Selection of submersible sewage pumps
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Consulting a professional: The pump’s nameplate indicates a flow rate of 55 and a head of 22 meters. Can it be used as a substitute for a pump with a flow rate of 100 cubic meters and a head of 12 meters? The manufacturer’s instructions include a table in the performance curve, showing the head corresponding to low flow rates, the midpoint value, and the head corresponding to high flow rates. Does it mean it can be used properly at high, low, and rated flow rates?
It can be used; it’s better to make the imported pipe larger.
When the flow rate is high, be aware of the possibility of the motor being overloaded