Sanitary pumps
Sanitary pumps
Sanitary pumps
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Curve charts<br />
<strong>Sanitary</strong> <strong>pumps</strong><br />
Curve conditions<br />
The guidelines below apply to the curves shown on the<br />
following pages:<br />
1. Tolerances to ISO 9906, Annex A.<br />
1 kW < P2 < 10 kW<br />
Flow rate: ±9 %<br />
Total head: ±7 %<br />
Efficiency: up to –7 % *<br />
* Efficiency of motor sizes below 10 kW are calculated on the<br />
basis of a formula stated in ISO 9906.<br />
P2 > 10 kW<br />
Flow rate: ±8 %<br />
Total head: ±5 %<br />
Efficiency: –5 %<br />
2. QH curves of the individual <strong>pumps</strong> are shown with<br />
expected speed of a three-phase standard motor.<br />
3. Measurements have been made with airless water at<br />
a temperature of +20 °C.<br />
4. The curves apply to the following kinematic viscosity:<br />
υ = 1 mm 2 /s (1 cSt).<br />
5. If the pumped liquid density and/or viscosity is<br />
higher than that of water, it may be necessary to use<br />
a motor with a higher performance.<br />
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