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7TPCurve charts/ technical data7. Curve charts/technical dataGuidelines to the curve chartsThe guidelines below apply to the curves shownon the following pages:• The motors used for the measurements arestandard motors (TEFC or MLE).• Measurements have been made with airlesswater at a temperature of 68 °F (20 °C).• The curves apply to a kinematic viscosity of = 1 mm 2 /s (1 cSt).• Due to the risk of overheating, the pumps shouldnot be used at a flow below the minimum flow rate.• The QH curves apply to actual speed with themotor types mentioned at 60 Hz.12
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