Danfoss PAH 2, Инструкция по установке, эксплуатации и обслуживанию

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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 |
25 © Danfoss | DCS (im) | 2022.07 © Danfoss | DCS (im) | 2022.07
6. Motor requirements The required motor power can be calculated by
using the following equation:
n x V x p
P =
600 .000 x η
From the flow curves in item 5, you can deter-
mine the rpm of the pump at the desired flow .
The required torque is calculated as follows:
V x p
M =
62 .8 x η
To determine the correct motor size, both the
power and torque requirement must be verified .
The mechanical efficiency of the pump, at max
pressure, is as follows:
PAH 2, 4, 6 .3 0 .82
PAH 10, 12 .5 0 .9
PAH 20, 25, 32, 50, 63, 70, 80, 100
0 .95
P: Power (kW)
M: Torque (Nm)
η: Mechanical efficiency
p: Pressure (barg)
n: Motor speed (rpm)
V: Displacement (cm
3
/rev .)