheet APP 16-22
t Available as ATEX certied. Category 2,
zone 1 and category 3, zone 2.
t Available with material certicates on
wetted parts
For more details on the variants, please contact
the Danfoss RO Solutions Sales Organisation
4. Variants
5. Flow at dierent rpm When using the diagrams shown below, it is easy
to select the pump which ts the application
best if the ow required and the rotation speed
(rpm) of the pump are known.
5,00
8,00
11,00
14,00
17,00
20,00
23,00
700 800 900 1000 1100 1200
m3/h
rpm
1200 rpm version
APP 22
APP 19
APP 17
APP 16
5,00
8,00
11,00
14,00
17,00
20,00
23,00
700 800 900 1000 1100 1200 1300 1400 1500
m3/h
rpm
1500 rpm version
APP 22
APP 19
APP 17
APP 16
Furthermore, these diagrams shows that the ow
can be changed by changing the rotation speed
of the pump. The ow/rpm ratio is constant, and
the “required “ ow can be obtained by changing
the rotation speed to a corresponding value.
Thus, the required rpm can be determined as:
Required ow × Rated rpm
Required rpm =
Rated ow